Skip to main content
Siemens 5SP4350-7 — 2-Pole MCB (DIN Rail)

SENTRON 5SP4350-7 Miniature Circuit Breaker, 3-Pole, C, 50A

MPN5SP4350-7

SENTRON, 5SP Miniature circuit breakers, 5SP4350-7, 3-pole, C-curve, 50 A, 400 V AC, 10 kA (EN 60898) / 20 kA (IEC 60947-2).

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

5SP4350-7 — Identification
ParameterValue
Product designationMiniature circuit breaker
Brand nameSENTRON
5SP4350-7 — Electrical
ParameterValue
Number of poles3
5SP4350-7 — Protection
ParameterValue
Tripping characteristic classC
5SP4350-7 — Mechanical
ParameterValue
Installation depth70 mm
5SP4350-7 — Other specifications
ParameterValue
Tunnel terminals topYes
Design of the product5SP Miniature circuit breakers
Number of poles (Note)2P
Tunnel terminals bottomYes
Circuit-breaker (Design)5SP4
Current (at AC)50 A
Acc. to EN 60898 / rated value10 kA
Acc. to IEC 60947-2 / rated value20 kA
Supply voltage (at AC)400 V

Product details

What this 3-pole C-curve MCB delivers

The SENTRON 5SP4350-7 is a 3-pole miniature circuit breaker from the 5SP4 design series, rated 50 A at 400 V AC with a C tripping characteristic. The C-curve means it tolerates moderate inrush currents — typical for motor, transformer, and lighting loads — before tripping magnetically on short-circuit.

Frequently asked questions

Where can I buy 5SP4350-7 and how do I get a price?

The 5SP4350-7 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What is 5SP4350-7's closest functional second-source — 5SL4363-7?

The 5SL4363-7 is the closest peer in the SENTRON family: also 3-pole, C-curve, 400 V AC, 70 mm installation depth, and 10 kA breaking capacity per EN 60898. The key difference is the 5SL4363-7 is rated 63 A versus the 5SP4350-7's 50 A, and its IEC 60947-2 breaking capacity is 10 kA (not 20 kA). Both use tunnel terminals and occupy three modular width units, so the 5SL4363-7 drops into the same panel footprint without rewiring — just verify the higher ampacity matches the circuit protection requirements.

Will 5SP4350-7 drop into a panel that was specified around 5SL4363-7 without rewiring?

Yes — both share the same 70 mm installation depth, 3-pole DIN-rail footprint, tunnel terminals, and 400 V AC rating. The swap is mechanical and electrical drop-in, provided the 50 A rating of the 5SP4350-7 is adequate for the load.

What compliance documentation does SENTRON provide for 5SP4350-7?

The 5SP4350-7 is designed and tested to EN 60898 (10 kA breaking capacity) and IEC 60947-2 (20 kA breaking capacity). As a SENTRON-branded Siemens product, standard compliance documentation including CE declaration of conformity and manufacturer's test certificates is available. Specific RoHS/REACH status should be confirmed at order time through the supplier.

MPN
5SP4350-7