Lad402p Schematic Top Updated
The LAD402P supports up to 3600 operations per hour with AC-15 loads, but verify against your contactor’s duty cycle.
| Model | Contact Config | Top Schematic Difference | |-------|----------------|--------------------------| | LAD402P | 2 NO + 2 NC | Standard simultaneous action | | LAD4P2 | 1 NO + 1 NC (early make) | NO closes 2ms before NC opens | | LAD4P3 | 1 NO + 1 NC (late break) | NC opens 2ms before NO closes | | LAD401P | 1 NO + 1 NC | Only one set of contacts physically smaller | | LAD4P4 | 4 NO | All contacts NO — used for purely sealing circuits | lad402p schematic top
NC-1: Terminal 21 ----| (closed) ---- Terminal 22 NC-2: Terminal 31 ----| (closed) ---- Terminal 32 The LAD402P supports up to 3600 operations per
Each pole has two screws (line and load). For NO-1: 13 (in) and 14 (out). Some older schematics label by pole only. Some older schematics label by pole only
By memorizing the state table (coil off → NC closed, NO open; coil on → opposite) and practicing the manual actuation test, you can quickly diagnose 90% of field failures without any specialized tools.