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Siemens 5SP4480-8 — Miniature Circuit Breakers (MCB)

Siemens 5SP4480-8 SENTRON MCB, 4P D 80A 10kA

MPN5SP4480-8
Active

Siemens SENTRON 5SP4480-8, miniature circuit breaker, 4-pole, D tripping characteristic, 80 A, 10 kA breaking capacity at 400 V AC per EN 60898, 440 V AC multi-phase, 6 MW units, DIN rail and screw fixing.

Siemens 5SP4480-8 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

5SP4480-8 — Ratings
ParameterValue
Overvoltage category3
5SP4480-8 — Mechanical
ParameterValue
Width108 mm
Height90 mm
Depth76 mm

Product details

80 A D-curve MCB for motor and transformer circuits

The D-curve (10–20× In magnetic trip) avoids nuisance tripping on startup surges, so this is the right choice for a motor branch circuit or a large power supply feed, not a general lighting panel.

Snaps onto DIN rail or accepts screw fixing — both methods are rated, so you can use whichever your panel shop prefers. At 6 modular width units (108 mm wide), it occupies six 18 mm slots on the rail. The tunnel terminals top and bottom accept conductors up to the usual MCB range; position of the supply cord is any, so line/load orientation is flexible.

Environmental and service conditions

Shock and vibration resistance per IEC 60068-2-27 and -6 are specified, so it holds up on machinery subject to moderate impacts.

Frequently asked questions

Will 5SP4480-8 drop into a panel specified around 5SP4380-7 without rewiring?

Both are 4-pole SENTRON 5SP series MCBs on the same DIN-rail footprint with tunnel terminals, so mechanical fit is identical. The difference is the rating: 5SP4480-8 is 80 A D-curve, while 5SP4380-7 is a different current/curve variant. If the panel was wired for a lower-rated MCB, the conductors and upstream protection must be verified for the 80 A load before substitution.

What is the breaking capacity of 5SP4480-8?

10 kA at 400 V AC per EN 60898, with a multi-phase AC rated voltage of 440 V. This is the standard breaking capacity for industrial distribution boards; for higher fault currents you would need a current-limiting upstream device or a higher-rated MCB series.

Where can I buy 5SP4480-8?

This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm landed-cost picture.

MPN
5SP4480-8