Siemens 3VA1125-5EF32-0KA0 MCCB 25A 3-Pole, 187kA at 240V

Name: 3VA1125-5EF32-0KA0
Brand: Siemens
SKU: 3VA1125-5EF32-0KA0
Availability: LimitedAvailability
Author: Validation Vera

Specifications

Identification

3VA1125-5EF32-0KA0 — Identification
Parameter	Value
Product designation	Molded case circuit breaker
Brand / range	SENTRON
Basic switch (supplied) ref.	3VA11255EF320AA0

Ratings

3VA1125-5EF32-0KA0 — Ratings
Parameter	Value
Number of poles	3
Rated operational voltage Ue (AC)	690 V
Rated insulation voltage Ui	800 V
Current at 40 °C	25 A
Current at 45 °C	25 A
Current at 50 °C	25 A
Current at 55 °C	24 A
Current at 60 °C	24 A
Current at 65 °C	23 A
Current at 70 °C	23 A
Switching capacity class	M
Breaking capacity at 240 V	187 kA
Breaking capacity at 415 V	121 kA
Breaking capacity at 440 V	75.6 kA
Breaking capacity at 500 V	17 kA
Breaking capacity at 690 V	17 kA
Power loss, max.	8.5 W

Protection & Trip Unit

3VA1125-5EF32-0KA0 — Protection & Trip Unit
Parameter	Value
Overcurrent release (trip unit) type	TM240
Overcurrent protection function	LI
Ground-fault monitoring	Without
Grounding protection function	No

Construction & Connection

3VA1125-5EF32-0KA0 — Construction & Connection
Parameter	Value
Main circuit connection type	nut keeper kit on both ends
Main circuit connector arrangement	Front terminal
Protection class (IP), front	IP40

Accessories & Functions

3VA1125-5EF32-0KA0 — Accessories & Functions
Parameter	Value
Undervoltage release	No
Voltage trigger	Yes
Trip indicator	No
Communication function	No
Measurement function	No
Motor drive option	Yes
Auxiliary CO contacts	0

Environmental

3VA1125-5EF32-0KA0 — Environmental
Parameter	Value
Operating temperature, max.	70 °C
Operating temperature, min.	-25 °C
Storage temperature, max.	80 °C
Storage temperature, min.	-40 °C

Mechanical

3VA1125-5EF32-0KA0 — Mechanical
Parameter	Value
Mechanical service life (operating cycles), typ.	20 000
Height	130 mm
Width	76.2 mm
Depth	70 mm
Height (in)	5.12 in
Width (in)	3 in
Depth (in)	2.76 in

Product details

Siemens SENTRON 3VA1125-5EF32-0KA0 – 25 A MCCB with Shunt Trip

The Siemens SENTRON 3VA1125-5EF32-0KA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, with a TM240 thermal-magnetic overcurrent release and an integrated shunt trip (STL). Rated current is 25 A up to 50 °C, derating to 23 A at 70 °C. The 187 kA breaking capacity at 240 V AC drops to 121 kA at 415 V and 75.6 kA at 440 V; at 500 V and 690 V it holds at 17 kA — sufficient for high-fault industrial panels where selectivity with upstream gear matters. Rated insulation voltage is 800 V, and maximum power loss is 8.5 W. The shunt trip (STL) allows remote tripping from an emergency-stop or safety circuit — useful for a controlled disconnection under fault or maintenance conditions.

Panel Integration & Mounting

The breaker measures 130 mm high, 76.2 mm wide, and 70 mm deep; the 3-inch width fits standard panel cutouts for 3-pole MCCBs. No undervoltage release or communication function is fitted on this variant — keep that in mind if your BOM calls for UVR or remote monitoring.

Frequently asked questions

What is 3VA1125-5EF32-0KA0's breaking capacity at 240 V?

The breaking capacity is 187 kA at 240 V AC; at 415 V it is 121 kA, at 440 V it is 75.6 kA, and at 500 V and 690 V it is 17 kA.

Where can I buy 3VA1125-5EF32-0KA0?

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

Will 3VA1125-5EF32-0KA0 drop into a panel specified for 3VA1110-5EF32-0LA0?

Both are 3-pole SENTRON MCCBs with the same 76.2 mm width and shunt trip, so the footprint is compatible — but verify the amp rating and breaking capacity match your coordination study, as the 3VA1110 is a 100 A frame.