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Siemens 5SY7425-7 — Miniature Circuit Breakers (MCB)

Siemens 5SY7425-7 SENTRON MCB, 4P C-curve, 15/25 kA, 76 mm

MPN5SY7425-7
Active

Siemens SENTRON 5SY7425-7, 4-pole miniature circuit breaker, C-curve, 15 kA (EN 60898) / 25 kA (IEC 60947-2), 400 V AC, 76 mm depth.

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

5SY7425-7 — Ratings
ParameterValue
Overvoltage categoryIII
5SY7425-7 — Mechanical
ParameterValue
Width72 mm
Height90 mm
Depth76 mm

Product details

The 5SY7425-7: Breaking capacity is 15 kA per EN 60898 and 25 kA per IEC 60947-2 at 400 V AC; on DC circuits it interrupts 15 kA at 72 V max. For a UL 1077 listing (supplementary protector duty), the interrupting rating is 5 kA. That's typical for North American branch-circuit applications where the upstream breaker already provides primary fault clearance.

At 76 mm deep, 72 mm wide (4 modular width units), and 90 mm tall, it fits standard DIN-rail enclosures. The 70 mm installation depth gives you a bit of clearance behind the busbar. Combined top and bottom terminals simplify daisy-chaining — no need to re-terminate the supply side when adding downstream breakers. Neutral conductor is not switched internally (4-pole means all four poles are live/phase, no switched neutral). If you need a switched neutral, this isn't the variant — look at the 4-pole with neutral switching in the same family. The sealable option (yes) lets a panel builder lock the toggle position after commissioning, which keeps unauthorized hands off the trip setting.

Frequently asked questions

What is the closest functional alternative to 5SY7425-7?

The 5SY4140-7 is a 4-pole C-curve MCB in the same SENTRON family, but verify the breaking capacity and pole configuration against your panel's fault current requirements — the 5SY7425-7 carries a higher 25 kA IEC 60947-2 rating, which may be the deciding factor for industrial coordination.

Will 5SY7425-7 fit in a panel designed for 5SY4140-7?

Yes, both are 4-pole, 4-module-width SENTRON breakers with the same 72 mm width and DIN-rail mounting, so they swap without rewiring as long as the busbar and terminal arrangements match.

What compliance documentation does 5SY7425-7 carry?

It is certified to IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, and CSA C22.2 No.235. The part is halogen-free and silicon-free, which matters for clean-room or corrosive-environment installations.

How do I get current pricing and availability for 5SY7425-7?

Submit an RFQ through this listing — availability and current pricing are confirmed at quote time through independent distribution channels. This is an active-production part, so lead times are typically standard for the SENTRON line.

MPN
5SY7425-7