3VA2340-6JQ32-0KC0 SENTRON MCCB, 400 A, 242 kA at 240 V

Name: 3VA2340-6JQ32-0KC0
Brand: Siemens
SKU: 3VA2340-6JQ32-0KC0
Availability: LimitedAvailability
Author: Shenzhen Shu

Specifications

Identification

3VA2340-6JQ32-0KC0 — Identification
Parameter	Value
Product designation	Molded case circuit breaker
Brand / range	SENTRON
Basic switch (supplied) ref.	3VA2340-6JQ32-0AA0
Integrated auxiliary / alarm switch ref.	3VA9988-0AA12

Ratings

3VA2340-6JQ32-0KC0 — Ratings
Parameter	Value
Number of poles	3
Rated operational voltage Ue (AC)	690 V
Rated insulation voltage Ui	800 V
Current at 40 °C	400 A
Current at 45 °C	400 A
Current at 50 °C	400 A
Current at 55 °C	375 A
Current at 60 °C	350 A
Current at 65 °C	325 A
Current at 70 °C	300 A
Switching capacity class	H
Breaking capacity at 240 V	242 kA
Breaking capacity at 415 V	187 kA
Breaking capacity at 440 V	187 kA
Breaking capacity at 500 V	121 kA
Breaking capacity at 690 V	7.5 kA
Power loss, max.	96 W

Protection & Trip Unit

3VA2340-6JQ32-0KC0 — Protection & Trip Unit
Parameter	Value
Overcurrent release (trip unit) type	ETU560
Overcurrent protection function	LSIG
Ground-fault monitoring	Summation current formation L-conductor
Grounding protection function	Yes

Construction & Connection

3VA2340-6JQ32-0KC0 — Construction & Connection
Parameter	Value
Main circuit connection type	on both sides nut keeper kit
Main circuit connector arrangement	Front terminal
Protection class (IP), front	IP40

Accessories & Functions

3VA2340-6JQ32-0KC0 — Accessories & Functions
Parameter	Value
Undervoltage release	No
Voltage trigger	Yes
Trip indicator	No
Communication function	Yes
Measurement function	No
Motor drive option	Yes
Auxiliary CO contacts	2

Environmental

3VA2340-6JQ32-0KC0 — Environmental
Parameter	Value
Operating temperature, max.	70 °C
Operating temperature, min.	-25 °C
Storage temperature, max.	80 °C
Storage temperature, min.	-40 °C

Mechanical

3VA2340-6JQ32-0KC0 — Mechanical
Parameter	Value
Mechanical service life (operating cycles), typ.	20 000
Height	248 mm
Width	138 mm
Depth	110 mm
Height (in)	9.76 in
Width (in)	5.43 in
Depth (in)	4.33 in

Product details

The Siemens SENTRON 3VA2340-6JQ32-0KC0 is a 3-pole molded case circuit breaker rated 400 A full-scale, with an interrupting capacity of 242 kA at 240 V and 187 kA at 415 V. Designed for line protection, it includes a communication function and ships with two auxiliary switches (HQ) and a shunt trip (STL) release. The basic switch variant is 3VA2340-6JQ32-0AA0.

Interrupting and thermal derating

At 240 V the breaker clears 242 kA; at 415 V and 440 V it holds 187 kA, dropping to 121 kA at 500 V and 7.5 kA at 690 V. The thermal continuous current is flat at 400 A from 40 °C through 50 °C, then derates to 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, and 300 A at 70 °C. Maximum power loss is 96 W.

Dimensions and environment

The unit measures 248 mm high, 138 mm wide, and 110 mm deep — a 3-pole MCCB footprint that fits standard SENTRON panel cutouts. Operating range is -25 °C to 70 °C; storage from -40 °C to 80 °C. The adjustable trip initial value is 80 A.

Frequently asked questions

What is the interrupting capacity of 3VA2340-6JQ32-0KC0 at different voltages?

It clears 242 kA at 240 V, 187 kA at both 415 V and 440 V, 121 kA at 500 V, and 7.5 kA at 690 V.

Where can I buy 3VA2340-6JQ32-0KC0?

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