SENTRON 3VA1120-5EF36-0JC0 MCCB, 3-Pole, 20 A, 187 kA at 240

Name: 3VA1120-5EF36-0JC0
Brand: Siemens
SKU: 3VA1120-5EF36-0JC0
Availability: LimitedAvailability
Author: Spares Sergei

Specifications

Identification

3VA1120-5EF36-0JC0 — Identification
Parameter	Value
Product designation	Molded case circuit breaker
Brand / range	SENTRON
Basic switch (supplied) ref.	3VA11205EF360AA0
Integrated auxiliary / alarm switch ref.	3VA9988-0AA12

Ratings

3VA1120-5EF36-0JC0 — Ratings
Parameter	Value
Number of poles	3
Rated operational voltage Ue (AC)	690 V
Rated insulation voltage Ui	800 V
Current at 40 °C	20 A
Current at 45 °C	20 A
Current at 50 °C	20 A
Current at 55 °C	20 A
Current at 60 °C	19 A
Current at 65 °C	19 A
Current at 70 °C	19 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.	12 W

Protection & Trip Unit

3VA1120-5EF36-0JC0 — 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

3VA1120-5EF36-0JC0 — Construction & Connection
Parameter	Value
Main circuit connection type	box terminal on both sides
Main circuit connector arrangement	Front terminal
Protection class (IP), front	IP40

Accessories & Functions

3VA1120-5EF36-0JC0 — 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	2

Environmental

3VA1120-5EF36-0JC0 — Environmental
Parameter	Value
Operating temperature, max.	70 °C
Operating temperature, min.	-25 °C
Storage temperature, max.	80 °C
Storage temperature, min.	-40 °C

Mechanical

3VA1120-5EF36-0JC0 — 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

The SENTRON 3VA1120-5EF36-0JC0 is a 3-pole molded case circuit breaker (MCCB) rated 20 A at 40 °C, designed for line protection in distribution panels. Its breaking capacity reaches 187 kA at 240 VAC, 121 kA at 415 V, and 75.6 kA at 440 V — figures that govern fault-clearing ability at the point of common coupling. This MCCB carries a shunt trip release (STL) and two auxiliary switches HQ, making it suitable for remote tripping and status feedback in automated systems. Rated insulation voltage is 800 V, with a maximum power loss of 12 W.

Current rating holds at 20 A from 40 °C through 55 °C, then derates to 19 A at 60 °C through 70 °C — a flat thermal curve that simplifies panel sizing in warm enclosures. Operating range spans -25 °C to 70 °C ambient. Dimensions: 130 mm height, 76.2 mm width, 70 mm depth — fits standard SENTRON 3VA mounting footprint for panel or enclosure integration.

Frequently asked questions

What is the breaking capacity of 3VA1120-5EF36-0JC0 at different voltages?

Breaking capacity is 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V.

Where can I buy 3VA1120-5EF36-0JC0 and how is it quoted?

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

Does 3VA1120-5EF36-0JC0 include a shunt trip?

Yes, it includes a shunt trip release (STL) and two auxiliary switches HQ.