The Siemens 3VA2340-6JP42-0KE0 is a 4-pole IEC frame 400 molded-case circuit breaker with a 400 A rated current (In) and a class H breaking capacity of 85 kA at 415 V AC. The ETU550 electronic trip unit provides LSI protection (long-time, short-time, instantaneous) with adjustable Ir from 160 A to 400 A, Isd from 0.6 to 10x In, and Ii from 1.5 to 10x In, giving you granular selectivity coordination downstream. The built-in shunt trip on the left side operates on 208–277 V AC 50/60 Hz or 220–250 V DC, allowing remote emergency-off or undervoltage release without an external relay. The neutral conductor protection is adjustable from OFF to 100% of In, covering both grounded and ungrounded distribution schemes.

Siemens 3VA2340-6JP42-0KE0 Circuit Breaker, 400A, 85kA @ 415
Siemens 3VA2 IEC frame 400, breaking capacity class H, Icu=85kA @ 415V, 4-pole, line protection ETU550, LSI, In=400A, overload protection Ir=160A...400A, short-circuit protection Isd=0.6..10x In, Ii=1.5..10x In, N conductor protection adjustable (OFF, up to 100%), nut keeper kit, shunt trip left 208-277 V AC 50/60 Hz 220-250 V DC, 4 auxiliary switches.
Product details
Frequently asked questions
What is the breaking capacity of this breaker?
The breaking capacity is 85 kA at 415 V AC (class H), which is the maximum fault current it can safely interrupt at that voltage.
What does the ETU550 trip unit protect against?
The ETU550 provides LSI protection — long-time (overload), short-time (selective coordination), and instantaneous (magnetic) — with adjustable settings for Ir, Isd, and Ii.
Where can I buy 3VA2340-6JP42-0KE0?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.