Skip to main content
Log in
Siemens 3VA1225-5EF42-0AH0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1225-5EF42-0AH0 SENTRON MCCB, 250 A, 4-Pole

MPN3VA1225-5EF42-0AH0

Siemens SENTRON 3VA1225-5EF42-0AH0, 4-pole molded case circuit breaker, 250 A rated continuous current, TM240 thermal-magnetic release, line protection version.

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

3VA1225-5EF42-0AH0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Product versionLine protection
Integrated auxiliary / alarm switch ref.3VA9988-0AB12
3VA1225-5EF42-0AH0 — Ratings
ParameterValue
Number of poles4
Current at 40 °C250 A
Current at 45 °C250 A
Current at 50 °C250 A
Current at 55 °C243.3 A
Current at 60 °C236.5 A
Current at 65 °C229 A
Current at 70 °C223 A
Switching capacity classM
Breaking capacity at 240 V187 kA
Breaking capacity at 415 V121 kA
Breaking capacity at 440 V36 kA
Breaking capacity at 690 V17 kA
3VA1225-5EF42-0AH0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
3VA1225-5EF42-0AH0 — Construction & Connection
ParameterValue
Main circuit connection typelug terminal
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1225-5EF42-0AH0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorYes
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts3
3VA1225-5EF42-0AH0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1225-5EF42-0AH0 — Mechanical
ParameterValue
Height158 mm
Width140 mm
Depth70 mm

Product details

This MCCB delivers 187 kA breaking capacity at 240 V, 121 kA at 415 V, 36 kA at 440 V, and 17 kA at 690 V. The 4-pole design (three phases plus neutral switched) is standard for TN-S or TT systems where the neutral needs disconnection.

At 55 °C it derates to 243.3 A, at 60 °C to 236.5 A, at 65 °C to 229 A, and at 70 °C to 223 A. That means in a warm panel — say 50 °C internal — you still get full 250 A; above that, the thermal element trips earlier to protect the breaker internals. The IP40 front protection is typical for panel-mounted breakers — dust-protected but not sealed against water ingress.

Auxiliary contacts and signaling

The trip alarm signals a fault trip separately from manual on/off status — useful for remote monitoring or PLC input.

Frequently asked questions

Where can I buy 3VA1225-5EF42-0AH0?

This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for your quantity and timeline.

What is the breaking capacity of 3VA1225-5EF42-0AH0?

187 kA at 240 V, 121 kA at 415 V, 36 kA at 440 V, and 17 kA at 690 V — these are Icu ratings for the 250 A frame.

Will 3VA1225-5EF42-0AH0 fit a panel designed for a 3VA1010-2ED42-0AE0?

No — the 3VA1010 is a smaller frame (100 A, 3-pole typically) with different dimensions and mounting footprint. The 3VA1225 is physically larger (70 mm depth, 140 mm width, 158 mm height) and requires panel cutout and busbar spacing sized for a 250 A frame.

MPN
3VA1225-5EF42-0AH0