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Siemens 5SN6340-7CP — 3-Pole MCB (DIN Rail)

Siemens 5SN6340-7CP MCB, 3-Pole, 400V AC, 6kA EN 60898

MPN5SN6340-7CP

Siemens SENTRON 5SN6340-7CP, 3-pole miniature circuit breaker, 400 V AC, 50 Hz, 6 kA (EN 60898) / 10 kA (IEC 60947-2), 3 modular width units.

Siemens 5SN6340-7CP datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SN6340-7CP — Identification
ParameterValue
Number of poles3
5SN6340-7CP — Protection
ParameterValue
Breaking capacity per EN 608986 kA
Breaking capacity per IEC 60947-210 kA
5SN6340-7CP — Electrical
ParameterValue
Rated voltage (AC, multi-phase)440 V
Power loss per pole at rated current (AC, hot)3.5 W
Mechanical service life (operating cycles, typ.)10 000
Rated voltage (AC, single-phase)440 V
5SN6340-7CP — Mechanical
ParameterValue
Modular width units3
Width54 mm
Height90 mm
Depth76 mm
Installation depth70 mm
Terminal tightening torque, max.75 °C
Terminal tightening torque, min.-40 °C

Product details

Siemens SENTRON 5SN6340-7CP — 3-pole MCB, 400 V AC, 6 kA

It's rated for 400 V AC at 50 Hz, with a breaking capacity of 6 kA per EN 60898 and 10 kA per IEC 60947-2. The 6 kA rating under EN 60898 covers the residential and light commercial panelboard fault-current assumption; the 10 kA under IEC 60947-2 gives headroom for industrial distribution where the prospective short-circuit may run higher.

Accepts solid conductors up to 35 mm².

Current-production part. The 5SN6340-7CP is in active manufacture.

Power loss per pole

Frequently asked questions

Will 5SN6340-7CP drop into a panel designed for 5SL4363-7?

Yes, the 5SN6340-7CP shares the same depth (76 mm), width (54 mm), height (90 mm), and installation depth (70 mm) as the 5SL4363-7. Both are 3-pole SENTRON MCBs on 3 modular width units. No rewiring needed for the same DIN-rail footprint.

MPN
5SN6340-7CP