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Siemens 3VA2125-5HK36-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2125-5HK36-0AA0 SENTRON MCCB, 25 A, 187 kA at 240

MPN3VA2125-5HK36-0AA0
Active

Siemens SENTRON 3VA2125-5HK36-0AA0, molded case circuit breaker, 3-pole, 25 A rated continuous current, 187 kA interrupting capacity at 240 V, ETU340 electronic trip unit, IP40 front protection.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3VA2125-5HK36-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Product versionLine protection
3VA2125-5HK36-0AA0 — Ratings
ParameterValue
Number of poles3
Current at 40 °C25 A
Current at 45 °C25 A
Current at 50 °C25 A
Current at 55 °C25 A
Current at 60 °C25 A
Current at 65 °C25 A
Current at 70 °C25 A
Switching capacity classM
Breaking capacity at 240 V187 kA
Breaking capacity at 415 V121 kA
Breaking capacity at 440 V121 kA
Breaking capacity at 500 V76 kA
Breaking capacity at 690 V17 kA
Power loss, max.0.6 W
3VA2125-5HK36-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU340
3VA2125-5HK36-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typebox terminal
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2125-5HK36-0AA0 — Accessories & Functions
ParameterValue
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA2125-5HK36-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-40 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2125-5HK36-0AA0 — Mechanical
ParameterValue
Height181 mm
Width105 mm
Depth86 mm
Height (in)7.1 in
Width (in)4.1 in
Depth (in)3.4 in

Product details

At 415 V and 440 V it still holds 121 kA, and at 690 V it drops to 17 kA, so the voltage-dependent rating governs where this breaker lands in the switchboard.

Thermal performance and trip unit

The ETU340 electronic overcurrent release gives you adjustable long-time and short-time pickup and delay settings, plus instantaneous and ground-fault protection if wired for it.

Three-pole MCCB with a 105 mm width, 181 mm height, and 86 mm depth — fits standard SENTRON panel mounting footprints. Front IP40 protection handles typical indoor panel environments; no washdown rating, so keep it in the enclosure. Optional motor drive available for remote operation.

Frequently asked questions

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

187 kA at 240 V, dropping to 121 kA at 415 V and 17 kA at 690 V.

What trip unit does the 3VA2125-5HK36-0AA0 use?

ETU340 electronic overcurrent release with adjustable long-time and short-time settings.

Where can I buy the 3VA2125-5HK36-0AA0?

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

MPN
3VA2125-5HK36-0AA0