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Siemens 5SY7402-7CC — 4-Pole MCB (DIN Rail)

Siemens 5SY7402-7CC SENTRON MCB, 4P, 2A, C-Curve, 50kA IEC

MPN5SY7402-7CC

Siemens SENTRON 5SY7402-7CC, 4-pole miniature circuit breaker, 2 A rated current, C tripping characteristic, 50 kA breaking capacity per IEC 60947-2, 400 V AC.

Siemens 5SY7402-7CC datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SY7402-7CC — Identification
ParameterValue
Type / order code5SY7CC
Brand nameSENTRON
Application suitabilityMechanical engineering / industry
5SY7402-7CC — Ratings
ParameterValue
Number of poles4
Pole configuration4P
Rated current (In), AC400 V
Rated current (In), AC2 A
Rated voltage, AC (multi-phase)440 V
Rated voltage, AC (single-phase)440 V
Rated voltage, DC (max.)72 V
Voltage typeAC
Rated frequency50/60 Hz
5SY7402-7CC — Protection
ParameterValue
Tripping characteristic (trip curve)C
Rated breaking capacity, per IEC 60947-250 kA
Breaking capacity, AC (UL 1077 / CSA C22.2 No.235)5 kA
Overvoltage categoryIII
Degree of protection (IP)IP20, with connected conductors
Neutral conductor switchingNo
Touch protectionYes
5SY7402-7CC — Mechanical
ParameterValue
Width in modular units4
Width72 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Mounting positionany
Combined terminal, topYes
Combined terminal, bottomYes
SealableYes
5SY7402-7CC — 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
5SY7402-7CC — Performance
ParameterValue
Mechanical service life (switching cycles, typ.)10 000

Product details

The Siemens 5SY7402-7CC is a 4-pole miniature circuit breaker from the SENTRON 5SY7CC design series, rated 2 A at 400 V AC with a C tripping characteristic.

Wire range and terminal details for the panel builder

Combined terminals at both top and bottom simplify busbar or daisy-chain wiring. The breaker is sealable, which helps if the panel requires tamper-evident metering or lockout-tagout compliance.

Breaking capacity and standards coverage

For UL 1077 and CSA C22.2 No. 235 (North American supplementary protector recognition), the rating is 5 kA. If your panel requires UL 489 listing (branch circuit protection), this part does not carry it; it's a supplementary protector under UL 1077. The 72 V DC maximum rating means it can also serve in DC control circuits up to that voltage, though the DC breaking capacity is not separately stated here.

Frequently asked questions

Where can I buy 5SY7402-7CC and how do I get a price?

The part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current pricing and availability — no stock or lead-time figures are published here.

What is the closest functional second-source for 5SY7402-7CC?

The 5SY6602-8 is a 4-pole, 2 A, C-curve MCB from the same SENTRON family but from an earlier 5SY6 series. It shares the same pole count, current rating, and tripping characteristic, but the 5SY7402-7CC offers a higher 50 kA IEC breaking capacity versus the 5SY6 series' typical 25 kA. Verify the required SCCR before substituting — the 5SY6602-8 may not coordinate at the same fault level.

What is 5SY7402-7CC's listed depth?

The overall depth is 76 mm, with an installation depth of 70 mm (the portion that sits inside the panel behind the DIN rail).

What is 5SY7402-7CC's listed solid wire range?

Solid conductors from 0.75 mm² up to 35 mm² are accepted at the terminals.

Will 5SY7402-7CC drop into a panel specified around 5SY6602-8 without rewiring?

Both are 4-pole, 72 mm wide (4 width units) DIN-rail MCBs with the same terminal wire range (0.75–35 mm² solid/stranded), so the physical footprint and wiring connections are identical. The main difference is the higher 50 kA IEC breaking capacity on the 5SY7402-7CC versus the 5SY6602-8's typical 25 kA — no rewiring needed, but verify the fault level coordination study still holds.

What compliance documentation does Siemens provide for 5SY7402-7CC?

The breaker carries IEC 60947-2 certification (50 kA rating), UL 1077 and CSA C22.2 No. 235 supplementary protector recognition (5 kA), and is halogen-free and silicon-free. Standard Siemens documentation includes the declaration of conformity (CE/UKCA), RoHS and REACH compliance statements, and the product datasheet. Contact your Siemens channel partner or request the documentation package with your RFQ.

MPN
5SY7402-7CC