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Industrial differential switches from 80 A and 5SM2 blocks

Industrial differential switches from 80 A and 5SM2 blocks are high-performance residual current devices (RCDs) and residual current circuit breakers with overcurrent protection (RCBOs) designed for demanding electrical installations. These devices are available in 2-pole and 4-pole configurations, with rated currents from 6 A up to 125 A, and s...

Industrial differential switches from 80 A and 5SM2 blocks are high-performance residual current devices (RCDs) and residual current circuit breakers with overcurrent protection (RCBOs) designed for demanding electrical installations. These devices are available in 2-pole and 4-pole configurations, with rated currents from 6 A up to 125 A, and short-circuit breaking capacities up to 10 kA. They feature various trip characteristics including type AC, type A, type B, and type B+ for universal, pulsating, and AC/DC sensitive fault currents, as well as selective (S) and short-time-delayed (K) versions for discrimination. Rated voltages cover 230 V AC for single-phase and 400 V AC for three-phase systems. The portfolio includes modular residual current units (RC units) compatible with Siemens 5SL4, 5SY, and 5SP4 series miniature circuit breakers, as well as integrated RCBOs combining overcurrent and earth leakage protection in a single device. Sensitivity options range from 30 mA for personal protection to 300 mA and 500 mA for fire prevention and equipment protection.

These industrial differential switches are primarily installed in main and sub-distribution boards within commercial buildings, industrial plants, data centers, and infrastructure facilities. They are essential for protecting electrical circuits against earth faults in motor control centers, lighting distribution panels, heating and ventilation systems, and power supply units for machinery. The selective and short-time-delayed versions are particularly suited for tiered distribution systems where coordination between upstream and downstream protective devices is required to ensure continuity of service. They are also widely used in renewable energy installations, such as photovoltaic systems, and in EV charging stations where DC-sensitive residual current protection is mandatory.

All devices comply with international standards IEC 61008 and IEC 61009 for residual current devices and RCBOs, as well as relevant EN and VDE regulations. They are designed for DIN rail mounting in standard 18 mm modular enclosures. The 5SM2 and 5SU1 series are fully compatible with Siemens SENTRON protection, switching, and measuring technology, ensuring seamless integration with other Siemens components such as busbars, auxiliary contacts, and signaling devices. The modular RC units allow flexible combination with Siemens 5SL4, 5SY, and 5SP4 MCBs to create customized protection solutions.

At Electric Automation Network, we offer the complete range of Siemens industrial differential switches and RCBOs with real-time pricing and availability. Our engineering team provides personalized technical support to help you select the correct device for your specific application, whether you need a 30 mA RCBO for socket outlet protection or a selective 300 mA RCD for a main distribution board. We ensure fast express shipping worldwide, with all products backed by full documentation and manufacturer warranties.

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Manufacturer Code Reference Catalog Number Description Delivery Price

5SU1674-7FK81

5SU1674-7FK81

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RCBO, 10 kA, 4P, type B+, short-time-delayed K, 300 mA, C-Char, In: 100 A, Un AC: 480 V

 		3 View Availability View Price

5SM2745-8

5SM2745-8

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RC unit for 5SY, 4-pole, type A, selective, In: 63 A, 500 mA, Un AC: 400 V

Differential block p / automatic 5SY of 70mm, type A (pulsating), 400V AC, 0,3... 63A, 4 poles, 500 mA, equation S (selective). Cancelations and returns limited. Consult conditions.

 		3 View Availability View Price

5SM2745-6

5SM2745-6

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RC unit for 5SY, 4-pole, type A, In: 63 A, 500 mA, Un AC: 400 V

Differential block p / automatic 5SY of 70mm, type A (pulsating), 400V AC, 0,3... 63A, 4 poles, 500 mA. Cancelations and returns limited. Consult conditions.

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5SM2845-2

5SM2845-2

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RC unit for 5SY, 4-pole, type AC, selective, In: 63 A, 1000 mA, Un AC: 400 V

Differential block p/aut. 5SJ/5SY access. curves B and C, class AC, 3mód., 4 poles, 6/63A, 1000mA, selective (S). Cancelations and returns limited. Consult conditions.

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5SM2845-8

5SM2845-8

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RC unit for 5SY, 4-pole, type A, selective, In: 63 A, 1000 mA, Un AC: 400 V

Differential block p/aut. 5SJ/5SY access. curves B and C, class A, 3mód., 4 poles, 6/63A, 1000mA, selective (S). Cancelations and returns limited. Consult conditions.

