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Dayton 30PT66 1/2 HP 1725 RPM 56H frame motor open drip proof cradle base

Dayton

Dayton 30PT66 1/2 HP 1725 RPM 56H Frame Motor

SKU CH-C2SJ-S2YW1

Single-phase capacitor-start/run motor delivers 1/2 hp at 1,725 rpm with 115/230 V operation and 56H frame

  • Product weight26
  • Product typeClosed Base
  • Capacitor-start/run design delivers reliable single-phase starting torque
  • 1/2 HP at 1,725 RPM suits continuous-duty fan applications
  • Dual-voltage 115/230 V AC with 5.0/2.6 A full-load current
  • Open drip-proof enclosure and auto thermal protection for 40 °C ambient
  • 56H frame with cradle base enables horizontal mounting

Motor identity and purpose

The Dayton 30PT66 is a single-phase capacitor-start/run motor rated at 1/2 hp and 1725 RPM on a 56H frame. It runs on 115/230V AC at 60 Hz with a 1.25 service factor and draws 5.0 or 2.6 amps at full load.

Ideal and non-ideal users

This motor suits equipment requiring continuous-duty, open drip-proof operation in ambient temperatures up to 40°C with automatic thermal protection. Builders needing an inverter-rated drive, a different mounting style, or a higher horsepower rating should consider other options.

Build integration

The cradle base and horizontal mounting position simplify installation on compatible equipment frames. Dual-voltage wiring frees the installer to match the supply without a transformer, while the 76.2 efficiency rating helps keep running costs predictable.

How it compares

Measured against everything we stock in Fan Motors, Parts & Clip-On Fans, at today’s prices. Recalculated every night.

Price $434.99
Pricier than about 90% of the 473 comparable items (median $38.99).

Specifications

Product
Brand nameDAYTON
Product typeClosed Base

Questions about this item

What voltage supply and wiring does the 115/230 V AC motor need to run?

Wire the motor for either 115 V or 230 V single-phase AC; at full load it draws 5.0 A on 115 V or 2.6 A on 230 V.

Will the 56H frame and cradle base match the mounting holes on my existing fan housing?

The motor uses a standard NEMA 56H frame with a cradle base for horizontal mounting; verify your housing bolt pattern against the 56H dimensions before installing.

How can I confirm the motor is delivering its rated output after installation?

Measure running current — it should be near 5.0 A at 115 V or 2.6 A at 230 V — and check that shaft speed settles at 1,725 RPM under load.

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