The Mitsubishi Electric THN18KP is a thermal overload relay — the TH-N18KP variant — with a 1 Normally Open plus 1 Normally Closed contact set. Rated switching current is 18 A, insulation voltage 690 V AC, and the housing carries IP20 protection. Dimensions are 59 x 54 x 80 mm, so it tucks into a standard control-panel footprint alongside the contactor it pairs with.
Lifecycle stage is listed as mature. No obsolescence notice is on record.
Service short-circuit breaking capacity is rated at 600 V AC.