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5SU1674-7BK82

5SU1674-7BK82

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RCBO, 10 kA, 4P, type B, selective, 300 mA, C-Char, In: 125 A, Un AC: 400 V

FI/LS switches, 10 kA, 4P, type B, selective, 300 mA, Curve C, Input: 125 A, One AC: 400 V. Cancelations and returns limited. Consult conditions.

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5SM2636-8

5SM2636-8

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RC unit for 5SL4, 3-pole, type A, selective, In: 63 A, 300 mA, Un AC: 400 V

Differential block p/aut 5SL4 class A 0.3-63A 3P 300MA SEL. Cancelations and returns limited. Consult conditions.

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5SU1324-7FA20

5SU1324-7FA20

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RCBO, 10 kA, 2P, type A, 30 mA, C-Char, In: 20 A, Un AC: 230 V

FI/LS-PROTECTOR TYPE A (PSE/SSF), D=70 MM IFN 30MA, 10KA,2-POLOS C 20A 3MW. Cancelations and returns limited. Consult conditions.

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5SM3615-6KK

5SM3615-6KK

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Residual current operated circuit breaker, 2-pole, type A, In: 125 A, 300 mA, Un AC: 230 V

Class A differential switch, 2 mod., 2 poles, 125 A, 300 mA. Manufactured to order. Non-Cancelable Non-Returnable.

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5SM2847-8

5SM2847-8

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RC unit for 5SP4, 4-pole, type A, selective, In: 100 A, 1000 mA, Un AC: 400 V

Differential block p/aut. 5SP4 access. curves B and C, class A, 5mód., 4 poles, 80/100A, 1000mA, selective (S). Cancelations and returns limited. Consult conditions.

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5SM2335-6

5SM2335-6

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RC unit for 5SY, 3-pole, type A, In: 63 A, 30 mA, Un AC: 400 V

Differential block p / automatic 5SY of 70mm, type A (pulsating), 400V AC, 0,3... 63A, 3 poles, 30mA. Cancelations and returns limited. Consult conditions.

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5SM2335-0

5SM2335-0

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RC unit for 5SY, 3-pole, type AC, In: 63 A, 30 mA, Un AC: 400 V

Differential block p / automatic 5SY of 70mm, type AC (alternating), 400V AC, 0,3... 63A, 3 poles, 30mA. Cancelations and returns limited. Consult conditions.

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5SU1324-6FA06

5SU1324-6FA06

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RCBO, 10 kA, 2P, type A, 30 mA, B char., In: 6 A, Un AC: 230 V

FI/LS-PROTECTOR TYPE A (PSE/SSF), D=70 MM IFN 30MA, 10KA,2-POLOS B 6A 3MW. Cancelations and returns limited. Consult conditions.

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5SM2626-2

5SM2626-2

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RC unit for 5SL4, 2-pole, type AC, selective, In: 63 A, 300 mA, Un AC: 230 V

Differential block p/aut 5SL4 class AC 0.3-63A 2P 300MA SEL. Cancelations and returns limited. Consult conditions.

 		3 View Availability View Price

5SM3448-6

5SM3448-6

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Residual current operated circuit breaker, 4-pole, type A, In: 100 A, 100 mA, Un AC: 400 V

DIFFERENTIAL SWITCH TYPE A PSE/SSF 100A 3+N-POL IFN 100MA 400V 4MW. Manufactured to customer specifications. Non-Cancelable Non-Returnable.

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5SM2325-6

5SM2325-6

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RC unit for 5SY, 2-pole, type A, In: 63 A, 30 mA, Un AC: 230 V

Differential block p/aut. 5SJ/5SY access. curves B and C, class A, 2mód., 2 poles, 6/63A, 30mA. Cancelations and returns limited. Consult conditions.

 		3 View Availability View Price

5SU1374-8AK81

5SU1374-8AK81

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RCBO, 10 kA, 4P, type B, short-time-delayed K, 30 mA, D char., In: 100 A, Un AC: 400 V

 		3 View Availability View Price

5SU1374-7AK81

5SU1374-7AK81

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RCBO, 10 kA, 4P, type B, short-time-delayed K, 30 mA, C-Char, In: 100 A, Un AC: 400 V

FI/LS switches, 10 kA, 4P, type B, with short delay K, 30 mA, Curve C, Input: 100 A, One AC: 400 V. Cancelations and returns limited. Consult conditions.

