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Siemens 3VM1220-5MH32-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VM1220-5MH32-0AA0 SENTRON MCCB, 200 A, 3-Pole, TM12

MPN3VM1220-5MH32-0AA0
Active

Siemens SENTRON molded case circuit breaker, 3VM1220-5MH32-0AA0, 3-pole, TM120M thermal-magnetic release, 200 A at 40 °C, interrupting capacity 187 kA at 240 V AC, IP40 front protection.

Siemens 3VM1220-5MH32-0AA0 datasheet (PDF)
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

3VM1220-5MH32-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
3VM1220-5MH32-0AA0 — Ratings
ParameterValue
Number of poles3
Rated operational voltage Ue (AC)690 V
Rated insulation voltage Ui800 V
Current at 40 °C200 A
Current at 45 °C200 A
Current at 50 °C200 A
Current at 55 °C194 A
Current at 60 °C188 A
Current at 65 °C182 A
Current at 70 °C176 A
Switching capacity classM
Breaking capacity at 240 V187 kA
Breaking capacity at 415 V121 kA
Breaking capacity at 440 V76 kA
Breaking capacity at 500 V30 kA
Power loss, max.42 W
3VM1220-5MH32-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM120M
Overcurrent protection functionI
Ground-fault monitoringWithout
Grounding protection functionNo
3VM1220-5MH32-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typenut keeper kit on both ends
Main circuit connector arrangementFront connection
Protection class (IP), frontIP40
3VM1220-5MH32-0AA0 — Accessories & Functions
ParameterValue
Undervoltage releaseNo
Voltage triggerNo
Trip indicatorNo
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VM1220-5MH32-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VM1220-5MH32-0AA0 — 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

SENTRON 3VM1220-5MH32-0AA0 — 200 A MCCB with TM120M Release

It carries an interrupting capacity of 187 kA at 240 V AC, 121 kA at 415 V, 76 kA at 440 V, and 30 kA at 500 V — giving you headroom for high-fault installations without cascading upstream gear.

The breaker holds a full 200 A up to 50 °C ambient, then derates linearly: 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C. Front protection is IP40 — fine for a clean panel interior, but not for washdown. Dimensions are 105 mm wide × 158 mm high × 70 mm deep, fitting standard 3-pole MCCB panel cutouts.

Frequently asked questions

What is the interrupting capacity of this MCCB at 240 V?

187 kA at 240 V AC. At 415 V it's 121 kA, at 440 V it's 76 kA, and at 500 V it's 30 kA.

Where can I buy 3VM1220-5MH32-0AA0 and how is it quoted?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What does the TM120M release mean?

The TM120M is a thermal-magnetic fixed-trip release — thermal element for overload protection, magnetic for short-circuit. It's non-adjustable, so the breaker's continuous rating is fixed at the listed ampacity.

Will this drop into a panel designed for 5SQ2370-2YA05?

The 3VM1220-5MH32-0AA0 is a different form factor than the 5SQ2370 series — verify panel cutout dimensions and bus bar spacing before substituting. The 105 mm width and 70 mm depth are specific to the SENTRON 3VM platform.

MPN
3VM1220-5MH32-0AA0