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Dayton 48ZJ85 three-phase motor steel frame 56H base mounted

Dayton

Dayton 48ZJ85 Three-Phase Motor 1 HP 56H Frame 208-230/460V

SKU CH-CRVZ-J8B41

A three-phase general-purpose motor delivers 1 HP at 155 RPM in a 56H frame with 208-230/460V operation and 86.5% nominal efficiency

  • Delivers 1 HP output for demanding industrial tasks
  • Totally enclosed fan-cooled design protects internal components
  • Dual-voltage 208-230/460 V suits varied power supplies
  • 5 % nominal efficiency reduces energy consumption
  • 25 service factor handles intermittent overloads

Three-Phase General Purpose Motor

The Dayton 48ZJ85 is a 1 HP three-phase motor built for continuous industrial duty. Its 56H frame and rigid base mounting suit replacement and new-installation scenarios in conveyors, pumps and fans. Operators needing a standard NEMA footprint with dual-voltage flexibility will find it a direct fit.

Dual-Voltage 208-230/460V Operation

The motor runs on 208-230V or 460V three-phase supply at 60/50 Hz, drawing 3.5 A at low voltage and 1.8 A at high voltage. Service factor is 1.25 and insulation class F, so sustained overloads beyond nameplate rating are not covered. Thermal protection is not included, so external overload devices must be provided by the installer.

Upgrade from Single-Phase or Lower-Efficiency Units

Replacing a single-phase motor of the same frame eliminates starting capacitors and reduces current imbalance on three-phase mains. The 86.5 % nominal efficiency cuts losses versus older standard-efficiency designs, making the swap worthwhile when the load runs continuously and three-phase power is available. Buyers who only have single-phase supply cannot use this motor.

Highlights

  • Delivers 1 HP output for demanding industrial tasks
  • Totally enclosed fan-cooled design protects internal components
  • Dual-voltage 208-230/460 V suits varied power supplies
  • 5 % nominal efficiency reduces energy consumption
  • 25 service factor handles intermittent overloads

Specifications

BrandDAYTON

Questions about this item

Should I wire this motor for 208–230 V or 460 V?

The motor is dual-voltage; connect the leads for 208–230 V to draw 3.5 A full-load current, or for 460 V to draw 1.8 A.

What does the 1155 RPM nameplate speed mean once the motor is loaded?

At full load the motor runs at 1155 RPM, delivering 1 HP continuously with a 1.25 service factor for short overloads.

How does the three-phase supply affect installation?

A three-phase 60/50 Hz supply is required; the motor operates in either rotation direction and is rated for 40 °C ambient.

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