The Siemens 5SY4306-8CV is a 3-pole miniature circuit breaker with a D6 tripping characteristic and a rated ultimate breaking capacity (Icu) of 15 kA at 400 V AC. The D6 curve means the magnetic trip operates at 10–20× In (60–120 A per pole), designed for loads with high inrush — motor starters, transformers, or power supplies — where a B or C curve would nuisance-trip on startup.
Siemens 5SY4306-8CV MCB, 15 kA 400 V, 3P D6
MPN5SY4306-8CV
Siemens 5SY4306-8CV, MCB, Icu=15 kA 400 V, 3-pole, D6 characteristic.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Product details
Frequently asked questions
What is the breaking capacity of 5SY4306-8CV?
The rated ultimate breaking capacity (Icu) is 15 kA at 400 V AC, 3-pole configuration.
Where can I buy 5SY4306-8CV and how do I get a price?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ to get a firm price and lead time.
What does the D6 characteristic mean for this MCB?
The D6 curve trips magnetically at 10–20 times rated current (60–120 A per pole), making it suitable for loads with high inrush such as motors, transformers, or capacitor banks.
MPN
5SY4306-8CV