General
Rated control supply voltage Us at AC 50HZ	250
Rated control supply voltage Us at AC 60HZ	250
Rated control supply voltage Us at DC	250
Voltage type for actuating	AC/DC
Rated operation current Ie, 400 V	3
Connection type auxiliary circuit	Screw connection
Mounting method	DIN-rail/screw
Number of auxiliary contacts as normally closed contact	2
Number of auxiliary contacts as normally open contact	6
Number of auxiliary contacts as normally closed contact, delayed switching	0
Number of auxiliary contacts as normally open contact, leading	0
Number of auxiliary contacts as change-over contact	0
Depth	110.5
Height	86
Operating voltage at AC 50 Hz	690
Operating voltage at AC 60 Hz	690
Operating voltage at DC	6
Rated operation current	3
Rated switch current	4
Voltage type (operating voltage)	AC
Width	45
Interface
With LED indication
Manual operation

NF51/11 contactor relays are used to switch auxiliary and control circuits, including using the integrated delay/pre-run contacts. (1NO/1NC)
NF contactor relays have an electronic coil interface that allows a wide control voltage range and can handle large control voltage fluctuations. They have built-in overvoltage protection and do not require additional suppression elements.