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Small transparent unit bearing motor with cast iron frame, rear foot mounting, horizontal or vertical shaft up position

Dayton

Dayton 4YFK3 Unit Bearing Motor 1/185 hp HVAC control

SKU CH-DK8Z-FABXA

A shaded-pole unit bearing motor rated at 1/185 hp and 230 V AC for HVAC control applications

  • ColorTransparent
  • Runs on 230 V AC for standard HVAC wiring
  • Shaded-pole design delivers 4 W output with 0.17 A draw
  • Impedance thermal protection guards against overheating
  • Totally enclosed air-over enclosure suits 40 °C ambient
  • Cast-iron frame mounts horizontally or vertically shaft-up

Motor design and power

This Dayton unit bearing motor is a single-phase shaded-pole motor rated at 1/185 hp and four watts output. It runs on 230 V AC at 50 or 60 Hz with a full-load current of 0.17 A and a nameplate speed of 1,550 rpm. The cast-iron frame is totally enclosed for air-over cooling and carries Class A insulation with impedance thermal protection.

Fit and mounting constraints

The motor suits HVAC control applications that require a rear or foot-mounted, non-standard frame in a horizontal or vertical shaft-up orientation. Its CCWLE rotation and maximum ambient temperature of 40 °C limit use to environments that stay within that thermal range. Builders needing a standard NEMA frame, a different rotation direction or higher horsepower should look elsewhere.

Shaft rotation and enclosure

The shaft turns counter-clockwise when viewed from the lead end and the enclosure is totally enclosed air-over, so the motor must be installed where airflow passes over the housing for proper cooling.

Highlights

  • Runs on 230 V AC for standard HVAC wiring
  • Shaded-pole design delivers 4 W output with 0.17 A draw
  • Impedance thermal protection guards against overheating
  • Totally enclosed air-over enclosure suits 40 °C ambient
  • Cast-iron frame mounts horizontally or vertically shaft-up

Specifications

BrandDAYTON
ColorTransparent

Questions about this item

What power supply must I already have for this 230V AC motor?

You need a 230V AC supply rated for at least 0.17 A at 50 or 60 Hz.

Can I run this 1/185 hp motor on the same 230V circuit as my older shaded-pole fan?

Yes, it draws only 0.17 A at 230V AC, so it will share the circuit without overload.

How do I confirm the motor is running correctly after wiring it?

Verify the shaft turns counter-clockwise from the lead end at about 1,550 RPM and the housing stays below 40 °C.

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