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Siemens 5SL3425-7MB — 4-Pole MCB (DIN Rail)

Siemens 5SL3425-7MB SENTRON MCB, 4P C-Char 25 A, 4.5 kA

MPN5SL3425-7MB

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Siemens SENTRON 5SL3 series miniature circuit breaker, 4-pole, C-characteristic, 25 A rated current, 4.5 kA breaking capacity, 400 V AC.

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Siemens 5SL3425-7MB datasheet (PDF)

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL3425-7MB — Identification
Parameter	Value
Type / order code	5SL3
Brand name	SENTRON
Application suitability	Residential buildings/infrastructure

5SL3425-7MB — Ratings
Parameter	Value
Number of poles	4
Pole configuration	4P
Rated current (In), AC	25 A
Rated voltage, AC (multi-phase)	440 V
Rated voltage, DC (max.)	72 V
Voltage type	AC
Rated frequency	50 Hz

5SL3425-7MB — Protection
Parameter	Value
Tripping characteristic (trip curve)	C
Rated breaking capacity (Icn), per EN 60898	4.5 kA
Rated breaking capacity, per IEC 60947-2	4.5 kA
Overvoltage category	3
Pollution degree	2
Degree of protection (IP)	IP20, with connected conductors
Neutral conductor switching	No
Touch protection	Yes

5SL3425-7MB — Mechanical
Parameter	Value
Width in modular units	4
Width	72 mm
Height	90 mm
Depth	76 mm
Installation depth	70 mm
Mounting position	any
Tightening torque, max.	75 °C
Tightening torque, min.	-40 °C
Sealable	Yes

5SL3425-7MB — Environmental
Parameter	Value
Halogen-free	Yes
Silicone-free	Yes

5SL3425-7MB — Performance
Parameter	Value
Mechanical service life (switching cycles, typ.)	20 000

Product details

The Siemens 5SL3425-7MB is a SENTRON 5SL3 miniature circuit breaker — a 4-pole (4P) unit with a C tripping characteristic, rated 25 A at 400 V AC. It protects final circuits in residential and infrastructure installations, clearing faults up to 4.5 kA.

The 4-pole design switches all four phases simultaneously; neutral conductor switching is not built in (: No), so the neutral is solidly connected. Mechanical endurance is 20 000 switching cycles typical — fine for branch protection where the breaker operates infrequently.