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Siemens 5SP4492-6 — Miniature Circuit Breakers (MCB)

Siemens 5SP4492-6 SENTRON MCB, 4P B 125A 10kA

MPN5SP4492-6
Active

Siemens SENTRON 5SP series, miniature circuit breaker, 4-pole, B characteristic, 125 A, 10 kA breaking capacity, 400/440 V AC, 6 MW wide, DIN rail mount.

Siemens 5SP4492-6 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

5SP4492-6 — Ratings
ParameterValue
Overvoltage category3
5SP4492-6 — Mechanical
ParameterValue
Width108 mm
Height90 mm
Depth76 mm

Product details

125 A, 4-pole B-curve MCB — what the ratings mean

The Siemens SENTRON 5SP4492-6 is a 4-pole miniature circuit breaker with a B tripping characteristic, rated 125 A at 400 V AC with a 10 kA breaking capacity per EN 60898. At 125 A per pole this covers heavy branch circuits like large lighting banks, distribution sub-feeds, or resistive heating loads.

Snaps onto DIN rail or accepts screw fixing, so it integrates into standard distribution boards or industrial enclosures. At 6 modular width units (108 mm wide) and 70 mm installation depth, it occupies the same footprint as other 4-pole 125 A SENTRON breakers — no surprise when swapping into an existing panel layout. Mounting position is unrestricted, which simplifies layout in tight cabinets.

IP20 with connected conductors; IP40 at the handle area with a distribution cover. The -40 °C to +75 °C operating range covers outdoor enclosures in cold climates. Sealable design allows lockout-tagout for isolation procedures.

Frequently asked questions

What is the breaking capacity of 5SP4492-6?

10 kA per EN 60898 at 400 V AC. That is the standard interrupting rating for this class of MCB — adequate for most commercial and light industrial distribution boards where the prospective fault current stays under 10 kA.

Where can I buy 5SP4492-6 and how is it quoted?

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

Will 5SP4492-6 drop into a panel designed for 5SP4380-7?

Both are 4-pole SENTRON 5SP breakers on the same DIN-rail footprint, so the mechanical fit is identical. The difference is rating: 5SP4492-6 is 125 A B-curve, while 5SP4380-7 is a lower-current variant. Verify the load current and coordination study before swapping.

What compliance documentation is available for 5SP4492-6?

The SENTRON 5SP series carries CE marking and is designed to EN 60898. Halogen-free and silicon-free per the spec. For specific UL, CSA, or REACH declarations, request the manufacturer's compliance package at quote time.

MPN
5SP4492-6