Resideo DP2020A5022/U 1 Pole 24 Vac Definite Purpose Contactor

Item #: HONE-DP2020A5022/U
Mfr. part #: DP2020A5022/U
UPC: 085267133494

Key specifications

Frequency50 Hz; 60 Hz
Electrical Connectlug connectors
Temperature Rating-4 F to +149 F
SwitchingDPST
Poles2

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$27.18

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Shipping details

Shipping weight: 0.55 lb
Box size: 3.45 × 2.7 × 2.4 in

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Brand	Resideo
Manufacturer part #	DP2020A5022/U
Frequency	50 Hz; 60 Hz
Electrical Connections	lug connectors
Application	PowerPro Definite Purpose Contactor
Dimensions	2.2 in. high x 2.5 in. wide x 3.31 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)	30 A @ 240, 277, 480, 600 Vac
Contact Ratings (resistive)	25 A @ 240/277 Vac, 480 Vac, 600 Vac
Poles	2
Contact Connections (coil)	1/4 in. quick-connects
Coil Ratings Voltage	24 Vac
UPC	085267133494

DP2020A5022 has been discontinued by the manufacturer (2025-08). Resideo's PowerPro Deluxe successor with the same ratings is DPL2020A5022 (confirm fit before ordering).

The DP2020A5022 is a definite purpose contactor from Resideo (Honeywell Home), rated 20 amps and built with 1 pole and a 24 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.

A single-pole contactor switches one leg of the supply and leaves the other connected. It is the common arrangement on residential condensing units, where the manufacturer has already accounted for the unswitched leg in the unit wiring.

The 24 Vac coil is driven straight from the low-voltage control transformer, so the thermostat circuit never carries line current.

Confirm the pole count before ordering. The part number and the product title disagree on this item. Send us the model stamped on the contactor you are replacing and we will confirm the match.

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.