fuse interrupt rating vs current rating

A circuit breaker is not just a switching device - its primary function is protection, its secondary function is switching / isolation. Agency Approvals: UL Listed: Class RK5, Guide JDDZ, File E4273 When selecting a fuse, one should verify that the breaking capacity of … To illustrate: a load interrupting switch will have an interrupting rating of 600A, but a momentary “withstand” of 40kA. 3 A Automotive Fuses Interrupting Rating: 200,000A RMS Sym. IR VS SCCR | Mike Holt's Forum Current Ratings for Industrial Control Panels Interrupting Ratings for Overcurrent Protective Devices Although fuses and circuit breakers are tested using different methods, a fuse’s interrupting rating (as well as the AIC of a circuit breaker) is considered to be the same as its SCCR. article 110.10 of the neC specifically requires that V (V-L) = Line to Line Voltage in volts.. For continuous operation, the fuse rating is less than the 125% is not recommended since all the motor is designed to run … Obviously, with the current limiting effect and high interrupting rating of a current-limiting fuse, you can achieve combination ratings tested per UL 508 well above the minimum ratings. This has little or no relation to the amount of current normally consumed by the … (20,000 AIC @ 125V DC). Mouser Part # 576-0287003.L. DC Voltage Ratings - SunWize | Power Independence Current-Limiting Range: The available fault currents a fuse will clear in less than ½ cycle, thus limiting the actual magnitude of current flow. By standard, current-limiting fuses must operate in half a cycle or less, although most fuse OEMs state that their fuses typically operate in a quarter of a cycle. Minimum breaking current is the lowest current value at which it must break and interrupt the current. Fuse Rating vs Circuit Breaker Rating | GoHz.com For symmetrical-current-rated power fuses, the first-cycle symmetrical rms current can be directly compared to the rated symmetrical interrupting capabilities in a manufacturer’s table only if the first-cycle short circuit X/R ratio at the fault point (i.e., source side of the power fuse) is 15 or less. Interrupting Rating What is the difference between a fuse's rated current and ... Minimum Operating Temperature. FUSE CHARACTERISTICS The voltage rating can be exceeded, and still get acceptable fuse operation, when the circuit prospective current is very much less than the fuse interrupting rating. AIC rating Interrupting rating (protection and coordination of industrial and commercial power systems): A rating based on the highest root-mean-square (RMS) alternating current that the fuse (circuit breaker is forgotten in here) is required to interrupt under the condition specified. NORMAL OPERATING CURRENT: The current rating of a fuse is typically derated 25% for operation at 25ºC to avoid nuisance blowing. For example, a fuse with a current rating of 10A is not usually recommended for operation at more than 7.5A in a 25ºC ambient. For additional details, see RERATING in the previous section and AMBIENT TEMPERATURE below. Interrupting Rating: The highest alternating or direct current fuse is designed to interrupt under specified application. Larger, more expensive circuit breakers may have interrupting ratings of 14,000A or higher. Fuses with current ratings over 100E amps must melt in 600 seconds at 220 to 264% of the E (ampere) rating. • NEC® Article 100 Definition • Highest current an OVERCURRENT DEVICE (fuse or circuit breaker) is rated to safely interrupt. The breaker is rated 150 vdc so no problem there. Current rating up to 600 A. They are designed and tested to meet the overcurrent circuit protection needs of the eMoblilty market, specifically Electric Vehicle (EV) applications. rating.) MRBF and ANL also have moderately high interrupt ratings suitable for a main battery fuse but nowhere near as high as Class T. Class T is also the most expensive. Short Circuit Current Calculation Example. #3. A Class J fuse is a 600 volt AC current limiting, fuse that is rated to interrupt a minimum of 200,000 amps. > A fuse, which is designed according to a IEC standard, can continuously operate at 100% of rated current of the fuse. Fuses have the advantage in that they can easily be selectively coordinate down to 0.01 seconds under any fault current up their maximum interrupting rating. vs Fuse Packaging. There will be a large inverter, But the biggest class T fuse that BlueSea offers is 400amp while their ANL fuses go up to 750 amps. 10,000 A this … Oct 25, 2020. C The fuse will melt in 1000 seconds at some current value between 1.7 and 2.4 times the C number. What is the difference between AIC and SCCR ratings? The interrupting rating is defined in the NEC as “the highest current at rated voltage that a device is identified to interrupt under standard test conditions.” A circuit breaker with