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BC138 The ABB/Baldor BC138 is a 1/100-1/3 HP SCR DC speed control designed for shunt wound and permanent magnet DC motors. It operates on 115 VAC input and provides 0-90 VDC output.
Mfr Part #:

BC138

Available from 1 distributors
Mfr Name: ME
ME
The ABB/Baldor BC138 is a 1/100-1/3 HP SCR DC speed control designed for shunt wound and permanent magnet DC motors. It operates on 115 VAC input and provides 0-90 VDC output.
✓ Total Stock: 38 pcs
$ Price Range: $0.77

BC138 Available from 1 distributor

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✓ Non-Authorised
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38 pcs
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BC138 Specifications Quick View

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BC138 Description

Short technical summary and product information.

The ABB/Baldor BC138 is a versatile SCR DC speed control suitable for applications requiring variable speed and constant torque, such as conveyors, mixers, and packaging machinery.

 

This control features a full-wave SCR design with a free-wheeling diode (NEMA type K) and a field power supply compatible with both shunt wound DC motors and permanent magnet motors. It offers adjustable acceleration, deceleration, current limit, IR compensation, minimum speed, and maximum speed settings. For user convenience, it includes a current limit indicating LED and a 5K speed control potentiometer.

 

Built with protection in mind, the BC138 incorporates an anti-demagnetization circuit to safeguard PM motors and the SCR power bridge against direct shorts. A noise rejection circuit is also integrated to prevent false starts and protect the SCRs. The unit is recognized by UL and cUL.

 

Specifications include a maximum horsepower rating of 1/3 HP, an output amperage of 3.5A, a 115 VAC input voltage, and a 0-90 VDC output voltage. The enclosure is NEMA 1 rated, and it does not have an integrated heat sink.

BC138 Quick Information

Product Type: DC Speed Control
Series: KBWM
Canonical Name: ABB/Baldor BC138 SCR DC Speed Control
Subcategory: SCR DC Speed Control

BC138 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BC138 Estimated Pricing

Qty Low High
1+ $0.77 $0.77

Estimated market price range - modelled values for guidance only, not live distributor offers.

BC138 Features

  • Full wave SCR DC control with free wheeling diode.
  • Compatible with shunt wound and permanent magnet motors.
  • Adjustable speed, accel, decel, and current limit.
  • Includes current limit indicator LED and 5K speed pot.
  • UL and cUL recognized for safety and reliability.

BC138 Applications

  • Ideal for conveyor belt speed control.
  • Suitable for mixer speed regulation.
  • Used in packaging machinery automation.
  • Provides constant torque variable speed.

BC138 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum horsepower for the Baldor BC138 DC Speed Control?

The maximum horsepower rating for the Baldor BC138 is 1/3 HP.

What input voltage does the Baldor BC138 require?

The Baldor BC138 requires a 115 VAC input voltage.

What is the output voltage range of the Baldor BC138?

The output voltage range of the Baldor BC138 is 0-90 VDC.

What types of DC motors can be used with the Baldor BC138?

The Baldor BC138 can be used with shunt wound DC motors as well as permanent magnet motors.

Does the Baldor BC138 have adjustable speed settings?

Yes, the Baldor BC138 features adjustable acceleration, deceleration, current limit, IR compensation, minimum speed, and maximum speed.

Is the Baldor BC138 UL recognized?

Yes, the Baldor BC138 is UL and cUL recognized.

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