TeSys D thermal overload relays, remote electrical tripping, 220…230 V DC/AC. range: TeSys – product or component type: electrical remote tripping – device short name: LA7D – accessory / separate part category: electrical accessory – product compatibility: LR2D, LR3D15.., LR3D33.., LR3D35.., LR3D43.., LRD15.., LRD33.., LRD43.. – [Uc] control circuit voltage: 220/230 V AC 50/60 Hz, 220/230 V DC.