a 200- ampere rating for example will not trip unless more than 200 … Voltage rating is 250VAC with 35A max interrupting rating. which is “amperes … An engineer can safely apply a circuit breaker in a power system where the available short-circuit fault current on the supply side terminals does not exceed its maximum interrupting rating. For instance, if a fuse has an interrupting rating of 300,000A, the test Bussmann and Littelfuse self-certify their Class J fuses to a 300,000 interrupting rating,. While I realize that the Class T fuses have a higher interrupt rating, the ANL are supposed to meet ABYC ratings. Ampere Ratings: 1/10-600 Amps Voltage Rating: 250 Volts AC (or less), 125 Volts DC Current Limiting RK5 Fuse. Continuous Current Rating: Rating fuse can continuously carry current without exceeding temperature rise values. Automotive Fuses ATOF 32V 3A Low-Current Nylon Enlarge Mfr. it should pass this current but could open at any value above this. The total interrupting current rating would be 40kA, whether it … SCCR is mostly what we used to call the “Withstand Rating” (WR) and was assigned to the equipment itself (gear) and any NON-interrupting devices in the power stream. kAIC Rating of Circuit Breakers | Calculation in Low Voltage SystemkAIC Rating of Circuit Breakers: Unfused Circuit Breakers. According to IEEE Std C37.13, the basis of the rated short-circuit current of an unfused circuit breaker is the rms symmetrical current ...kAIC Rating of Circuit Breakers: Fused Circuit Breakers. ...Motor Contributions. ...References. ... > The fuse current rating should be based on the operating current in the application. The fuse you use must have a breaking capacity greater than the maximum possible current which can be delivered from the source it is connected to. Fuse Current Rating CURRENT RATING: 0-600 amps INTERRUPTING RATINGS: Three permitted: 50,000, 100,000, and 200,000 amps rms symmetrical Time delay is optional for Class K fuses. Breaking capacity – Wikipedia. Typical low-voltage power fuse voltage ratings are 250 Vac and 600 Vac. or IR which refer to “interrupt rating.”. Information on other fuse series can be obtained from the Littelfuse. A circuit breaker that uses current-limiting fuses will not have an interrupting rating but will use the interrupting rating of the fuse. Interrupting Rating. When a fuse blows, it must be replaced immediately, which might be difficult in a gloomy location or if the correct replacement is not readily available. These dual element, time-delay fuses have minimum industry standard time-delay of 10 seconds at 5 times the fuse rating (8 sec. > A fuse, which is designed according to a UL standard, can continuously operate at 75% of rated current of the fuse. Fuse Type. Mounting Style. Indicator Style. Have you ever wondered why breakers have two amperage ratings? The full-load current of a building power distribution system is 1200 A. The Amp Interrupt Current (AIC) rating is important, as batteries can produce a tremendous amount of current when short circuited. The interrupting-capacity (IC) rating of an overcurrent device is the maximum fault current that the device can interrupt without damage to itself. For single-phase: Motor fuse rating = P kW x 1.25 / (pf x V (V)). The breaking capacity or interrupting rating of a protective device is the maximum available current, at rated voltage, that the device can safely open without rupturing. article 110.10 of the neC specifically requires that A Class A fuses have parameters that do not fall within the ‘C’, ‘E’, or ‘R’ definitions above. All equipment or devices installed on the power system must also carry an interrupting capacity (I C) greater than the calculated short-circuit current. Answer (1 of 4): Rated current is the value marked on the fuse. Note the power of the appliance – usually in the appliance manual,Note the voltage (240 volts in the UK).Use the next highest fuse rating after the calculation. Say the calculated fuse rating is 2.2679 amps, use a 3 amp fuse. Interrupting rating, circuit breaker: “The highest current at rated voltage that a device is intended to interrupt under standard test conditions.” [2] Interrupting rating, fuse: “The highest prospective rms symmetrical alternating current or direct current which a fuse will interrupt under specified conditions verified by operation at Class H fuses are rated from 65A to 600A with an interrupting rating (IR) of 10kA for low-interrupt applications. High Interrupt Rating. The I²t (Ampere Squared Seconds) also known as Melting Point in a fuse. Interrupting ratings may vary with fuse design and range from 35 amperes for some 250VAC metric size (5×20mm) fuses up to 200,000 amperes for the 600VAC KLK series. The building is served by a single transformer having 5 percent impedance. Time Delay fuses are required to hold 500% current rating for a minimum of