SENTRON 3VA1 MCCB — 32 A, 3-pole, TM240, Shunt Trip
The Siemens 3VA1132-5EF32-0HA0 is a SENTRON 3VA1 series molded case circuit breaker (MCCB) rated for 32 A continuous at 40 °C, with a 3-pole configuration and a TM240 thermal-magnetic overcurrent release. It is designed for line protection in distribution panels and switchgear assemblies, with an 800 V rated insulation voltage and a maximum power loss of 10.6 W. The TM240 release provides fixed thermal and magnetic trip settings for overload and short-circuit protection, with the magnetic pickup calibrated to 240 A (7.5× In). The integrated shunt trip (STL) allows remote tripping via a control voltage, enabling emergency-off or interlock functions without an external undervoltage release.
Breaking Capacity — Rated for High-Fault Distribution
This MCCB delivers 187 kA interrupting capacity at 240 V AC, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V. The 187 kA rating at 240 V makes it suitable for high-fault-capacity main breakers in industrial panelboards or as a feeder breaker downstream of large transformers — it clears a bolted fault without cascading upstream. At 415 V (common IEC distribution voltage), the 121 kA rating covers most utility-side fault levels in commercial and light industrial installations. The drop to 17 kA at 500 V and 690 V is typical for MCCBs in this frame size — confirm the available fault current at the point of installation if used on 690 V systems.
Thermal Derating — 32 A Continuous, Stable to 70 °C
Rated 32 A from 40 °C through 50 °C ambient, the 3VA1132-5EF32-0HA0 derates to 31 A at 55–60 °C and 30 A at 65–70 °C. The flat 32 A band up to 50 °C gives headroom in a typical 40 °C panel environment — no need to upsize the frame for a 32 A load unless ambient exceeds 50 °C. Operating temperature range is -25 °C to +70 °C, with storage from -40 °C to +80 °C. The -25 °C lower limit suits unheated electrical rooms in temperate climates; for cold storage or outdoor enclosures below -25 °C, verify the ambient at the breaker location.
Panel Fit — 3-Pole, 76.2 mm Wide, Shunt Trip
The 3VA1 frame measures 76.2 mm wide (3 inches), 130 mm tall, and 70 mm deep — a standard 3-pole MCCB footprint that mounts on a DIN rail or bolts directly to a panel backplate. The 70 mm depth clears most 200 mm deep enclosures with room for wiring gutters. The shunt trip (STL) release occupies the auxiliary slot on the right side of the breaker. It requires a separate control voltage (typically 110–240 V AC/DC, verify from the shunt trip coil rating) and a maintained signal to hold the breaker closed — loss of control voltage trips the breaker. No undervoltage release is fitted, so the breaker latches mechanically without control power.
Lifecycle & Sourcing — Active Production, Quoted to Order
For BOM freeze or multi-year spares planning, this part is a standard catalog item with no imminent phase-out signal. If a second-source or alternate form-fit-function replacement is needed, the closest peer in the same 3VA1 family is the 3VA1110-5ED32-0AA0 (lower frame rating, different release) — but the 3VA1132-5EF32-0HA0 is the primary target for this order code.