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Siemens 3VM1020-4ED32-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VM1020-4ED32-0AA0 SENTRON MCCB, 20A 3-Pole, 121kA a

MPN3VM1020-4ED32-0AA0
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Siemens SENTRON, Molded case circuit breaker, 3VM1020-4ED32-0AA0, 3-pole, 20 A (40 °C), breaking capacity 121 kA at 240 V, TM210 overcurrent release, line protection.

Siemens 3VM1020-4ED32-0AA0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3VM1020-4ED32-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Product versionLine protection
3VM1020-4ED32-0AA0 — Ratings
ParameterValue
Number of poles3
Rated operational voltage Ue (AC)690 V
Rated insulation voltage Ui800 V
Current at 40 °C20 A
Current at 45 °C20 A
Current at 50 °C20 A
Current at 55 °C20 A
Current at 60 °C19 A
Current at 65 °C19 A
Current at 70 °C18 A
Switching capacity classS
Breaking capacity at 240 V121 kA
Breaking capacity at 415 V76 kA
Breaking capacity at 440 V40 kA
Breaking capacity at 500 V12 kA
Power loss, max.12 W
3VM1020-4ED32-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM210
Overcurrent protection functionLI
Ground-fault monitoringWithout
3VM1020-4ED32-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront connection
Protection class (IP), frontIP40
3VM1020-4ED32-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionNo
Auxiliary CO contacts0
3VM1020-4ED32-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VM1020-4ED32-0AA0 — Mechanical
ParameterValue
Height130 mm
Width76.2 mm
Depth70 mm
Height (in)5.12 in
Width (in)3 in
Depth (in)2.76 in

Product details

SENTRON 3VM1020-4ED32-0AA0 — 20 A MCCB with TM210 Trip Unit

The Siemens 3VM1020-4ED32-0AA0 is a current-production SENTRON molded case circuit breaker (MCCB) in a 3-pole configuration, rated 20 A continuous at 40 °C ambient with a TM210 thermal-magnetic overcurrent release. Its breaking capacity reaches 121 kA at 240 V AC, 76 kA at 415 V, 40 kA at 440 V, and 12 kA at 500 V — figures that cover most industrial distribution and motor branch-circuit fault levels without cascading upstream.

Thermal Derating and Application Limits

The 3VM1020-4ED32-0AA0 holds its full 20 A rating from 40 °C through 55 °C, then derates to 19 A at 60–65 °C and 18 A at 70 °C.

Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep — a standard 3-pole MCCB footprint that drops into most DIN-rail or panel-mount enclosures without re-drilling.

MPN
3VM1020-4ED32-0AA0