ten seconds. The breaking capacity or interrupting rating of a protective device is the maximum available current, at rated voltage, that the device can safely open without rupturing. Current-limiting fuse is a current-limiting fuse interrupts all available currents its threshold current and below its maximum interrupting rating, limits the clearing time at rated voltage to an interval equal to or less than the first major or symmetrical loop duration, and limits peak let-through current to a value less than the peak current that would be possible with the … It will SWITCH 600A of current, but if the upstream breaker closes back into a fault, or clears a fault, it will withstand the momentary current flow of … IR = 200 KA In accordance with NEC409, in order to safely connect directly to the feeder circuit, the panel must be designed for a minimum SCCR of 100 KA. NEMA Standards for R-rated medium voltage power fuses require they operate within 15-35 seconds when subjected to an rms current 100 times the R rating. The time-delay characteristics of these fuses typically allows them to be sized closer to the running ampacity of inductive loads to reduce cost and provide improved overcurrent protection. Interrupting ratings range from 50 to 65 kA. [TITLE] The 607 Series High-current Cartridge Fuses are now available in through-hole, 10mm x 32mm packages in quantities of 500. In other words, because of the way fuses are short-circuit tested (without additional conductor impedance), their interrupting capacity is equal to or greater than their marked interrupting rating. One fuse manufacturer suggests the fuse voltage rating can be exceeded when the circuit prospective current is no more than ten times the current rating of the fuse. When reading technical data about a particular fuse you will see symbols or rather abbreviations such as I.R. Class RK5 Fuses: FRN-R (250V) Time-Delay: Dual-Element, Time-Delay - 10 seconds (minimum) at 500% rated current. If a fault current exceeds a level beyond the interrupting capacity of the protective device, the device may actually rupture, causing additional damage. A major point is that the fuse interrupts an available short-circuit current at least equal to or greater than its marked interrupting rating. Another difficulty is that a do-it-yourselfer may choose a fuse with a voltage or current rating too high for its needs, resulting in an overheated circuit. Generally. Posted on April 16, 2013. by brotheradmin12. > A fuse, which is designed according to a UL standard, can continuously operate at 75% of rated current of the fuse. The feeder circuit Fault Current is 100 KA and the fuse IR of 200 KA exceeds that value, as required. Key considerations for choosing the right fuse: Voltage rating: Maximum ac or dc voltage at which fuse is designed to operate. • Voltage rating of 600 V alternating current only. I wanted to replace the inline fuse to my inverter and put it on a breaker instead. Ampere-Squared-Seconds (I2t) A means of describing the thermal energy generated by current flow. can be disabled by the user, the interrupting capacity is the maximum rating of the device for the rated time interval. Class J fuses are offered in fast acting, or time delay, versions. The purpose of this rating is to assure that the heat created across the fuse during a surge has insufficient time to thermally conduct away from the fuse to external circuitry. Not understanding this difference between SCCR and IR may lead to under-protection, fire, and possibly death. Section 110.9 of the 2005 NEC requires that equipment intended to interrupt current at fault levels shall have an interrupting rating (IR) sufficient for the nominal circuit voltage and the current that is available at the line terminals of the equipment. “Interrupt rating” is not the same as “ampere rating,” even though both these are dealing with current values. AIC (Amps Interrupting Capacity) – As this relates to a circuit breaker device, states the maximum fault current that a circuit breaker may safely experience without welding the contacts or otherwise causing injury or damage. Same Dimensions and Physically interchangeable with UL Class H fuse holders. article 110.9 of the neC requires overcurrent protective devices to have interrupting ratings sufficient for the available fault current and voltage at the equipment it is intended to protect. the interrupting rating or interrupting Capacity of a fuse or circuit breaker is the same as its sCCr. article 110.9 of the neC requires overcurrent protective devices to have interrupting ratings sufficient for the available fault current and voltage at the equipment it is intended to protect. A 20-ampere circuit breaker with an interrupting rating of 10,000 amperes can be applied at a point in the system where the available fault current is 65,000 amperes only if it is series rated in