Siemens 3VA1225-5EF42-0DH0 SENTRON MCCB, 250A, 4P, 187kA at

Name: 3VA1225-5EF42-0DH0
Brand: Siemens
SKU: 3VA1225-5EF42-0DH0
Availability: LimitedAvailability
Author: Obsolete Olga

Specifications

Identification

3VA1225-5EF42-0DH0 — Identification
Parameter	Value
Product designation	Molded case circuit breaker
Brand / range	SENTRON
Basic switch (supplied) ref.	3VA12255EF420AA0
Integrated auxiliary / alarm switch ref.	3VA9988-0AB12

Ratings

3VA1225-5EF42-0DH0 — Ratings
Parameter	Value
Number of poles	4
Rated operational voltage Ue (AC)	690 V
Rated insulation voltage Ui	800 V
Current at 40 °C	250 A
Current at 45 °C	250 A
Current at 50 °C	250 A
Current at 55 °C	243 A
Current at 60 °C	237 A
Current at 65 °C	230 A
Current at 70 °C	223 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	30 kA
Breaking capacity at 690 V	17 kA
Power loss, max.	59.5 W

Protection & Trip Unit

3VA1225-5EF42-0DH0 — 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

3VA1225-5EF42-0DH0 — 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

3VA1225-5EF42-0DH0 — Accessories & Functions
Parameter	Value
Undervoltage release	Yes
Voltage trigger	No
Trip indicator	Yes
Communication function	No
Measurement function	No
Motor drive option	Yes
Auxiliary CO contacts	3

Environmental

3VA1225-5EF42-0DH0 — Environmental
Parameter	Value
Operating temperature, max.	70 °C
Operating temperature, min.	-25 °C
Storage temperature, max.	80 °C
Storage temperature, min.	-40 °C

Mechanical

3VA1225-5EF42-0DH0 — Mechanical
Parameter	Value
Mechanical service life (operating cycles), typ.	20 000
Height	158 mm
Width	140 mm
Depth	70 mm
Height (in)	6.22 in
Width (in)	5.51 in
Depth (in)	2.76 in

Product details

SENTRON 3VA1225-5EF42-0DH0 — 250 A Line Protection MCCB

The Siemens SENTRON 3VA1225-5EF42-0DH0 is a 4-pole molded case circuit breaker (MCCB) rated for line protection, carrying 250 A continuously at 40 °C with no derating up to 50 °C. At 240 V AC it interrupts faults up to 187 kA, dropping to 121 kA at 415 V and 75.6 kA at 440 V — figures that govern the available fault current the panel's buswork must withstand. The 800 V rated insulation voltage (Ui) sets the maximum system voltage for the application.

Thermal performance and auxiliary configuration

Current rating holds at 250 A from 40 °C through 50 °C, then derates linearly to 223 A at 70 °C — useful when the breaker sits in a warm section of the enclosure. The unit ships with an undervoltage release (UVR) and a 2 auxiliary switch + 1 trip alarm switch (HQ) configuration, so the panel designer gets both status feedback and a shunt-trip-ready release without adding modules. Power loss at full load is 59.5 W; account for that in the enclosure thermal budget.

Frequently asked questions

Where can I buy 3VA1225-5EF42-0DH0 and get a price?

This part is sourced to order against an RFQ through independent distribution. Submit a request for quote (RFQ) to confirm availability and current pricing.

What are the key ratings for 3VA1225-5EF42-0DH0?

Rated 250 A at 40 °C, 4-pole, with a breaking capacity of 187 kA at 240 V AC, 121 kA at 415 V AC, and 75.6 kA at 440 V AC. Insulation voltage is 800 V.

What auxiliary options does this MCCB include?

It comes with an undervoltage release (UVR) and a configuration of 2 auxiliary switches plus 1 trip alarm switch (HQ).