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Siemens 5SL6425-6RC — 4-Pole MCB (DIN Rail)

Siemens 5SL6425-6RC SENTRON MCB, 25A 4P B-Char 7.5kA

MPN5SL6425-6RC
Active

Siemens SENTRON 5SL6 series, miniature circuit breaker, order code 5SL6425-6RC, 25 A rated current, 4-pole, B tripping characteristic, 7.5 kA breaking capacity per EN 60898.

Siemens 5SL6425-6RC datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SL6425-6RC — Identification
ParameterValue
Type / order code5SL6
Brand nameSENTRON
Application suitabilityResidential buildings/infrastructure
5SL6425-6RC — Ratings
ParameterValue
Number of poles4
Pole configuration4P
Rated voltage, AC (multi-phase)440 V
Rated voltage, AC (single-phase)250 V
Rated voltage, DC (max.)72 V
Voltage typeAC
Rated frequency50
5SL6425-6RC — Protection
ParameterValue
Tripping characteristic (trip curve)B
Rated breaking capacity (Icn), per EN 608987.5 kA
Overvoltage category3
Pollution degree2
Degree of protection (IP)IP20, with connected conductors
Neutral conductor switchingNo
Touch protectionYes
5SL6425-6RC — Mechanical
ParameterValue
Width in modular units4
Width72 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Mounting positionany
Tightening torque, max.75 °C
Tightening torque, min.-40 °C
SealableYes
5SL6425-6RC — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
5SL6425-6RC — Performance
ParameterValue
Mechanical service life (switching cycles, typ.)10 000

Product details

The Siemens 5SL6425-6RC is a SENTRON 5SL6 miniature circuit breaker rated 25 A at 415 V AC, 4-pole, with a B tripping characteristic and a 7.5 kA breaking capacity per EN 60898. Four poles (4P) switch all four conductors — three phases plus neutral — so it's sized for a three-phase supply where the neutral needs overcurrent protection.

Where it goes — deployment context

This MCB is designed for residential buildings and infrastructure — think distribution boards in apartment blocks, small commercial premises, or utility sub-mains.

Frequently asked questions

Where can I buy 5SL6425-6RC and what is the lead time?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm delivery commitment.

What is the breaking capacity of 5SL6425-6RC?

The breaking capacity is 7.5 kA per EN 60898 at 415 V AC. That's the maximum fault current the MCB can safely interrupt under standard test conditions.

What are the physical dimensions of 5SL6425-6RC?

The MCB measures 72 mm wide (4 width units), 90 mm high, and 76 mm deep (70 mm installation depth). Fits standard DIN-rail enclosures.

Will 5SL6425-6RC drop into a panel specified around 5SL4120-7CC?

Both are SENTRON 5SL series MCBs with the same 4-pole DIN-rail footprint, so physical fit is identical. The difference is rating: 5SL6425-6RC is 25 A B-characteristic 7.5 kA; 5SL4120-7CC is a different rating and characteristic. Verify the branch circuit's ampacity and fault level before swapping — the mechanical swap is straightforward, but the electrical ratings must match the design.

MPN
5SL6425-6RC