combination with a lineside fuse or circuit breaker that has a series combination rating with the 20-ampere circuit breaker of ___ or greater. But a system’s or component’s SCCR may depend on the fuse or circuit breaker used in the circuit. Standard” Test Conditions - Circuit Breakers. Generally, small batteries have lower currents than larger batteries. Other abbreviations could be A I.R., A IR, or kA I.R. > The fuse current rating should be based on the operating current in the application. Equipment intended to interrupt current at fault levels shall have an interrupting rating at nominal circuit voltage at least equal to the current that is available at the line terminals of the equipment. the interrupting rating or interrupting Capacity of a fuse or circuit breaker is the same as its sCCr. Class T is the gold standard for interrupting a ton of current, making it great for use as a main battery fuse particularly for lithium batteries. I'm planning to install a new house bank (Lithium) and was planning to use Class T fuses. #3. Voltage rating — The voltage rating is the maximum voltage at which a fuse is designed to operate safely. minimum for 250V, 30A and less). Wednesday, July 29, 2015. Also known as interrupting rating or short circuit rating, the breaking capacity is the maximum current which the fuse can safely break or interrupt at rated voltage. OCPD - Interrupting Rating (I.R.) second delay at 500 percent current rating. Fuses listed in accordance with UL/CSA/ANCE 248 are required to have an interrupting rating of 10,000 amperes CURRENT RATING: 0-600 amps INTERRUPTING RATINGS: Three permitted: 50,000, 100,000, and 200,000 amps rms symmetrical Time delay is optional for Class K fuses. Interrupting-Current Rating. Breaking Capacity / Interrupting Rating A fuse must be able to open the circuit under a short circuit condition without endangering its surroundings. SCCR (Short Circuit Current Rating) – Often confused with AIC ratings this refers to the maximum Data Center Power Supplies. Information on other fuse series can be obtained from the Littelfuse. How fuse rating is calculated? Class J current-limiting fuses, nonrenewable.-Short-circuit interrupting rating of 200,000 A, rms, symmetrical. Minimum current density of the busbars should be 1.3A/mm2 (IEC 60269 part 4) If application does not meet this condition – derate current rating Example: - 200A square body fuse is mounted onto a busbar with cross sectional area 120mm2 - 2Minimum cross sectional area for 200A fuse: 200/1.3 = 154mm-120mm2 is only 70% of IEC recommended size The breaking capacity of a fuse specifies the maximum current which the fuse is guaranteed to be able to interrupt if a fault should occur. proper application is drastically reduced with fuses because modern current-limiting fuses can provide high assembly SCCRs and straight voltage ratings since they have: - High Interrupting Ratings of 200,000A or more - Excellent current limitation to protect low rated components at high short-circuit current levels As a concrete example, compare the Littlefuse 5x10mm fuses on this datasheet: Voltage rating is 125VAC with 10kA max interrupting rating. Re: Breaker vs Fuse That,s what I needed to know. Fuse Current Rating Interrupt Rating (IR) is assigned to over current protective devices which actually interrupt, like circuit breakers and fuses, and the equipment that contains them. High Current 40-63A Applications. The interrupting rating is defined in the NEC as “the highest current at rated voltage that a device is identified to interrupt under standard test conditions.” A circuit breaker with a 200-ampere rating for example will not trip unless more than 200 amperes of current is drawn through the circuit breaker . The 607 Series high-current, high-voltage cartridge fuse, designed for overcurrent protection applications, provides a robust solution for demanding high-voltage power supply circuits. Your access to this site has been limited. So far, the design appears sound. AIC ratings are measured using Amps RMS Symmetrical. Definition: The rating of a device to interrupt the flow of power or current, generally applied to a circuit breaker or a switch. Time Delay fuses are required to hold 500% current rating for a minimum of ten seconds. In contrast, most modern, current-limiting fuses have an interrupting rating of 200,000 or 300,000A and are commonly used to protect the lower rated circuit breakers. 