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Siemens 3VA2125-8HK46-0AA0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA2125-8HK46-0AA0 SENTRON MCCB, 4P, 25A, ETU340, 44

MPN3VA2125-8HK46-0AA0
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Siemens SENTRON 3VA2125-8HK46-0AA0, molded case circuit breaker, 4-pole, 25 A, ETU340 electronic trip unit, line protection, 440 kA at 240 V.

Siemens 3VA2125-8HK46-0AA0 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

3VA2125-8HK46-0AA0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Product versionLine protection
3VA2125-8HK46-0AA0 — Ratings
ParameterValue
Number of poles4
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 classL
Breaking capacity at 240 V440 kA
Breaking capacity at 415 V330 kA
Breaking capacity at 440 V330 kA
Breaking capacity at 500 V220 kA
Breaking capacity at 690 V53 kA
Power loss, max.0.5 W
3VA2125-8HK46-0AA0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeETU340
3VA2125-8HK46-0AA0 — Construction & Connection
ParameterValue
Main circuit connection typebox terminal
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA2125-8HK46-0AA0 — Accessories & Functions
ParameterValue
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts0
3VA2125-8HK46-0AA0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-40 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA2125-8HK46-0AA0 — Mechanical
ParameterValue
Height181 mm
Width140 mm
Depth86 mm
Height (in)7.1 in
Width (in)5.5 in
Depth (in)3.4 in

Product details

The Siemens SENTRON 3VA2125-8HK46-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for 25 A continuous current across the full ambient range from 40 °C to 70 °C. It carries an interrupting capacity of 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 53 kA at 690 V — figures that place it in the high-interrupting class for line protection in distribution panels and motor control centers.

The ETU340 electronic overcurrent release provides adjustable N-conductor protection (OFF or 100% setting) and a fixed time delay tr of 1300 ms.

Physical integration

Frequently asked questions

Where can I buy 3VA2125-8HK46-0AA0?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What are the interrupting ratings for 3VA2125-8HK46-0AA0?

440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 53 kA at 690 V. These are high-interrupting ratings for a 25 A frame, suitable for high-fault-current installations.

What is the depth of 3VA2125-8HK46-0AA0?

86 mm (3.4 in). This is the standard depth for the 3VA2 4-pole frame, fitting typical panel depths.

Will 3VA2125-8HK46-0AA0 drop into a panel specified for 3VA2125-8KQ42-0AA0?

Both are 4-pole 25 A SENTRON MCCBs sharing the same physical footprint (181 x 140 x 86 mm). The key difference is the trip unit: this unit uses an ETU340 electronic release, while the peer uses a different release variant. Panel cutout and bus connections are identical; verify the trip curve and protection settings against the original specification before substituting.

MPN
3VA2125-8HK46-0AA0