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Dayton 20RK79 three-phase condenser fan motor 1 hp 850 RPM 56YZ frame open enclosure belly band mount

Dayton

Dayton 20RK79 condenser fan motor 1 hp three-phase 850 RPM 208-230/460V 56YZ frame

SKU CH-G7J6-YC1Y9

Three-phase condenser fan motor delivers 1 hp at 850 RPM with 208-230/460V operation and 56YZ frame

  • Three-phase power delivers efficient 1 hp output at 850 RPM
  • Dual-voltage 208-230/460V AC suits multiple supply configurations
  • 56YZ frame with belly-band mount fits standard condenser openings
  • Inverter-rated design allows variable-speed control without added stress
  • Class F insulation handles 70 °C ambient for continuous duty

Industrial condenser fan motor

The Dayton 20RK79 is a three-phase condenser fan motor rated at 1 hp and 850 RPM. It operates on 208-230/460V AC at 60 Hz with a 56YZ frame. The motor draws 5.0 amps at low voltage and 2.5 amps at high voltage, suited for continuous duty in HVAC and refrigeration equipment.

Upgrade from single-phase or lower output units

This motor replaces single-phase alternatives where three-phase power is available and higher efficiency is required. The jump is worth it when the application demands continuous operation at up to 70 degrees C ambient temperature and inverter-rated performance for variable speed control. Thermal protection via T-Stat and Class F insulation support long service life under demanding conditions.

Fits belly-band mounts with reversible rotation

The open air-over enclosure requires external airflow for cooling and mounts via belly band on a 56YZ frame. Shaft rotation is field-selectable between CW and CCW to match existing fan blades. Inverter-rated design frees up control options for speed modulation. Ensure the driven load matches the 1 hp output and 850 RPM nameplate speed for proper operation.

How it compares

Measured against everything we stock in Industrial Motors & Machine Parts, at today’s prices. Recalculated every night.

Price $965.99
Pricier than about 91% of the 397 comparable items (median $91.99).

Specifications

Product
Brand nameDAYTON

Questions about this item

What belly-band diameter does the 56YZ frame motor need to clamp onto?

The motor uses a NEMA 56YZ frame with a belly-band mounting ring; match the band to the motor's 56-frame diameter when ordering the bracket.

How do you wire the dual-voltage motor for 230 V or 460 V three-phase supply?

Configure the nine leads in low-voltage delta for 208-230 V (5.0 A) or high-voltage wye for 460 V (2.5 A); verify rotation is CW/CCW as required before final tightening.

When should the internal thermal protector (T-Stat) be checked or the motor replaced?

Inspect the T-Stat if the motor trips repeatedly at the 70 °C ambient limit; continuous duty and Class F insulation mean replacement is only needed if winding resistance drifts or the protector fails to reset.

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