General
Release characteristic	Other
Number of poles (total)	3
Number of protected poles	3
Rated current	40
Rated insulation voltage Ui	1500
Rated impulse withstand voltage Uimp	8
Voltage type	DC
Frequency	0
Current limiting class	3
Over voltage category	3
Pollution degree	2
Width in number of modular spacings	4.5
Built-in depth	82.5
Degree of protection (IP)	IP20
Ambient temperature during operating	70
Connectable conductor cross section multi-wired	50
Connectable conductor cross section solid-core	70
Power loss	11.1
Concurrently switching N-neutral
Additional equipment possible
Explosion-proof
Flush-mounted installation

The high-performance circuit breakers in the S800S-UC series protect cables and lines against overload and short circuits. They have a rated short-circuit breaking capacity of 50kA at 250V (single-pole), 500V (two-pole) and 750V (three- and four-pole) DC. With its thermal tripping mechanism, it offers equally effective protection against overload, as does its electromechanical tripping mechanism against short circuits. The S800S-UC complies with the IEC/EN 60947-2 standard and enables use for industrial purposes. Numerous approvals make it suitable for worldwide use and the extensive range of accessories makes it even more convenient to use. Thanks to the very fast arc extinguishing, your installation is optimally protected with the S800S-UC.