Skip to main content
Log in
Siemens 3VA1163-5MH32-0BH0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1163-5MH32-0BH0 Circuit Breaker, 63A, 55kA @ 415V

MPN3VA1163-5MH32-0BH0

Siemens 3VA1 IEC frame 160 circuit breaker, 3-pole, breaking capacity class M, Icu=55kA @ 415V, In=63A, starter protection TM120M, undervoltage release 24V DC, 2 auxiliary switches HQ, 1 trip alarm switch HQ, nut keeper kit.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Product details

The Siemens 3VA1163-5MH32-0BH0 is a 3-pole IEC frame 160 molded-case circuit breaker with a 63 A rating and a 55 kA breaking capacity at 415 V (class M). The TM120M thermal-magnetic trip unit provides starter protection: the thermal element tracks motor heating, the magnetic pickup is adjustable 5–15 x In for short-circuit-only protection (no overload function on this variant). The built-in undervoltage release (UVR) at 24 V DC drops the breaker on control-voltage loss — typical for emergency-stop or safety circuits where a voltage-monitored coil holds the mechanism closed.

Deployment context — where this lands in a panel

The nut keeper kit holds the busbar or cable lugs in place during vibration — a detail that matters on machine-tool or conveyor panels where transport rattles loosen terminations. The two auxiliary switches HQ and the trip alarm switch HQ give the PLC or safety relay a dry-contact status: one NO/NC pair for breaker position, one for fault trip. The 24 V DC UVR coil pulls about the same inrush as a small relay; verify your 24 V DC supply can hold the dropout threshold (typically 70–35 % of rated voltage) without browning out other loads on the same loop.

Frequently asked questions

Where can I buy 3VA1163-5MH32-0BH0 and how do I get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time, not from a static listing.

What is the 55 kA breaking capacity at 415 V mean for panel design?

The Icu=55 kA @ 415 V means this breaker can safely interrupt fault currents up to 55,000 A at that voltage without failing — the key figure for meeting the panel's short-circuit current rating (SCCR) under IEC 60947-2. Class M is a medium breaking capacity tier, suitable for most industrial distribution panels where the prospective fault current stays under that threshold.

What is the difference between this variant and a standard 3VA1 with overload protection?

This variant (TM120M, AM) provides short-circuit protection only — the magnetic trip adjusts 5–15 x In, but there is no thermal overload element. It is designed for starter protection where the motor overload relay handles the running overcurrent, and the breaker only clears faults. A standard 3VA1 with a TM trip includes both thermal and magnetic elements for combined overload and short-circuit protection.

MPN
3VA1163-5MH32-0BH0