The Siemens 5SP3732-0 is a 1-pole main conductor circuit-breaker from the SHU series, rated 32 A at 230/400 V. It protects a single phase of a main conductor circuit — think of it as the disconnect and overcurrent protection for a branch feeding a panel or a heavy load, not a branch-circuit MCB for final subcircuits. The 'E' characteristic means it's designed for cable and conductor protection in industrial installations, with a trip curve that handles inrush without nuisance tripping on motor or transformer starts.
Siemens 5SP3732-0 SHU Main Conductor Circuit-Breaker, 1-Pole
MPN5SP3732-0
Siemens SHU series, main conductor circuit-breaker, 1-pole, E 32 A, 230/400 V, order code 5SP3732-0.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Product details
Frequently asked questions
Where can I buy 5SP3732-0 and how do I get a price?
5SP3732-0 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.
What is 5SP3732-0's listed description?
The listed description is MAIN CONDUCTOR CIRCUIT-BREAKER (SHU), 1-POLE, E 32 A, 230/400 V.
MPN
5SP3732-0