Siemens 5SY6 Circuit Breaker – 5SY66407

The siemens 5sy6640-7 miniature circuit breakers operate at 72 v DC and 40 a at ac. It has switching capacity of 6 ka according to en 60898. These are ideal for application in large non-residential buildings and in industries. Properties for main switches in accordance with en 60204-1. Halogen-free. Number of poles- 4.

Specifications

Built-in depth (mm) : 70
Release characteristic : C
Number of poles (total) : 4
Number of protected poles : 3
Rated current (A) : 40
Rated voltage (V) : 400
Rated insulation voltage Ui (V) : 440
Rated impulse withstand voltage Uimp (kV) : 4
Rated short-circuit breaking capacity Icn according to EN 60898 at 230 V (kA) : 6
Voltage-type : AC
Rated short-circuit breaking capacity Icn according to EN 60898 at 400 V (kA) : 6
Rated short-circuit breaking capacity Icu according to IEC 60947-2 at 230 V (kA) : 10
Rated short-circuit breaking capacity Icu according to IEC 60947-2 at 400 V (kA) : 10
Frequency (Hz) : 50 Hz to 50 Hz
Current limiting class : 3
Flush-mounted installation : No
Concurrently switching neutral conductor : Yes
Pollution degree : 3
Additional equipment possible : Yes
Width in number of modular spacings : 4
Ambient temperature during operating (°C) : -25 °C to 55 °C
Connectable conductor cross section multi-wired (mm²) : 0.75 mm² to 35 mm²
Connectable conductor cross section solid-core (mm²) : 0.75 mm² to 35 mm²
Explosion-proof : No