Product

3SCH8, modular contactors

Independent power supply with build-in power source,directly draws power from the incoming end to avoid the risk of protection function failure caused by external power supply failure.

● Overload protection
● Short circuit protection
● Isolation
● Controlling
● Used in residential building, non-residential building, industry, energy and infrastructure

Functions

● Remote switching and controlling of power circuits

● Used in building automation,?controlling of small pumps,ventilations, heating systems, lighting systems, and so on

Technical specifications

Type	3SCH8-25	3SCH8-63
Standards	IEC 61095	IEC 60947-4-1
Number of poles	2, 4
Type of current	AC
Frequency (Hz)	50/60
Rated voltage Un (V)	230/400
Rated current In in AC-7a / AC1 (A)	10, 16, 20, 25	25, 32, 40, 63
Rated current In in AC-7b / AC1 (A)	4, 5.5, 7, 8.5	8.5, 12, 15, 25
Rated power in AC3 (Kw)
230 V	2-5	5-13
400 V	6-13	15-40
Control circuit voltage (V)	230/400
Mechanical life (times)	300,000
Electrical life (times)
AC-7a / AC1	10,000	80,000
AC-7b / AC1	50,000	40,000
Degree of protection	IP20, with connected conductors
Conductor cross-sections
Solid and stranded (mm²)	2-25
Finely stranded with end sleeve (mm²)	2-25
Terminals
Terminal tightening torque (N·m)	0.8-2.4
Ambient temperature (°C)	-5 ~ +40, max. 95 % humidity
Storage temperature (°C)	-40 ~ +75
Connection capacity (mm²)	1-25