1.1.2.3. E-Rated fuse are UL Listed and operated per ANSI C37.46-2000. The gR class fuse represents considerably improved The short-circuit current rating is the maximum short circuit current that the circuit breaker is rated to safely interrupt at a specific maximum voltage. Breaking capacity or interrupting rating is the current that a fuse, circuit breaker, or other electrical apparatus is able to interrupt without being destroyed or causing an electric arc with unacceptable duration. The fuse must be applied per its maximum voltage rating. Littelfuse, Inc. announced the compact cartridge fuse series available that’s rated at 500Vac/Vdc with current ratings from 40A to 63A and a 10,000A interrupting rating. I know the difference between momentary and interrupting ratings: momentary is the maximum fault current which the breaker/fuse can withstand, and interrupting (AIC) is the maximum fault current which the breaker/fuse can interrupt. When a fuse is interrupting a current within its current-limiting range, the term is usually expressed as melting, arcing, or total clearing I2t. 1), For motor circuit, if the fuse is used in main circuit, we should consider the fuse rated current is at least 1.6 times of main circuit operation current. Note that if a 5-cycle breaker was certified, the contact part time is 50 msec. Short-circuit current ratings defined. Compatibility with series rated systems will in all likelihood be limited to circuit breakers that (1) remain closed during the interruption period of the fully rated OCPD installed on their line side and (2) have an interrupting rating that is not less than the let-through current of an upstream protective device (such as a current-limiting fuse). In the case of motor protection, the fuse must be rated to withstand starting inrush. The National Electrical Code® 110.9, requires When a fuse is interrupting a current within its current-limiting range, the term is usually expressed as melting, arcing, or total clearing I2t. According to the National Electric Code (NFPA-70 or CSA 22.1), per Article 450-3(B) of NFPA-70 (similar statements can be found in CSA 22.1), the maximum fuse size is defined in table 450.3(B) with a rating not greater than 125% of the rated secondary current. For example, a fuse with a 2R rating will open within 15 to 35 seconds on an applied current of 2 x 100 = 200 amperes. The DC rating is very important as it is more difficult to interrupt DC current flow. Interrupting Capacity The highest current at rated voltage that the device can interrupt. Color. What is 6kA in MCB? The prospective short-circuit current that can occur under short circuit conditions should not exceed the rated breaking capacity of the apparatus, otherwise breaking … Littelfuse, Inc. announced the new EV1K Series Fuses, the first Automotive Grade fuse with a rating of 1000 Vdc. MRBF and ANL also have moderately high interrupt ratings suitable for a main battery fuse but nowhere near as high as Class T. Class T is also the most expensive. AIC (kAIC) applies to protective interrupting devices such as circuit breakers and fuses. 110.9 Interrupting Rating. Short-Circuit Current Rating (SCCR) A short-circuit current rating applies to a meter socket or a meter main whether it has a disconnect in it or not. Maximum Operating Temperature. … Ampere-Squared-Seconds (I2t) A means of describing the thermal energy generated by current flow. For example, a device rated 10K AIC will interrupt current up to 10,000 Amps without shorting to ground or exposing live parts. less than their minimum interrupting rating. The battery short circuit current rating can typically be found on the battery spec sheet or by contacting the manufacturer. • Self protection rating only • NEC® 110.9 Interrupting Rating. Rated Voltage 500 Vdc/Vac. Series. Same Dimensions and Physically interchangeable with UL Class H fuse holders. Fuse type: R-Rated Fuse Product Current Rating Voltage Rating Interrupt Capacity ANL-FUSE20 20A 72V 180A @48V ANL-FUSE30 30A 72V 200A @48V ANL-FUSE40 40A 72V 240A @48V ANL-FUSE60 60A 72V 360A @48V ANL-FUSE100 100A 72V 500A @48V Mechanical Parameters Dimension 3.15 x 0.89 x 0.35 inches 80.0 x 22.5 x 8.7 mm aR CLASS vs. gR / gS CLASS FUSES Example: 100A aR vs. 100A gR aR class fuses feature a high minimum interrupting current as compared with their current rating. The 500V fuse … INTERRUPTING RATING: Also known as breaking capacity or short circuit rating, the interrupting rating is the maximum approved current which the fuse can safely interrupt at rated voltage.During a fault or short circuit condition, a fuse may receive an instantaneous overload current many times greater than its normal operating current. The current definition of interrupting rating in NEC Article 100 and the current text of NEC 110.9 is shown below. Since, this breaker is certified as a 3-cycle breaker it is certified to interrupt a total current of 44kA at time from 3 cycles to 2 seconds. Standard Test Conditions - Fuses Branch circuit fuses are tested without any additional conductor in the test circuit. INTERRUPTING RATING: Also known as breaking capacity or short circuit rating, the interrupting rating is the maximum approved current which the fuse can safely interrupt at rated voltage.During a fault or short circuit condition, a fuse may receive an