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Siemens 3VM1225-4ED32-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens SENTRON 3VM1225-4ED32-0AA0 MCCB, 250 A, 3-Pole, TM21

MPN3VM1225-4ED32-0AA0
Active

Siemens SENTRON, Molded case circuit breaker, 3VM1225-4ED32-0AA0, 250 A at 40 °C, 3-pole, TM210 overcurrent release, 121 kA at 240 V, IP40 front.

Siemens 3VM1225-4ED32-0AA0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3VM1225-4ED32-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VM1225-4ED32-0AA0 — Ratings
ParameterValue
Number of poles3
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 °C243.3 A
Current at 60 °C236.5 A
Current at 65 °C229.8 A
Current at 70 °C223 A
Switching capacity classS
Breaking capacity at 240 V121 kA
Breaking capacity at 415 V76 kA
Breaking capacity at 440 V53 kA
Breaking capacity at 500 V17 kA
Power loss, max.57 W
3VM1225-4ED32-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM210
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VM1225-4ED32-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront connection
Protection class (IP), frontIP40
3VM1225-4ED32-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionNo
Auxiliary CO contacts0
3VM1225-4ED32-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VM1225-4ED32-0AA0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.15 000
Height158 mm
Width105 mm
Depth70 mm
Height (in)6.22 in
Width (in)4.13 in
Depth (in)2.76 in

Product details

Siemens SENTRON 3VM1225-4ED32-0AA0 — 250 A MCCB, TM210 Release

The interrupting ratings are what decide fit: 121 kA at 240 V, 76 kA at 415 V, 53 kA at 440 V, and 17 kA at 500 V — so at 415 V it clears faults up to 76 kA without cascading upstream, which is the figure most panel builders check for IEC 60947-2 coordination.

Thermal Derating and Continuous Current

Above that it derates linearly: 243.3 A at 55 °C, 236.5 A at 60 °C, 229.8 A at 65 °C, and 223 A at 70 °C. If the panel ambient hits 60 °C, the available continuous current drops to 236.5 A — the so-what is that a 250 A feeder needs a panel ventilation review or a higher-frame breaker if the enclosure runs hot.

Physical Integration and Approvals

The TM210 release design means the thermal and magnetic settings are factory-fixed; no field-adjustable dials.

Frequently asked questions

What are the interrupting ratings for 3VM1225-4ED32-0AA0 at common voltages?

121 kA at 240 V, 76 kA at 415 V, 53 kA at 440 V, and 17 kA at 500 V. The 415 V figure is the one most panel builders use for IEC coordination studies.

Will 3VM1225-4ED32-0AA0 drop into a panel specified around 3VA1110-5ED36-0AC0?

Not without checking the mounting footprint and bus bar spacing. The 3VM1225-4ED32-0AA0 is a 250 A frame with 105 mm width and 70 mm depth; the 3VA1110-5ED36-0AC0 is a different frame size. Physical fit must be verified against the existing panel cutout and bus connection layout.

Where can I buy 3VM1225-4ED32-0AA0 and how is it quoted?

This part is sourced through independent distribution channels and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — no stock figures are published here.

What is the continuous current rating at elevated ambient temperatures?

250 A from 40 °C to 50 °C, then derated to 243.3 A at 55 °C, 236.5 A at 60 °C, 229.8 A at 65 °C, and 223 A at 70 °C. Use the 60 °C column if the panel runs hot.

MPN
3VM1225-4ED32-0AA0