Used during experiments in extra-low and low voltage circuits, these heavy-duty variable
resistors have shockproof housings and built-in ground sockets.
Use them as a continuously variable series resistor, for setting power levels, as fixed resistor or
as voltage divider.
Resistance tolerance: 10% from nominal value
Max. permissible power: 320 W (continuous operation), 640 W (max. 15 min)