instantaneous overload current many times greater than its normal operating current. BTW, "current - limiting" refers to the fuses ability to both limit and interrupt the fault current in the first half-cycle of a fault( short curcuit), thus preventing the fault current from reaching it's theoretical maximum. The EV1K provides overcurrent protection in EV high-voltage power supply applications, including: On … a. Interrupting rating is based the device's ability to break an inductive or resistive load of the respective amperage's listed amperage, while the short circuit rating applies to its ability to stop the intense current that flows during a fault to neutral, ground, or another phase without a … > A fuse, which is designed according to a IEC standard, can continuously operate at 100% of rated current of the fuse. INTERRUPTING RATING: Also known as breaking capacity or short circuit rating, the interrupting rating is the maximum approved current which the fuse can safely interrupt at rated voltage. During a fault or short circuit condition, a fuse may receive an instantaneous overload current many times greater than its normal operating current. 1. Most circuit breakers and fuses have an IC rating of 10,000 amps. • Not interchangeable with any other fuse class. Interrupting ratings may vary with fuse design and range from 35 amperes for some 250VAC metric size (5×20mm) fuses up to 200,000 amperes for the 600VAC KLK series. R The fuse will melt in 15 to 35 seconds when the current equals 100 times the R number. Fuses of a specific UL class can be used when not exceeding the maximum amp rating shown in the marking. Continuous Current Rating: Rating fuse can continuously carry current without exceeding temperature rise values. This definition is from the IEEE Standard Dictionary of Electrical and Electronic Terms. This short-circuit current rating is normally expressed in rms symmetrical amperes and is specified by the current magnitude only. Uninterruptible Power Supply (UPS) Power Conversion Equipment - Inverters and Rectifiers Availability. When selecting a fuse, consider voltage rating, ampere rating, interrupting rating, time delay vs. non-time delay, time-current characteristics and codes and standards. Class T is the gold standard for interrupting a ton of current, making it great for use as a main battery fuse particularly for lithium batteries. Generally, this 0 ... July 2011 #3. For Three-phase: Motor fuse rating = P kW x 1250 / (1.732 x power factor x V (V-L)). In other words, the fuse rating is equal to 1.25 times the full load current. Fuse Rating vs Circuit Breaker Rating. Interrupting Rating: The highest alternating or direct current fuse is designed to interrupt under specified application. Current ratings of 100E amps or less must melt in 300 seconds at 200 to 240% of the E (ampere) rating. The breaking capacity or interrupting rating of a protective device is the maximum available current, at rated voltage, that the device can safely open without rupturing. Current-Limiting Range: The available fault currents a fuse will clear in less than ½ cycle, thus limiting the actual magnitude of current flow. Voltage, same or higher than circuit operation rated voltage is OK. 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Vdc so no problem there 2.4 times the full load current above which another protection must... Breakers may have interrupting ratings of 14,000A or higher rating is the lowest current value between and! Is switching / isolation definition • highest current an OVERCURRENT device ( fuse or circuit breaker used the. Overcurrent circuit protection needs of the E ( ampere ) rating device can interrupt at 200 to 240 % the... Dc current Limiting, it will protect the starter at much higher levels... V ( V-L ) ) building power distribution system is 1200 a circuit fuses are tested any... Protection, the fuse IR of 200 KA exceeds that value, as.! It on a breaker instead a I.R., a device rated 10K AIC will interrupt up! Its normal operating current AIC will interrupt current up to 10,000 amps series can obtained! Full load current on other fuse series can be obtained from the IEEE Standard Dictionary of Electrical and terms. Be rated to withstand starting inrush circuit breakers and fuses the ANL are supposed to meet the OVERCURRENT protection... Provide superior withstand ratings under high fault currents that would otherwise damage conductors and equipment if protected breakers... - its primary function is switching / isolation about a particular fuse you see... How fuse rating is equal to 1.25 times the full load current the unit of measure for AIC amps! System is 1200 a > What is interrupt rating 1250 / ( 1.732 x power factor x V V-L! Feeder circuit fault current is 100 KA and the fuse IR of 200 exceeds! Component ’ s SCCR may depend on the battery spec sheet or by contacting manufacturer...