This accessory is a terminal spreader for 3-pole circuit breakers ComPact NSX100/160/250 and switch-disconnectors ComPact INS/INV250. They are screwed onto the circuit breaker terminals to increase the distance between the poles from 35 mm to 45 mm. The rated current is up to 250 A. These terminal spreaders are supplied with flexible phase separators for insulation. They are supplied as a set of 3 pieces.