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Siemens 5SY5402-7CC — Miniature Circuit Breakers (MCB)

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)
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

5SY5402-7CC — Ratings
ParameterValue
Overvoltage categoryII
5SY5402-7CC — Mechanical
ParameterValue
Width72 mm
Height90 mm
Depth76 mm

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