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Siemens 5SY5402-7CC — 4-Pole MCB (DIN Rail)

Siemens 5SY5402-7CC SENTRON MCB, 880 V DC, 10 kA, 4P, C, 2A

MPN5SY5402-7CC

Siemens SENTRON 5SY5402-7CC, 4-pole DC miniature circuit breaker, C-curve, 2 A, 880 V DC rated / 1000 V DC max, 10 kA breaking capacity per IEC 60947-2, IP20, 4 width units.

Siemens 5SY5402-7CC datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY5402-7CC — Identification
ParameterValue
Type / order code5SY5CC
Brand nameSENTRON
Application suitabilityMechanical engineering / industry
5SY5402-7CC — Ratings
ParameterValue
Number of poles4
Pole configuration4P
Rated voltage, DC (max.)1 000 V
Voltage typeDC
5SY5402-7CC — Protection
ParameterValue
Tripping characteristic (trip curve)C
Overvoltage categoryII
Degree of protection (IP)IP20, with connected conductors
Neutral conductor switchingNo
Touch protectionYes
5SY5402-7CC — Mechanical
ParameterValue
Width in modular units4
Width72 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Mounting positionany
Combined terminal, topYes
Combined terminal, bottomYes
SealableYes
5SY5402-7CC — 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

It carries an 880 V DC rated voltage (1000 V DC maximum) and a 10 kA DC breaking capacity tested to IEC 60947-2 — the standard for industrial DC fault interruption.

Four poles in a 72 mm wide housing (4 width units at 18 mm each) snap onto the DIN rail via the quick-assembly system and accept conductors from 0.75 to 35 mm² solid or stranded. The combined terminal at top and bottom simplifies daisy-chaining the DC bus. Installation depth is 70 mm plus the 76 mm overall depth; plan for finger clearance on the toggle and the sealable cover if the panel door closes tight.

Frequently asked questions

What is the DC voltage rating and breaking capacity of this breaker?

Rated 880 V DC with a maximum of 1000 V DC. The DC breaking capacity is 10 kA per IEC 60947-2, which covers the full prospective short-circuit current at the rated voltage.

What conductor sizes does the 5SY5402-7CC accept?

Solid or stranded conductors from 0.75 mm² up to 35 mm². The screw-type terminals require a tightening torque of 2.5 to 3.5 N·m (22 to 31 lbf·in).

Where can I buy 5SY5402-7CC and how is it quoted?

Sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — no stock count or price is published here.

Will 5SY5402-7CC drop into a panel specified around 5SY5416-7?

The 5SY5402-7CC shares the same 4-pole, 72 mm wide footprint and SENTRON 5SY5CC platform as the 5SY5416-7, so mechanical fit and bus-bar alignment are identical. The difference is the current rating — 2 A here versus 16 A on the sibling — so verify the load's ampacity before swapping.

MPN
5SY5402-7CC