Siemens 3VA1050-2ED42-0JA0 SENTRON MCCB, 50 A, 4-Pole, Shunt

Name: 3VA1050-2ED42-0JA0
Brand: Siemens
SKU: 3VA1050-2ED42-0JA0
Availability: LimitedAvailability
Author: Spares Sergei

Specifications

Identification

3VA1050-2ED42-0JA0 — Identification
Parameter	Value
Product designation	Molded case circuit breaker
Brand / range	SENTRON
Basic switch (supplied) ref.	3VA10502ED420AA0

Ratings

3VA1050-2ED42-0JA0 — Ratings
Parameter	Value
Number of poles	4
Rated operational voltage Ue (AC)	690 V
Rated insulation voltage Ui	800 V
Current at 40 °C	50 A
Current at 45 °C	50 A
Current at 50 °C	50 A
Current at 55 °C	49 A
Current at 60 °C	48 A
Current at 65 °C	46 A
Current at 70 °C	45 A
Switching capacity class	B
Breaking capacity at 240 V	52.5 kA
Breaking capacity at 415 V	32 kA
Breaking capacity at 440 V	13.6 kA
Breaking capacity at 500 V	7.5 kA
Breaking capacity at 690 V	7.5 kA
Power loss, max.	14.6 W

Protection & Trip Unit

3VA1050-2ED42-0JA0 — Protection & Trip Unit
Parameter	Value
Overcurrent release (trip unit) type	TM210
Overcurrent protection function	LI
Ground-fault monitoring	Without
Grounding protection function	No

Construction & Connection

3VA1050-2ED42-0JA0 — 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

3VA1050-2ED42-0JA0 — Accessories & Functions
Parameter	Value
Undervoltage release	No
Voltage trigger	Yes
Trip indicator	No
Communication function	No
Measurement function	No
Motor drive option	No
Auxiliary CO contacts	0

Environmental

3VA1050-2ED42-0JA0 — Environmental
Parameter	Value
Operating temperature, max.	70 °C
Operating temperature, min.	-25 °C
Storage temperature, max.	80 °C
Storage temperature, min.	-40 °C

Mechanical

3VA1050-2ED42-0JA0 — Mechanical
Parameter	Value
Mechanical service life (operating cycles), typ.	20 000
Height	130 mm
Width	101.6 mm
Depth	70 mm
Height (in)	5.12 in
Width (in)	4 in
Depth (in)	2.76 in

Product details

Siemens 3VA1050-2ED42-0JA0 — SENTRON MCCB with Shunt Trip

The Siemens 3VA1050-2ED42-0JA0 is a 4-pole molded case circuit breaker from the SENTRON series, designed for line protection. It carries a thermal-magnetic release (TM210) and an integrated shunt trip (STL) for remote tripping, making it a fit for main or feeder protection in distribution panels where emergency-off or supervisory control is required. Rated 50 A continuously at 40 °C, with minimal derating up to 70 °C (45 A), so it holds its rating across typical enclosure ambient temperatures without oversizing the frame. Breaking capacity reaches 52.5 kA at 240 V and 32 kA at 415 V, which covers most low-voltage fault levels in commercial and light industrial panels. The 7.5 kA rating at 690 V confirms it can handle 3-phase 690 V motor circuits where available fault current is moderate.

Mounting & Integration

The breaker occupies a 101.6 mm wide, 130 mm tall, 70 mm deep footprint — a standard 4-pole MCCB form factor that fits most DIN-rail or panel-mount enclosures without re-drilling. The supplied basic switch is the 3VA10502ED420AA0; the shunt trip release (STL) is factory-installed, so no field wiring of an external trip coil is needed.

Frequently asked questions

What are the key ratings for this MCCB?

Rated current 50 A at 40 °C, 4-pole, breaking capacity 52.5 kA at 240 V and 32 kA at 415 V, with a shunt trip release for remote tripping.

Where can I buy the 3VA1050-2ED42-0JA0 and how is it quoted?

This part is sourced to order through independent distribution. Submit an RFQ for current availability and pricing — no stock count or price is listed here, but a quote is confirmed at time of request.