Series 5SM3 RCCBs
Residual Current operated circuit breaker for Personnel and fire protection
Free from FCKW and silicone
2 or 4 pole
Instant tripping, surge current withstand capability >1kA
Mains connection alternatively from above or underneath
Reciprocally sleeve terminals with wire protection
Lower combination clamp for the simultaneous connection of bus bars and leaders
Safe and rapid connection of the feeder cables due to relocation of busbar at the rear
N-Connection on the left allows easy busbar mounting with pin busbar if the miniature circuit breakers are fitted on the right.
DIN rail mounting (TH 35 according to DIN EN 60715)
Equipment life span: >10 000 Switching cycles
An auxiliary circuit switch can be fitted to the right hand side of the enclosure by the customer
Operating handle and test button can be locked by means of a hand locking device
Enclosure: IP20
Dimensions (HxD): 90x70mm
Dimensions (width): 2 pole 36mm; 4 Pole 72mm
Ambient temperature: -5→+45 °C
Standards
IEC/EN 61008
Standards
IEC/EN 61008
Siemens RCDs, RCBOs, RCCBs and MCBs
Type B characteristic offers instantaneous short circuit response level of 3-5 x normal rated current, making it suitable for circuits with moderate inrush currents such as filament lamps, heating loads and most domestic/small building protection applications.,Type C characteristic offers short circuit response of 5-10 x normal rated current, making it ideal for circuits with higher inrush currents such as motor control and fluorescent lighting installations in industrial buildings where nuisance tripping might occur if a faster type was used. Type D characteristic is designed for high inrush loads. Magnetic trip point - 10 to 20 times In rating. Thermal trip point - 1.13
to 1.45 protector rating. Type AC characteristic ensure tripping for sinusoidal, alternating currents, whether they be quickly applied or slowly to increase.
