Contactor
3-pole contactor · 24 V DC coil · main contacts 9 A (AC-3, 4 kW motor) · auxiliary 13–14 normally open for a hold-in (latching) circuit · pulls in above 80 %, drops out below 40 %
Try it on the benchThe lab drops it on an empty bench and opens its datasheet card.
Typical part: 3-pole contactor
Pins
- A1 coil
- A2 coil
- L1
- T1
- L2
- T2
- L3
- T3
- 13 aux NO
- 14 aux NO
Ratings and limits
| Coil | 24 V DC coil |
|---|---|
| Main contacts | 9 A AC-3 (4 kW motor) |
| Auxiliary | 13–14 normally open |
How to use it
START (NO) energises the coil; the 13–14 contact holds it in after you let go; STOP (NC) breaks the hold. This latch is the basis of every motor starter.