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EATON Overload Relay: Electronic Protection, 3 Poles, NEMA Size 4/5/6/7/8/9 - NEMA Electronic Overload Relays
EATONNEMA Electronic Overload Relays

EATON Overload Relay: Electronic Protection, 3 Poles, NEMA Size 4/5/6/7/8/9

The EATON Overload Relay: Electronic Protection (MPN C440C1A140SAX) is a NEMA electronic overload relay with three poles, rated for NEMA sizes 4 through 9 and a current range of 24 A to 140 A. It features a maximum…

SKU 3G-OTH-40900

Brand
EATON
Item
Overload Relay: Electronic Protection, 3 Poles, NEMA Size 4/5/6/7/8/9
Category
NEMA Electronic Overload Relays
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Technical Specifications

EATON
Manufacturer Part Number
C440C1A140SAX
Type
NEMA Size 4/5/6/7/8/9, 24 A – 140 A
Phase
Three
Poles
3
Maximum Voltage Rating
690V AC
Thermal Units Required
Not Applicable to Electronic Type Overload Relays
Terminal Connection Type
Screw Clamp Terminals
Compatible Contactor Series
Freedom
View Full Spec Sheet

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EATON Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The EATON Overload Relay: Electronic Protection (MPN C440C1A140SAX) is a NEMA electronic overload relay with three poles, rated for NEMA sizes 4 through 9 and a current range of 24 A to 140 A. It features a maximum voltage rating of 690V AC, screw clamp terminals, and is compatible with the Freedom contactor series. This three-phase electronic relay does not require thermal units.

Frequently Asked Questions

What is the EATON C440C1A140SAX overload relay used for?

The EATON C440C1A140SAX is an electronic overload relay used to protect three-phase motors from overload, phase loss, and current imbalance. It is suitable for NEMA sizes 4 through 9 and is commonly applied in industrial motor control centers and heavy machinery.

What are the specifications of the EATON C440C1A140SAX overload relay?

This EATON overload relay has 3 poles, a current range of 24 A to 140 A, and a maximum voltage rating of 690V AC. It features screw clamp terminals, is compatible with the Freedom contactor series, and does not require thermal units as it uses electronic protection.

Where to buy the EATON C440C1A140SAX overload relay worldwide?

You can source the EATON C440C1A140SAX overload relay through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive genuine EATON components for your motor protection needs.

How to select the correct EATON overload relay for a motor?

To select the correct EATON overload relay, match the relay's current range (24 A to 140 A for this model) to the motor's full-load amperage. Ensure the relay is rated for the system voltage (up to 690V AC) and is compatible with your contactor series, such as the Freedom series used here.

Used in

Common applications for EATON
Industrial control panels — Eaton M22 flush push buttons for momentary machine start/stop commands
Motor control centers — Eaton NEMA reversing starters with electronic overloads for conveyor belt direction control
HVAC systems — Eaton definite purpose starters with thermal overloads for compressor and fan motor protection
Process automation — Eaton SL7 tower lights with IP66 bases for visual status indication in wet environments
Machine tool signaling — Eaton 10250T LED pilot lights with push-to-test for operator panel status lamps
Access control — Eaton M22 keyed selector switches for equipment mode selection in secured areas

EATON Products

3G Electric supplies EATON nema electronic overload relays. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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