The thermal-magnetic trip unit is a TM210: fixed overload protection at 20 A (Ir = 20 A) and fixed short-circuit pickup at 16× In (320 A). That 16× multiplier is a fast magnetic response, so it clears hard faults quickly without nuisance tripping on motor inrush in most cases. The 'FTFM' designation means it's a fixed thermal, fixed magnetic trip — no field-adjustable dials. What you spec is what you get. The nut keeper kit and DC Power OEM marking indicate this variant was configured for a specific OEM build in China, but the base breaker is the standard 3VA1 platform.

Siemens 3VA1120-3ED32-0AA0-ZD00 3VA1 IEC Frame 160, 20A, 25k
Siemens 3VA1 IEC frame 160, breaking capacity class N, Icu=25kA @ 415V, 3-pole, line protection TM210, FTFM, In=20A, overload protection Ir=20A fixed, short-circuit protection Ii=16 x In, nut keeper kit for DC Power OEM in China.
Product details
Frequently asked questions
What is the breaking capacity of this breaker?
The ultimate breaking capacity (Icu) is 25 kA at 415 V AC, which is breaking capacity class N per IEC 60947-2.
What does TM210 mean on this breaker?
TM210 means a thermal-magnetic trip unit with fixed overload protection set at 20 A (Ir = 20 A) and fixed short-circuit pickup at 16 times the rated current (Ii = 16 × In).
Where can I buy the 3VA1120-3ED32-0AA0-ZD00?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.