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Siemens 3VA1340-6EF32-0BF0 — Molded Case Circuit Breakers (MCCB)

Siemens 3VA1340-6EF32-0BF0 MCCB, 400 A, 220 kA at 240 V

MPN3VA1340-6EF32-0BF0

Siemens SENTRON 3VA1340-6EF32-0BF0, molded case circuit breaker, 3-pole, 400 A rated continuous current, TM240 thermal-magnetic release, 220 kA at 240 V interrupting capacity.

Siemens 3VA1340-6EF32-0BF0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3VA1340-6EF32-0BF0 — Identification
ParameterValue
Product designationMolded case circuit breaker
Brand / rangeSENTRON
Product versionLine protection
Integrated auxiliary / alarm switch ref.3VA9988-0AB12
3VA1340-6EF32-0BF0 — Ratings
ParameterValue
Number of poles3
Current at 40 °C400 A
Current at 45 °C400 A
Current at 50 °C400 A
Current at 55 °C392 A
Current at 60 °C384 A
Current at 65 °C376 A
Current at 70 °C367 A
Switching capacity classH
Breaking capacity at 240 V220 kA
Breaking capacity at 415 V154 kA
Breaking capacity at 690 V17 kA
Power loss, max.92.1 W
3VA1340-6EF32-0BF0 — Protection & Trip Unit
ParameterValue
Overcurrent release (trip unit) typeTM240
3VA1340-6EF32-0BF0 — Construction & Connection
ParameterValue
Main circuit connection typelug terminal
Main circuit connector arrangementFront terminal
Protection class (IP), frontIP40
3VA1340-6EF32-0BF0 — Accessories & Functions
ParameterValue
Undervoltage releaseYes
Voltage triggerNo
Trip indicatorYes
Communication functionNo
Measurement functionNo
Motor drive optionYes
Auxiliary CO contacts2
3VA1340-6EF32-0BF0 — Environmental
ParameterValue
Operating temperature, max.70 °C
Operating temperature, min.-25 °C
Storage temperature, max.80 °C
Storage temperature, min.-40 °C
3VA1340-6EF32-0BF0 — Mechanical
ParameterValue
Height248 mm
Width138 mm
Depth110 mm
Height (in)9.8 in
Width (in)5.4 in
Depth (in)4.3 in

Product details

The 3VA1340-6EF32-0BF0: Interrupting capacity hits 220 kA at 240 V, 154 kA at 415 V, and 17 kA at 690 V.

Thermal derating in hot environments

Above that it derates: 392 A at 55 °C, 384 A at 60 °C, 376 A at 65 °C, 367 A at 70 °C. In a cement plant control room that hits 55 °C in summer, you lose 8 A — still plenty of margin for a 350 A motor feeder.

Release and auxiliary configuration

TM240 release means a thermal-magnetic trip unit with a 240 A continuous current rating — the breaker frame is 400 A but the trip is set lower, giving adjustability for the actual load. Includes an undervoltage release (UVR) for coordinated shutdown on voltage loss.

Physical fit and power loss

Latching endurance rated at 15,000 cycles.

Frequently asked questions

What is the interrupting capacity of 3VA1340-6EF32-0BF0 at 240 V?

220 kA at 240 V, with 154 kA at 415 V and 17 kA at 690 V.

What does the TM240 release designation mean?

TM240 is a thermal-magnetic trip unit rated for 240 A continuous current, installed in a 400 A frame. It provides overload and short-circuit protection with a fixed thermal pickup and magnetic trip threshold.

Where can I buy 3VA1340-6EF32-0BF0 and how is it quoted?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock figures or lead-time numbers published here.

Does this breaker include an undervoltage release?

Yes, it includes an undervoltage release (UVR) for coordinated shutdown on voltage loss.

MPN
3VA1340-6EF32-0BF0