| Frequency | 50 Hz; 60 Hz |
| Electrical Connections | lug connectors |
| Application | PowerPro Definite Purpose Contactor |
| Dimensions | 3.1 in. high x 3.62 in. wide x 2.4 in. deep |
| UL | Component Recognized: File No. 14480, Guide No. NLDX2 |
| CSA | Certified: File No. LR6535 |
| Temperature Ratings (F) | -4 F to +149 F |
| Switching | DPST |
| Contact Ratings (AFL) | 40 A @ 240/277 Vac, 480 Vac, 600 Vac |
| Contact Ratings (resistive) | 50 A @ 240/277 Vac, 480 Vac, 600 Vac |
| Poles | 3 |
| Contact Connections (coil) | 1/4 in. quick-connects and #6 screws |
| Coil Ratings Voltage | 120 Vac |
Description
The DP3040B5002 is a definite purpose contactor from Resideo (Honeywell Home), rated 40 amps and built with 3 poles and a 120 Vac coil. It is the switch that lets a low-power control circuit start a compressor, a condenser fan, or an electric heat bank.
A definite purpose contactor is sized for one job rather than for general industrial duty, which is why it costs a fraction of a general purpose starter and still carries the inrush of an air conditioning compressor. The coil pulls the contacts closed when the thermostat or control board calls; when the call drops, spring pressure opens them.
Three poles break all three legs of a three-phase supply. This is the arrangement for commercial condensing units and three-phase electric heat.
The 120 Vac coil is driven from line voltage, which suits equipment where no low-voltage control transformer is present.
The PowerPro line is the heavy-service tier: it is built for the contact wear that comes with frequent cycling on a unit that short-cycles in shoulder season.
Match poles, coil voltage and amp rating to the contactor you are replacing. A contactor with the right coil but too few poles will run the equipment and leave a leg energized at the unit.
- Brand: Resideo (Honeywell Home)
- Manufacturer Part #: DP3040B5002/U
- Poles: 3
- Coil voltage: 120 Vac
- Rating: 40 A
- Series: PowerPro
- UPC: 085267120937
- Category: Contactors

