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Siemens 5SY5401-7CC — 4-Pole MCB (DIN Rail)

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

MPN5SY5401-7CC

Siemens SENTRON 5SY5401-7CC, miniature circuit breaker, 880 V DC, 10 kA, 4-pole, C-curve, 1 A.

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

Specifications

5SY5401-7CC — Identification
ParameterValue
Brand nameSENTRON
Application suitabilityMechanical engineering / industry
5SY5401-7CC — Ratings
ParameterValue
Number of poles4
Pole configuration4P
5SY5401-7CC — Protection
ParameterValue
Tripping characteristic (trip curve)C
Overvoltage categoryII
Pollution degree2
Degree of protection (IP)IP20, with connected conductors
5SY5401-7CC — 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
5SY5401-7CC — 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

Product details

DC-rated MCB for 880 V strings

The Siemens SENTRON 5SY5401-7CC is a 4-pole miniature circuit breaker rated for 880 V DC with a breaking capacity of 10 kA per IEC 60947-2. That 880 V DC rating makes it a fit for series-connected solar strings or DC bus sections where you need overcurrent protection at elevated DC voltages — not a standard 24 V or 48 V auxiliary breaker.

The quick-assembly fastening system and any-position mounting simplify panel layout — no orientation restrictions. IP20 with connected conductors is the protection class, so it belongs inside an enclosure, not exposed.

Halogen-free and silicon-free construction suits clean-room or sensitive electronics environments. Vibration resistance tested to IEC 60068-2-6 (±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz).

Frequently asked questions

What is the breaking capacity of 5SY5401-7CC at 880 V DC?

10 kA per IEC 60947-2 at 880 V DC. That is the interrupting rating for DC fault currents on a 4-pole series string.

Where can I buy 5SY5401-7CC?

Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.

Will 5SY5401-7CC drop into a panel specified for 5SY5416-7?

The 5SY5401-7CC shares the same 76 mm depth, 72 mm width, 90 mm height, and 4-pole DIN-rail footprint as the 5SY5416-7, so it fits the same panel cutout and rail spacing. The difference is the current rating — 1 A versus 16 A — and the DC-only voltage type (5SY5416-7 is AC/DC). Verify the load current and voltage type before substitution.

MPN
5SY5401-7CC