HVAC Actuators

How Do I Identify My Actuator Motor?

To identify your actuator motor, locate the 4-digit SPEC number stamped directly on the housing near the output shaft. This number is required before we can assist you with your replacement needs.

Identification diagram of a Multi Products Torque Box

How Do I Identify My Actuator Motor?

To identify your actuator motor, locate the 4-digit SPEC number stamped directly on the housing near the output shaft. This number is required before we can assist you with your replacement needs.

HVAC Actuators & Replacement Motors

Multi Products specializes in engineering our exclusive line of high-performance Torque Box actuator motors for commercial and residential HVAC systems. With over 50 years of manufacturing excellence, our actuators are the HVAC industry standard for reliable damper control and ventilation automation.

We maintain a robust inventory of in-stock HVAC actuator replacement motors ready for immediate shipment. If your specific model is not listed among the SPEC numbers below, we offer made to order, custom manufacturing with a lead time of only 7-10 business days. Contact us if your SPEC number is not listed below.

Important Ordering Information

  • Components: For springs, linkages, or specific damper hardware, please consult your original ventilation system installer or the damper manufacturer.
  • Grainger Distribution: SPEC numbers 3049 and 3050 are available directly via Grainger Industrial Supply (Part #24N066)
  • Technical Documentation: You can find wiring diagrams and more at the bottom of this page.
actuator 2447-B

In-Stock Listing

Spec #VoltageRotationSpecial Notes

​1868-E

120

CW

TB2001, 2 Flat X 1.13” Long Shaft, Conduit Connector,
8-32 Mounting

Details

2412-I

120

CCW

TB2001, 2 Flat X 1.13” Long Shaft, Conduit Connector,
8-32 Mounting

Details

2447-B

120

CW

TB2001, 0.19” SQ X 1.00” Long Shaft, Ratchet,
Flying Leads (back), 8-32 Mounting

Details

​2781-A

120

CW

TB2001, 2 Flat X 0.88” Long Shaft, Ratchet, Handybox (top),
8-32 Mounting

Details

​2781-AS

120

CW

TB2001, 0.19” SQ X 0.75” Long Shaft, Ratchet,
Handybox (top), 8-32 Mounting

Details

​2920

120

CCW

TB2001, 2 Flat X 1.50” Long Shaft, Conduit Connector,
8-32 Mounting

Details

​2985-E

120

CCW

TB2001, Dual Extensions, 2 Flat, 1.75” Long Shaft,
Handybox (top), 8-32 Mounting

Details

​2986-A

24

CCW

TB2001, Dual Extensions, 2 Flat, 1.75” Long Shaft,
Handybox (top), 8-32 Mounting

Details

3145

120

CCW

TB2001, 2 Flat X 1.13” Long Shaft, Conduit Connector,
8-32 Mounting

Details

3159-A

120

CW

TB2001, Dual Extension, Ø0.50” X 3.50” / Ø0.31” X 2.50” (front / back) Long Shaft, Ratchet, Flying Leads (right side),
8-32 Mounting

Details

3751

120/240

CW

TB2001, 2 Flat, 1.13” Long Shaft, Handybox (back),
8-32 Mounting

Details

3754

120/240

CCW

TB2001, Dual Extension, 2 Flat, 1.75” Long Shaft,
Handybox (top), 8-32 Mounting

Details

4012-B

120/240

CCW

TB2001, 2 Flat, 1.125” Long Shaft,
Conduit connector, 40" wiring leads , 8-32 Mounting

Details

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Downloads for Actuator Motors

Private: TB 2001 – Wiring Instructions

Download

​Spec 2430/2430A Identification Sheet

Download