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Siemens 3VA1020-4ED32-0AD0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1020-4ED32-0AD0 SENTRON MCCB, 20 A, 3-Pole, 121 k

MPN3VA1020-4ED32-0AD0

Siemens SENTRON 3VA1020-4ED32-0AD0, molded case circuit breaker, 3-pole, 20 A rated continuous current Iu, TM210 thermal-magnetic release, 121 kA at 240 V, IP40 front protection.

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

3VA1020-4ED32-0AD0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Product versionLine protection
Integrated auxiliary / alarm switch ref.3VA9988-0AA12
3VA1020-4ED32-0AD0 — Ratings
ParameterValue
Number of poles3
Current at 40 °C20 A
Current at 45 °C20 A
Current at 50 °C20 A
Current at 55 °C19.2 A
Current at 60 °C18.8 A
Current at 65 °C18.4 A
Current at 70 °C18 A
Switching capacity classS
Breaking capacity at 240 V121 kA
Breaking capacity at 415 V75.6 kA
Breaking capacity at 440 V52.5 kA
Breaking capacity at 690 V11.9 kA
3VA1020-4ED32-0AD0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM210
3VA1020-4ED32-0AD0 — Construction & Connection
ParameterValue
Main circuit connection typelug terminal
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1020-4ED32-0AD0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionNo
Auxiliary CO contacts3
3VA1020-4ED32-0AD0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1020-4ED32-0AD0 — Mechanical
ParameterValue
Height130 mm
Width76.2 mm
Depth70 mm

Product details

Line protection MCCB with TM210 release — 20 A frame, 121 kA interrupting capacity

The interrupting capacity hits 121 kA at 240 V and 75.6 kA at 415 V — numbers that govern selectivity coordination in high-fault panels. The TM210 thermal-magnetic release is fixed (non-adjustable), so the trip curve is set at the factory; no field tweaking on the thermal or magnetic pickup.

Derating profile and thermal limits

Above that, it derates linearly: 19.2 A at 55 °C, 18.8 A at 60 °C, 18.4 A at 65 °C, and 18 A at 70 °C.

Physical fit and auxiliary configuration

Footprint is 76.2 mm wide by 130 mm tall by 70 mm deep — standard 3-pole MCCB envelope for DIN-rail or panel-mount backplate integration. The auxiliary contact version is 3 auxiliary switches HQ.

Frequently asked questions

Will 3VA1020-4ED32-0AD0 drop into a panel specified around 3VA1010-2ED32-0JA0 without rewiring?

Physically yes — same 3-pole SENTRON 3VA footprint (76.2 mm wide, 70 mm deep). Electrically no: the 20 A frame requires the feeder and load conductors sized for 20 A, and the interrupting capacity at the fault point must be rechecked against the 3VA1020's curve. If the original panel was wired and braced for a 10 A MCCB, the bus and lug stack may not carry 20 A continuously.

Where can I buy 3VA1020-4ED32-0AD0 and how is it quoted?

Sourced and quoted to order against an RFQ through independent industrial-automation distribution. Availability and current pricing are confirmed at quote time — no stock count or price figure published here.

MPN
3VA1020-4ED32-0AD0