The Siemens 3VA1163-5MH32-0AG0 is a 3-pole IEC molded case circuit breaker on a 160 A frame, rated for 63 A continuous current (In) with a TM120M thermal-magnetic trip unit. Its breaking capacity class M delivers Icu=55kA @ 415V AC — enough to interrupt high fault currents typical in industrial distribution panels without upstream coordination failure. The TM120M provides magnetic-only short-circuit protection adjustable from 5 to 15 times In (Ii=5...15 x In), with no built-in overload protection; that function is handled by a separate starter or overload relay downstream. The nut keeper kit, one auxiliary switch (HP), and one trip alarm switch (HP) are factory-fitted accessories, saving panel build time.

Siemens 3VA1163-5MH32-0AG0 Circuit Breaker, 55kA @ 415V, 63A
Siemens 3VA1 series, IEC frame 160, breaking capacity class M, Icu=55kA @ 415V, 3-pole, starter protection TM120M, AM, In=63A, without overload protection, short-circuit protection Ii=5...15 x In, nut keeper kit, 1 auxiliary switch HP, 1 trip alarm switch HP.
Product details
Frequently asked questions
What is the breaking capacity of this breaker?
The 3VA1163-5MH32-0AG0 has an ultimate breaking capacity (Icu) of 55 kA at 415 V AC, placing it in breaking capacity class M on the 160 A IEC frame.
Does this breaker include overload protection?
No. The TM120M trip unit provides magnetic-only short-circuit protection (Ii adjustable 5...15 x In). Overload protection must be provided by a separate starter or overload relay downstream.
Where can I buy 3VA1163-5MH32-0AG0 and how is it quoted?
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 for a firm commercial offer.