Transformer relay, Product range: Transformer relay ZW7, Description: Test/Off button, Reset button manual/auto, Free trip, Protection against heavy starting, Mounting type: Single installation, Auxiliary switch N/O = Normally open: 1 N/O, Auxiliary switch N/C = Normally closed: 1 N/C, Standards and regulations: IEC/EN 60947,0660, Protection class: IP00
