Eaton AHMC240C-3 Manual Motor Controller - NEMA 3R
Part Number: AHMC240C-3
Quick Summary
The Eaton manual motor controller AHMC240C-3 enables quick, safe panel control of two-pole, single-phase motors in industrial environments. Many facilities struggle with downtime caused by worn starters, miswiring, or non-NEMA rated enclosures. This unit carries cULus Listed and RoHS compliance, with a NEMA 3R enclosure and copperless aluminum body to withstand challenging conditions. By integrating side-wired terminals and a maintained contact design, it reduces wiring errors and maintenance cycles while improving operator safety. With 40A at 600V capacity and panel-mount capability, it supports reliable throughput in automation lines and machinery control, delivering value through durability, easy serviceability, and regulatory compliance.
Product Information
Extended Description
AHMC240C-3 Eaton: Eaton manual motor controller, #14-8 AWG, 40A, Panel, 600V, Side wired screw and clamp, Maintained contact, Gray, NEMA 3R,: Copperless aluminum, Two-pole, Single-phase, Toggle, Copper-alloy terminal, Single-throw, Glass-filled nylon
Product Name
Eaton manual motor controller
Catalog Number
AHMC240C-3
UPC
040893662664
Product Length/Depth
6.22 in
Product Height
5.47 in
Product Width
5.44 in
Product Weight
3.05 lb
Compliances
NAFTA RoHS Compliant
Certifications
cULus Listed
Enclosure
NEMA 3R
Type
Manual motor controller
Amperage Rating
40A
Voltage rating
600 V
Number Of Poles
Two-pole
Phase
Single-phase
Enclosure material
Copperless aluminum
Application
Industrial
Device grade
Industrial
Wiring method
Side wired screw and clamp
Contact type
Maintained
NEMA Rating
3R
Switch type
Toggle switch
Mounting method
Panel
Closure type
Maintained
Number of positions
2
Allowable wire size
#14-8 AWG
Material
Glass-filled nylon
Termination style
Side wired screw and clamp
Throw
Single-throw
Terminals
Copper-alloy, brass screw
Color
Gray
Feature: NEMA 3R copperless aluminum enclosure provides weather resistance and rugged durability. Business Impact: Reduces weather-related downtime and corrosion risk, lowering maintenance costs and extending service life. Application: Ideal for outdoor and harsh indoor industrial panels where environmental exposure is a concern. Feature: 40A, 600V, two-pole, single-phase electrical rating. Business Impact: Supports standard industrial motor loads with high-current capability while maintaining safe operation. Application: Suitable for control of common two-pole machines and conveyors in automation lines. Feature: Side wired screw and clamp termination. Business Impact: Simplifies field wiring, speeds installation, and minimizes wiring errors for faster commissioning. Application: Preferred in retrofit projects and new panel builds where wiring efficiency matters. Feature: Maintained contact with a two-position toggle switch. Business Impact: Ensures the motor state remains until actively changed, improving operator control and fault response. Application: Essential for switchgear assemblies requiring clear on/off states in continuous operation environments. Feature: Glass-filled nylon enclosure with copper-alloy terminals. Business Impact: Delivers heat resistance, mechanical strength, and durable termination interfaces, reducing replacement cycles. Application: Suitable for long-life operation in industrial settings with frequent cycling and vibration. Feature: Compliance and certifications (cULus Listed, RoHS). Business Impact: Streamlines procurement and regulatory adherence, reducing sourcing risk. Application: Supports quality assurance programs and compliance in regulated markets.
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FAQs
To install the AHMC240C-3, mount the unit in a suitable panel, connect conductors up to #14-8 AWG to the side-wired screw and clamp terminals, ensure the enclosure remains closed to preserve the NEMA 3R rating, and verify the two-pole, single-phase configuration aligns with your motor. Secure all connections and perform a functional check after energizing.
The controller is rated for 40A at 600V, two-pole, single-phase operation, with a maintained contact configuration and a toggle switch. It uses copper-alloy terminals and a side-wired termination method, designed for industrial motors in 2-position manual operation.
Yes. The AHMC240C-3 utilizes a NEMA 3R enclosure and copperless aluminum construction, providing robust protection against rain, dust, and corrosion, making it well-suited for outdoor panels and rugged indoor environments.
The unit is cULus Listed and RoHS compliant, with additional NAFTA alignment for North American procurement. These certifications support regulatory compliance, sustainability goals, and safer, easier supply chain integration.
Maintained contacts and durable copper-alloy terminals reduce switching wear and arcing, lowering downtime and replacement costs. The rugged enclosure and straightforward wiring simplify servicing, speeding repairs and improving equipment uptime, which translates to higher throughput and better total cost of ownership.