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Dayton 4Z447 magnetic disc brake, silver metal housing, 4.375 inch diameter, 115/230V AC coil

Dayton

Dayton 4Z447 Magnetic Disc Brake 4.375 in 115/230V AC

SKU CH-6KR5-QYZXQ

Magnetic disc brake delivering 1.5 ft-lb static torque at 115/230V AC for compatible gearmotor conversions

  • TypeBrakes & Clutches
  • Delivers 1.5 ft-lb static torque for reliable stopping
  • Dual 115/230V AC coil suits multiple supply voltages
  • Rated 1/3 hp at 1725 RPM and 3/4 hp at 3450 RPM
  • Fits 4.375 in disc with 5.69 in outside diameter
  • CSA certified and includes fan plus endbell for TEFC conversion

Dayton 4Z447 Magnetic Disc Brake Overview

The Dayton 4Z447 is a magnetic disc brake designed for industrial machinery requiring reliable stopping power. It operates on 115/230V AC supply and delivers a static torque of 1.5 ft-lb. The unit includes a replacement fan and endbell for converting TEFC gearmotors into brake gearmotors. It is CSA certified for safety compliance.

Suits 1/3 hp and 3/4 hp Gearmotor Conversions

This brake suits maintenance teams converting compatible Dayton gearmotors rated at 1/3 hp at 1725 RPM or 3/4 hp at 3450 RPM. It fits models including 2Z842, 2Z845, 6K351, 6K354, 6K369, 6K375, 6K383, 6K396, 6K506, 6K583, 6Z399, 6Z400, and 6Z403. Builders needing a different torque rating or voltage should look at other braking solutions.

1.5 ft-lb Static Torque Rating

The decisive specification is the 1.5 ft-lb static torque, which determines the maximum holding force available. This rating matches the 1/3 hp at 1725 RPM and 3/4 hp at 3450 RPM motor applications listed. Verify your gearmotor torque requirement against this figure before ordering. The brake diameter is 4.375 in with an outside diameter of 5.69 in.

Highlights

  • Delivers 1.5 ft-lb static torque for reliable stopping
  • Dual 115/230V AC coil suits multiple supply voltages
  • Rated 1/3 hp at 1725 RPM and 3/4 hp at 3450 RPM
  • Fits 4.375 in disc with 5.69 in outside diameter
  • CSA certified and includes fan plus endbell for TEFC conversion

Specifications

TypeBrakes & Clutches

Questions about this item

What does 1.5 ft-lb static torque mean for a motor running at 1725 RPM?

The 1.5 ft-lb static torque rating means the brake can hold a load of one-third horsepower at 1725 RPM without slipping when power is removed.

How does the 115/230V AC coil voltage limit wiring options?

The coil operates on either 115V or 230V AC single-phase supply, so the brake must be wired to match the available line voltage and cannot be used on DC or three-phase circuits.

Will the 5.69 in outside diameter fit my existing TEFC gearmotor?

The 5.69 in outside diameter and 4.38 in overall length match the replacement fan and endbell kit designed to convert compatible TEFC gearmotors to brake gearmotors.

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