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Small silver cylindrical motor with cradle base and protruding shaft

FASCO

FASCO D1104 1/50 HP 115V 550 RPM machinery motor

SKU CH-ZRKG-ZR8EB

Single-phase shaded-pole condenser fan motor delivers 1/50 hp at 550 RPM on 115 V AC with 0.9 A full-load current, auto thermal protection and cradle-base mounting

  • 1/50 HP motor delivers 550 RPM condenser fan performance
  • Shaded-pole single-phase design runs on 115 V AC at 0.9 A
  • Automatic thermal protection with Class B insulation rated to 40 °C ambient
  • Cradle-base mounting fits 3.3 frame as direct Loren Cook 42865 replacement
  • 60 Hz operation with fixed CWSE rotation for consistent airflow

FASCO D1104 1/50 HP condenser fan motor

The FASCO D1104 is a single-phase shaded-pole motor rated at 1/50 HP and 550 RPM. It operates on 115V AC at 60 Hz and draws .9 amps at full load. The motor carries an OEM replacement designation for Loren Cook part 42865 and fits a 3.3 frame cradle base.

Thermals noise and power draw

Automatic thermal protection and Class B insulation allow continuous operation in ambient temperatures up to 40 degrees C. The open air-over enclosure relies on the application airflow for cooling, keeping the motor itself quiet. At 115V the draw remains .9 amps; the motor is not usable at 200V or 208V.

Replaces Loren Cook 42865 in cradle-base units

This motor directly replaces the Loren Cook 42865 where a 3.3 frame cradle mount and clockwise shaft rotation are required. The upgrade is worth it when the original motor has failed or lost speed under load. It will not suit applications needing multi-speed operation or a different voltage.

Highlights

  • 1/50 HP motor delivers 550 RPM condenser fan performance
  • Shaded-pole single-phase design runs on 115 V AC at 0.9 A
  • Automatic thermal protection with Class B insulation rated to 40 °C ambient
  • Cradle-base mounting fits 3.3 frame as direct Loren Cook 42865 replacement
  • 60 Hz operation with fixed CWSE rotation for consistent airflow

Specifications

BrandFASCO

Questions about this item

How do I install the cradle-base motor and which shaft-rotation detail do installers often miss?

Mount the 3.3 frame on its cradle base, wire the single-phase 115 V supply to the shaded-pole windings, and verify the shaft turns CWSE before securing the fan blade — reversed rotation is the common error.

What maintenance will the auto-reset thermal protection and Class B insulation require over time?

The auto thermal protector resets itself after a trip, so no manual reset is needed; keep the open air-over vents clear of dust and ensure ambient temperature stays below 40 °C to preserve the Class B insulation life.

At what point does the 0.9 A full-load current hit its thermal limit during continuous operation?

Running at the nameplate 0.9 A and 550 RPM with a 1.0 service factor in 40 °C ambient will bring the motor to its Class B temperature ceiling first; sustained loads beyond nameplate amps accelerate that limit.

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