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Siemens 3VA1020-3ED32-0KC0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1020-3ED32-0KC0 SENTRON MCCB, 20 A, 75.6 kA at 24

MPN3VA1020-3ED32-0KC0

Siemens SENTRON 3VA1020-3ED32-0KC0, 3-pole molded case circuit breaker, 20 A (40 °C), 75.6 kA at 240 V, line protection, shunt trip, 2 HQ aux switches, 70 mm depth.

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

3VA1020-3ED32-0KC0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Basic switch (supplied) ref.3VA10203ED320AA0
Integrated auxiliary / alarm switch ref.3VA9988-0AA12
3VA1020-3ED32-0KC0 — 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 °C19 A
Switching capacity classN
Breaking capacity at 240 V75.6 kA
Breaking capacity at 415 V52.5 kA
Breaking capacity at 440 V32 kA
Breaking capacity at 500 V7.5 kA
Breaking capacity at 690 V7.5 kA
Power loss, max.12 W
3VA1020-3ED32-0KC0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM210
Overcurrent protection functionLI
Ground-fault monitoringWithout
Grounding protection functionNo
3VA1020-3ED32-0KC0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1020-3ED32-0KC0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerYes
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionNo
Auxiliary CO contacts2
3VA1020-3ED32-0KC0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1020-3ED32-0KC0 — Mechanical
ParameterValue
Mechanical service life (operating cycles), typ.20 000
Height130 mm
Width76.2 mm
Depth70 mm
Height (in)5.12 in
Width (in)3 in
Depth (in)2.76 in

Product details

Its interrupting capacity is the headline spec for a sourcing decision: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at both 500 V and 690 V. The 20 A continuous rating holds flat from 40 °C through 55 °C, then derates to 19 A at 60 °C through 70 °C, so in a warm panel you lose 1 A above 55 °C ambient.

Fit and integration — DIN rail or direct mount

The shunt trip (STL) and two HQ auxiliary switches are factory-fitted, so no field-assembly of accessories is needed — just wire the line and load terminals.

What's on the nameplate — compliance and documentation

The basic switch variant is 3VA10203ED320AA0; the auxiliary switch configuration is two HQ switches.

Frequently asked questions

Where can I buy 3VA1020-3ED32-0KC0 and how is it quoted?

This MCCB is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

What are the key interrupting ratings for 3VA1020-3ED32-0KC0?

It interrupts 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at both 500 V and 690 V. The continuous rating is 20 A from 40 °C to 55 °C, derating to 19 A from 60 °C to 70 °C.

What accessories are fitted on this breaker?

It comes with a factory-fitted shunt trip (STL) and two HQ auxiliary switches. No undervoltage release, ground-fault monitoring, or communication module is included.

What is the physical size of 3VA1020-3ED32-0KC0?

It measures 130 mm high, 76.2 mm wide, and 70 mm deep — the depth is the key dimension for enclosure fit.

MPN
3VA1020-3ED32-0KC0