The LADN313G is a TeSys Deca auxiliary contact block with a 3NO+1NC pole configuration, designed for front mounting on TeSys D contactors and reversing starters. It uses spring terminals accepting up to 2.5 mm² flexible or rigid wire, two cables per terminal. Rated operational current varies by duty: 6 A at 120 V AC-15, 1.04 A at 690 V AC-15, 0.55 A at 125 V DC-13, and 0.1 A at 600 V DC-13. The conventional free air thermal current is 10 A at 60 °C, and rated insulation voltage is 690 V per IEC 60947-5-1, 600 V per UL and CSA. Making capacity is 140 A AC and 250 A DC per IEC 60947-5-1. The block carries IP2X protection and is TH-treated per IEC 60068 for tropical environments.
For a pin-compatible replacement within the TeSys D family, a cross-reference search against current TeSys Deca auxiliary blocks with the same 3NO+1NC configuration and spring terminals is needed — verify fit against the specific contactor frame and mounting location.
Integration notes
Mounts on the front of TeSys D contactors and reversing starters. The 44 mm width, 48 mm height, and 42 mm depth fit the standard EN 50012 profile. Spring terminals reduce wiring time compared to screw-clamp versions — no retorquing needed after commissioning. Minimum switching capability is 5 mA at 17 V — sufficient for PLC input signals but verify against low-energy solid-state loads.