Skip to main content
Log in
Siemens 5SY5401-7 — 4-Pole MCB (DIN Rail)

Siemens 5SY5401-7 SENTRON MCB, 4P C 1A, 10kA, 880VDC

MPN5SY5401-7
Active

Siemens SENTRON 5SY5401-7, 4-pole miniature circuit breaker, C tripping characteristic, 1 A rated current, 10 kA breaking capacity per IEC/EN 60898-2 and UL1077.

Siemens 5SY5401-7 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY5401-7 — Identification
ParameterValue
Brand nameSENTRON
Application suitabilityuniversal current
5SY5401-7 — Ratings
ParameterValue
Number of poles4
Pole configuration4P
Rated current (In), AC1 A
Rated voltage, AC (multi-phase)440 V
Rated voltage, AC (single-phase)440 V
5SY5401-7 — Protection
ParameterValue
Tripping characteristic (trip curve)C
Energy limitation class3
Overvoltage categoryII
Pollution degree2
Degree of protection (IP)IP20, with connected conductors
Touch protectionYes
5SY5401-7 — Mechanical
ParameterValue
Width in modular units4
Width72 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Fastening / mounting methodQuick assembly system
Mounting positionany
Combined terminal, topYes
Combined terminal, bottomYes
Tightening torque, max.75 °C
Tightening torque, min.-40 °C
SealableYes
5SY5401-7 — Environmental
ParameterValue
Halogen-freeYes
Silicone-freeYes
Influence of ambient temperature (derating)max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C
5SY5401-7 — Performance
ParameterValue
Mechanical service life (switching cycles, typ.)10 000

Product details

It clears faults at 10 kA under both AC (per IEC/EN 60898) and DC (per IEC/EN 60898-2) conditions, with a DC voltage rating of 880 V. The dual standard listing — IEC/EN 60898-2 for DC and UL1077 for North American supplementary protection — means it carries approvals for both European and US panels without a separate part number.

The 1 A rating is a low-current branch, typical for control circuits or instrumentation feeds. The 4-pole design switches all four conductors (, L2, L3, N) in a single module, saving DIN rail space compared to ganging four single-pole breakers. At 4 modular units wide (72 mm), it fits standard 18 mm-per-module DIN-rail panels.

The terminals accept combined top and bottom wiring; the unit is sealable for panel-lockout procedures.

Frequently asked questions

What is the breaking capacity of the 5SY5401-7?

10 kA per IEC/EN 60898 for AC circuits, and 10 kA per IEC/EN 60898-2 for DC circuits up to 880 V DC.

What compliance documentation is available for the 5SY5401-7?

The breaker carries dual certification: IEC/EN 60898-2 for DC applications and UL1077 for North American supplementary protection. It is halogen-free and silicon-free, which supports RoHS and REACH compliance claims.

How do I get pricing and availability for the 5SY5401-7?

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

MPN
5SY5401-7