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Dayton capacitor-start/run motor 1/2 hp 56 frame open drip proof rigid base

Dayton

Dayton 103874.00 Capacitor-Start/Run Machinery Motor 1/2 hp 1725 RPM 115/208-230V 56 Frame

SKU CH-7W4K-A62GG

Capacitor-start/run motor delivers 1/2 hp at 1725 RPM on 115/208-230V AC in a 56-frame open drip-proof enclosure

  • weight20
  • typeClosed Base
  • 1/2 hp power drives machinery reliably
  • Capacitor-start/run design delivers strong starting torque
  • Dual-voltage 115/208-230 V fits common supplies
  • 56 frame with rigid base simplifies mounting
  • Continuous duty at 40 °C ambient handles steady loads

What this motor is and who needs it

The Dayton 103874.00 is a single-phase, capacitor-start/run machinery motor rated at 1/2 hp and 1,725 RPM. It suits maintenance teams and OEMs replacing a failed drive on pumps, fans, conveyors or other continuous-duty industrial equipment that calls for a 56-frame, open drip-proof enclosure.

The specification that decides fit

The nameplate shows dual-voltage 115/208-230 V AC at 60 Hz with full-load currents of 4.6 A at 115 V and 2.4-2.3 A at the higher voltages, plus a 1.25 service factor. Match those electrical values and the 56-frame rigid-base mounting pattern to the original motor before ordering.

Installation notes and common pitfalls

The rigid base bolts directly to a flat mounting surface and the shaft rotates CW/CCW for flexible coupling. No thermal protection is built in, so external overload protection must be supplied by the installer. Verify the driven load does not exceed the 1.25 service factor and that ambient temperature stays within 40 °C to avoid premature winding failure.

Highlights

  • 1/2 hp power drives machinery reliably
  • Capacitor-start/run design delivers strong starting torque
  • Dual-voltage 115/208-230 V fits common supplies
  • 56 frame with rigid base simplifies mounting
  • Continuous duty at 40 °C ambient handles steady loads

Specifications

BrandDAYTON
weight20
typeClosed Base

Questions about this item

What does the 1/2 hp rating mean once the motor is installed in my machine?

It delivers half a horsepower at the shaft continuously at 1725 RPM with a 1.25 service factor for short-term overload capacity.

How does the 115/208-230V dual-voltage design work in practice?

The motor is wired for either 115 V or 208-230 V single-phase supply and draws 4.6 A at 115 V or 2.4-2.3 A at the higher voltages on 60 Hz power.

Will the 56 frame with rigid base bolt directly to my existing mount?

Yes, the NEMA 56 frame dimensions and rigid base mounting match standard 56 frame bolt patterns for direct replacement.

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