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Siemens 3VA1125-4EF32-0HC0 — Molded Case Circuit Breakers (MCCB)

Siemens SENTRON 3VA1125-4EF32-0HC0 MCCB, 25 A, 3-Pole, 121 k

MPN3VA1125-4EF32-0HC0

Siemens SENTRON 3VA1125-4EF32-0HC0, Molded case circuit breaker, 3-pole, 25 A rated continuous current, 121 kA breaking capacity at 240 V, line protection version with TM240 overcurrent release and shunt trip.

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

Specifications

3VA1125-4EF32-0HC0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Product versionLine protection
Integrated auxiliary / alarm switch ref.3VA9988-0AA12
3VA1125-4EF32-0HC0 — Ratings
ParameterValue
Number of poles3
Current at 40 °C25 A
Current at 45 °C25 A
Current at 50 °C25 A
Current at 55 °C24 A
Current at 60 °C23.5 A
Current at 65 °C23 A
Current at 70 °C22.5 A
Switching capacity classS
Breaking capacity at 240 V121 kA
Breaking capacity at 415 V75.6 kA
Breaking capacity at 440 V52.5 kA
Breaking capacity at 690 V11.9 kA
3VA1125-4EF32-0HC0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
3VA1125-4EF32-0HC0 — Construction & Connection
ParameterValue
Main circuit connection typelug terminal
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1125-4EF32-0HC0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerYes
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts2
3VA1125-4EF32-0HC0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1125-4EF32-0HC0 — Mechanical
ParameterValue
Height130 mm
Width76.2 mm
Depth70 mm

Product details

It's the line protection version, meaning its primary job is protecting cable and bus from overloads and short circuits in a distribution panel — not motor protection, not generator protection. The TM240 overcurrent release is a thermal-magnetic unit: the thermal element handles sustained overloads, the magnetic element clears high-current faults fast.

This MCCB carries a 121 kA breaking capacity at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V. For a 415 V industrial panel, 75.6 kA SCCR gives you headroom above most transformer-fed bus ratings — you're not riding the edge of coordination.

Rated 25 A continuous at 40 °C, and it holds that rating flat through 50 °C. At 55 °C it derates to 24 A, at 60 °C to 23.5 A, at 65 °C to 23 A, and at 70 °C to 22.5 A.

Built-in accessories — what's on board

Also includes a shunt trip (STL) — a voltage-triggered release that lets a remote signal (E-stop, fire alarm, undervoltage relay) trip the breaker electrically. The integrated auxiliary trip is order code 3VA9688-0BL30.

The 15,000-cycle latching endurance (mechanical) is typical for this class — fine for distribution duty where it operates a few times a year, not for frequent switching.

Frequently asked questions

What is 3VA1125-4EF32-0HC0's listed depth?

The depth is 70 mm, with a width of 76.2 mm and height of 130 mm.

MPN
3VA1125-4EF32-0HC0