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Siemens 3VA1225-5EF42-0DH0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1225-5EF42-0DH0 SENTRON MCCB, 250A, 4P, 187kA at

MPN3VA1225-5EF42-0DH0

Siemens SENTRON 3VA1225-5EF42-0DH0, molded case circuit breaker, 4-pole, 250 A at 40 °C, 187 kA breaking capacity at 240 V AC.

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

3VA1225-5EF42-0DH0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA12255EF420AA0
Integrated auxiliary / alarm switch ref.3VA9988-0AB12
3VA1225-5EF42-0DH0 — 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.59.5 W
3VA1225-5EF42-0DH0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1225-5EF42-0DH0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1225-5EF42-0DH0 — Accessories & Functions
ParameterValue
Undervoltage releaseYes
Voltage triggerNo
Trip indicatorYes
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts3
3VA1225-5EF42-0DH0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1225-5EF42-0DH0 — 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

SENTRON 3VA1225-5EF42-0DH0 — 250 A Line Protection MCCB

The Siemens SENTRON 3VA1225-5EF42-0DH0 is a 4-pole molded case circuit breaker (MCCB) rated for line protection, carrying 250 A continuously at 40 °C with no derating up to 50 °C. At 240 V AC it interrupts faults up to 187 kA, dropping to 121 kA at 415 V and 75.6 kA at 440 V — figures that govern the available fault current the panel's buswork must withstand.

Thermal performance and auxiliary configuration

Current rating holds at 250 A from 40 °C through 50 °C, then derates linearly to 223 A at 70 °C — useful when the breaker sits in a warm section of the enclosure.

Frequently asked questions

Where can I buy 3VA1225-5EF42-0DH0 and get a price?

This part is sourced to order against an RFQ through independent distribution. Submit a request for quote (RFQ) to confirm availability and current pricing.

What are the key ratings for 3VA1225-5EF42-0DH0?

Rated 250 A at 40 °C, 4-pole, with a breaking capacity of 187 kA at 240 V AC, 121 kA at 415 V AC, and 75.6 kA at 440 V AC. Insulation voltage is 800 V.

What auxiliary options does this MCCB include?

It comes with an undervoltage release (UVR) and a configuration of 2 auxiliary switches plus 1 trip alarm switch (HQ).

MPN
3VA1225-5EF42-0DH0