MA-418-0-0-4 Schneider Electric Damper Actuator

UPC: 711426310214

MA-418-0-0-4 User Guide

The Schneider Electric MA-418-0-0-4 Two Position Damper Actuator, 120V, Spring Return, 60 Lb-In Torque, Output Shaft must be Horizontal for Mounting, 70 Watts Running Input, 25 Watts Holding

Two-Position Spring-Return Electric Actuator • 120V • 60 in-lb Torque • OEM Replacement

Replacement MA-418 Actuator (MA-418-0-0-2, MA-418-0-0-3, and MA-418-0-0-4)

MA-418-0-0-4

MA-418-0-0-3

Overview

The Schneider Electric MA-418-0-0-4 Damper Actuator is designed for HVAC systems and industrial dampers requiring reliable two-position (on/off) control with automatic spring-return to default on power loss. With rugged die-cast aluminum housing, conduit connections, and a high-torque motor, it’s built for durability and safety in demanding environments.

With 60 lb-in torque and rugged die-cast aluminum housing, the MA-418 delivers long-lasting performance for industrial and commercial environments

Key Features

• • Spring Return Fail-Safe – Returns damper to normal position during power outage.

  • High Torque Output – 60 lb-in (6.8 Nm) for medium to heavy dampers.

  • Simple Two-Position Control – Compatible with SPST or SPDT switching.

  • Rugged Construction – Die-cast aluminum housing with durable gear train.

  • Wide Operating Range – Reliable from -40°F to +136°F (-40°C to +57.7°C).

  • Fast & Easy Wiring – Terminal block connections with dual conduit openings.

  • OEM Replacement – Direct replacement for Barber-Colman MA-418 models.

Applications & Benefits

Ideal wherever dampers or valves must move to a safe position when power is lost — such as in air handling units, exhaust systems, fire/smoke control dampers, or ventilation systems. Benefits include:

• Increased safety and code compliance

• Reduced risk during power failures

• Simple maintenance and replacement

• Long service life even under harsh environmental conditions

• The MA-418 actuator is ideal for:

  • HVAC air handling units

  • Ventilation dampers

  • Exhaust and louver control

  • Fire/smoke dampers

  • Industrial dampers requiring fail-safe action

Features

• Compatible with most SPST control devices
• Spring return
• 24, 120, 208, and 240 Vac models
• Actuators with part number suffix “-500” are equipped with SPDT auxiliary switch
• Actuator has a rugged die cast aluminum housing with two 1/2” conduit openings
• Hazardous location actuator housing has two 3/4″ pipe taped openings for rigid metal conduit connection
• Oil immersed motor and gear train

Specifications

Accessories & Related Products

Compatible accessories include: AM-116, AV-29, AV-300, AV-391.
Check also alternate voltage models or actuators with auxiliary switches for added control options.

Frequently Asked Questions

• What happens during a power failure?
    The actuator uses a spring-return mechanism to move the damper back to its normal (safe) position.

• Can it be mounted in any orientation?
    For best performance, the output shaft must be mounted horizontally.

Why Choose Apex Controls

• Genuine OEM Schneider Electric parts

• Fast shipping and live stock availability

• Expert support to help you select the right actuator