Fractional SCR Drive, PM

ABB Baldor-Reliance Fractional SCR Drive permanent magnet DC motors deliver dependable adjustable-speed performance with SCR drives—providing consistent torque and straightforward control for industrial machinery.

Simple, Reliable Adjustable Speed for Industrial Equipment

Designed to operate with SCR DC drives, these motors offer smooth speed regulation and stable torque across a wide operating range. Integral and adaptable tachometer options support precise speed feedback when tighter control is required. With a compact NEMA C-face design and industrial-duty construction, they are ideal for fractional-horsepower applications where simplicity and reliability matter most.

Technical data

Available from 1/4–5hp, Fractional SCR Drive permanent magnet DC motors feature NEMA C-face mounting, tach feedback options, Class F insulation, sealed bearings and 20:1 constant-torque performance for SCR-controlled systems.

Up to 5Hp

Power range 1/4-5Hp (0.2-3.7kW).

SCR drive Tachometer

Tachometer-adaptable models—including integral tach options—support closed-loop control and improved speed accuracy.

Enclosure TENV and TEFC

Designed for industrial environments.

Insulation Class F

for added thermal protection.

Adjustable speed SCR control

simple solution for speed adjustment and constant torque over a moderate range (≈20:1) without deploying a full AC VFD and inverter-duty motor.

Control Low speed, high torque

Permanent-magnet DC motors deliver strong torque at low speeds.

Explore the key features and benefits

ABB Baldor-Reliance® fractional SCR Drive permanent-magnet DC motors provide consistent torque and straightforward control for industrial machinery.

Drop-in design

NEMA C-face mounting with removable base allows flexible installation across a wide range of industrial equipment.

Precise Speed Control

Permanent-magnet DC performance delivers smooth, 20:1 constant torque performance across the speed range for accurate process control with SCR drives.

Feedback-Ready Design

Tachometer-adaptable models—including integral tach options—support closed-loop control and improved speed accuracy.

Industrial Reliability

Class F insulation and double-sealed bearings help ensure long service life in demanding applications.

Simple Integration

Optimized for SCR control, providing reliable speed control without the complexity of variable-frequency drive systems.

Related Documents

Direct Current (DC) motors, tachometers and drives

Brochure

At the heart of our DC motor lineup are the many sizes of our versatile permanent magnet (PM) DC motors. These range in output from 1/8 Hp to the industry’s only 5Hp. Ruggedness, dependability and ease of use are the reasons that ABB Baldor-Reliance PMDC motors are specified by more customers than any other.

ABB Baldor-Reliance DC Drive: Matched drive promotion

Product Note

For a limited time, ABB is offering a matched DC drive with every fractional Baldor-Reliance DC motor purchased (1/4-5Hp).

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