The SW121 series of contactors has been designed for direct current loads. They have double breaking main contacts with silver alloy contact tips, which are weld resistant, hard wearing and have excellent conductivity.
Alternating Currents: These contactors are not polarity sensitive thus they can be used for switching A.C. currents.
Compact Size: The contactors are compact in size and are fully serviceable with a full range of spare parts available.
Installation: Mounting is by means of 5mm tapped holes in the switch frame together with a range of mounting brackets complete with screws and washers.
Operating Coils: Available with 6-240v DC coils, coil connections are by means of 6mm spades.
Auxiliary Contact: Denoted by 'A', a double circuit normally open, normally closed microswitch auxiliary contact can be fitted, ratings as shown below.