The Siemens 5SY4201-8CV is a 2-pole miniature circuit breaker (MCB) with a D1 tripping characteristic, rated for a short-circuit breaking capacity (Icu) of 15 kA at 400 V AC. The 15 kA Icu rating at 400 V tells you it can safely interrupt a fault current up to that level on a 400 V line, which covers most industrial and commercial panel secondary feeds.
Siemens 5SY4201-8CV MCB, 15kA Icu 400V 2P D1
MPN5SY4201-8CV
Siemens 5SY MCB, 2-pole D1 curve, Icu=15kA at 400V, order code 5SY4201-8CV.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Product details
Frequently asked questions
What is the breaking capacity of the 5SY4201-8CV?
The 5SY4201-8CV has a rated short-circuit breaking capacity (Icu) of 15 kA at 400 V AC, 2-pole configuration with a D1 characteristic.
Where can I buy the 5SY4201-8CV?
The 5SY4201-8CV is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at the time of quotation — submit an RFQ for a firm commitment.
MPN
5SY4201-8CV