The Siemens 3VA1120-4EE32-0AA0-ZD00 is a 3-pole IEC frame 160 circuit breaker in the 3VA1 series, rated 20 A with a breaking capacity class S — Icu of 36 kA at 415 V. That 36 kA SCCR at 415 V means it safely interrupts fault currents up to that level without cascading upstream, critical for panel coordination in industrial distribution. The thermal-magnetic TM220 trip unit provides adjustable overload protection (Ir = 14 A…20 A) and fixed short-circuit protection (Ii = 16 x In). This variant includes a nut keeper kit specified for a DC Power OEM in China, so verify the mounting kit matches your panel hardware before committing the BOM line.

Siemens 3VA1120-4EE32-0AA0-ZD00 Circuit Breaker, 20A, 36kA @
Siemens 3VA1 series, IEC frame 160, breaking capacity class S, 3-pole, 20A, Icu=36kA @ 415V, TM220 thermal-magnetic trip, ATFM, Ir=14A…20A, Ii=16 x In, with nut keeper kit for DC Power OEM in China.
Product details
Frequently asked questions
Where can I buy 3VA1120-4EE32-0AA0-ZD00 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.
What is the breaking capacity of this circuit breaker?
It has a breaking capacity class S with Icu = 36 kA at 415 V, meaning it safely interrupts fault currents up to that level.
What are the adjustable trip settings on the 3VA1120-4EE32-0AA0-ZD00?
The TM220 thermal-magnetic trip provides adjustable overload protection Ir = 14 A…20 A and fixed short-circuit protection Ii = 16 x In.