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Siemens 3VA1225-5GF42-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1225-5GF42-0AA0 SENTRON MCCB, 250 A, 4-Pole, TM24

MPN3VA1225-5GF42-0AA0
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Siemens SENTRON 3VA1225-5GF42-0AA0, molded case circuit breaker, 4-pole, 250 A, TM240 overcurrent release, line protection design.

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

3VA1225-5GF42-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VA1225-5GF42-0AA0 — Ratings
ParameterValue
Number of poles4
Rated operational voltage Ue (AC)690 V
Rated insulation voltage Ui800 V
Current at 40 °C250 A
Current at 45 °C250 A
Current at 50 °C250 A
Current at 55 °C243 A
Current at 60 °C237 A
Current at 65 °C230 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 V75.6 kA
Breaking capacity at 500 V30 kA
Breaking capacity at 690 V17 kA
Power loss, max.57 W
3VA1225-5GF42-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1225-5GF42-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1225-5GF42-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA1225-5GF42-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1225-5GF42-0AA0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.20 000
Height158 mm
Width140 mm
Depth70 mm
Height (in)6.22 in
Width (in)5.51 in
Depth (in)2.76 in

Product details

The TM240 thermal-magnetic release means the thermal element is calibrated for a 240 A frame, with the magnetic trip set to handle inrush without nuisance tripping on motor or transformer starts. At 240 V it interrupts 187 kA — enough for a high-capacity transformer secondary. At 415 V it's 121 kA, at 440 V it drops to 75.6 kA, and at 690 V it's still 17 kA. That's a wide voltage band, so verify your system voltage against the curve before specifying. Front-side protection is IP40 — fine for a closed panel, not for washdown areas.

It is a 4-pole MCCB. Power loss is 57 W maximum at rated current.

Frequently asked questions

What overcurrent release does this breaker use?

It uses a TM240 thermal-magnetic release — thermal element calibrated for 240 A frame, magnetic trip set for motor/transformer inrush without nuisance tripping.

MPN
3VA1225-5GF42-0AA0