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Siemens 5SY5405-7CC — 4-Pole MCB (DIN Rail)

Siemens 5SY5405-7CC SENTRON MCB, 4-pole, C-curve, 0.5 A, 880

MPN5SY5405-7CC

Siemens SENTRON 5SY5CC series, miniature circuit breaker, 4-pole, C-curve, 0.5 A, 880 V DC, 10 kA breaking capacity, IP20, quick-assembly mounting.

Siemens 5SY5405-7CC datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY5405-7CC — Identification
ParameterValue
Type / order code5SY5CC
Brand nameSENTRON
Application suitabilityMechanical engineering / industry
5SY5405-7CC — Ratings
ParameterValue
Number of poles4
Pole configuration4P
Rated voltage, DC (max.)1 000 V
Voltage typeDC
5SY5405-7CC — Protection
ParameterValue
Tripping characteristic (trip curve)C
Overvoltage categoryII
Degree of protection (IP)IP20, with connected conductors
Neutral conductor switchingNo
Touch protectionYes
5SY5405-7CC — Mechanical
ParameterValue
Width in modular units4
Width72 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Mounting positionany
Combined terminal, topYes
Combined terminal, bottomYes
SealableYes
5SY5405-7CC — 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

The Siemens 5SY5405-7CC is a SENTRON 5SY5CC miniature circuit breaker rated 880 V DC with a 10 kA breaking capacity per IEC 60947-2, 4-pole, C-curve, 0.5 A.

Snaps onto DIN rail via the quick-assembly system; occupies 4 width units (72 mm wide, 90 mm high, 76 mm deep, 70 mm installation depth). Accepts solid or stranded conductors from 0.75 to 35 mm² — enough for the load side on a 0.5 A branch. Screw terminals torque to 2.5–3.5 N·m. IP20 with conductors connected; mount in any position. Combined terminals top and bottom simplify daisy-chaining.

Current-production part (lifecycle stage: current).

Frequently asked questions

What is the breaking capacity of 5SY5405-7CC?

10 kA at 880 V DC per IEC 60947-2 — enough for most industrial DC branch circuits.

What conductor sizes does 5SY5405-7CC accept?

Solid or stranded from 0.75 mm² up to 35 mm² — covers control wiring through feeder-sized conductors.

Where can I buy 5SY5405-7CC?

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

MPN
5SY5405-7CC