 		3 View Availability View Price

5SU1374-7AK82

5SU1374-7AK82

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RCBO, 10 kA, 4P, type B, short-time-delayed K, 30 mA, C-Char, In: 125 A, Un AC: 400 V

FI/LS switches, 10 kA, 4P, type B, with short delay K, 30 mA, Curve C, Input: 125 A, One AC: 400 V. Cancelations and returns limited. Consult conditions.

 		3 View Availability View Price

5SM2327-6

5SM2327-6

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RC unit for 5SP4, 2-pole, type A, In: 100 A, 30 mA, Un AC: 230 V

Differential block p/aut. 5SP4 access. curves B and C, class A, 3.5mód., 2 poles, 80/100A, 30mA. Cancelations and returns limited. Consult conditions.

 		3 View Availability View Price

5SM2327-0

5SM2327-0

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RC unit for 5SP4, 2-pole, type AC, In: 100 A, 30 mA, Un AC: 230 V

Differential block p/aut. 5SP4 access. curves B and C, class AC, 3.5mód., 2 poles, 80/100A, 30mA. Cancelations and returns limited. Consult conditions.

 		3 View Availability View Price

5SM2121-6

5SM2121-6

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RC unit for 5SY, 2-pole, type A, In: 16 A, 10 mA, Un AC: 230 V

Differential block p / automatic 5SY of 70mm, type A (pulsating), 230V AC, 0,3... 16A, 2 poles, 10mA. Cancelations and returns limited. Consult conditions.

 		3 View Availability View Price

5SM2347-6

5SM2347-6

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RC unit for 5SP4, 4-pole, type A, In: 100 A, 30 mA, Un AC: 400 V

Differential block p/aut. 5SP4 access. curves B and C, class A, 5mód., 4 poles, 80/100A, 30mA. Cancelations and returns limited. Consult conditions.

 		3 View Availability View Price

5SM2332-6KK01

5SM2332-6KK01

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RC unit for 5SY, 3-pole, type A, short-time delayed, In: 40 A, 30 mA, Un AC: 400 V

PR BLOC. DIF. 5SY TYPO TO PSE/SSF 0.3-40A 3POL. IFN 30MA 400V 3TE, SHORT DURATION DELAY. Cancelations and returns limited. Consult conditions.

 		3 View Availability View Price

5SM2345-6KK01

5SM2345-6KK01

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RC unit for 5SY, 4-pole, type A, short-time delayed, In: 63 A, 30 mA, Un AC: 400 V

Differential block p / automatic 5SY of 70mm, type A (pulsating), 400V AC, 0.3... 63A, 4 poles, 30mA, K run (short delay). Cancelations and returns limited. Consult conditions.

 		3 View Availability View Price

5SM2646-0

5SM2646-0

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RC unit for 5SL4, 4-pole, type AC, In: 63 A, 300 mA, Un AC: 400 V

Differential block p/aut 5SL4 class AC 0.3-63A 4P 300MA. Cancelations and returns limited. Consult conditions.

 		3 View Availability View Price

5SM3645-0

5SM3645-0

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Residual current operated circuit breaker, 4-pole, type AC, In: 125 A, 300 mA, Un AC: 400 V

Differential switch, 70mm, class AC, 4 mode, 4 poles, 125A, 300mA. Cancelations and returns limited. Consult conditions.

 		3 View Availability View Price

5SM2627-0

5SM2627-0

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RC unit for 5SP4, 2-pole, type AC, In: 100 A, 300 mA, Un AC: 230 V

Differential block p/aut. 5SP4 access. curves B and C, class AC, 3.5mód., 2 poles, 80/100A, 300mA. Cancelations and returns limited. Consult conditions.

 		3 View Availability View Price

5SU1324-7FA10

5SU1324-7FA10

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RCBO, 10 kA, 2P, type A, 30 mA, C-Char, In: 10 A, Un AC: 230 V

 		3 View Availability View Price

5SU1324-7FA06

5SU1324-7FA06

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RCBO, 10 kA, 2P, type A, 30 mA, C-Char, In: 6 A, Un AC: 230 V

FI/LS-PROTECTOR TYPE A (PSE/SSF), D=70 MM IFN 30MA, 10KA,2-POLOS C 6A 3MW. Cancelations and returns limited. Consult conditions.

 		3 View Availability View Price

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