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EATON Overload Relay: 3 Poles, 2NO/2NC, 9 A – 45 A Adj Range - Definite Purpose Electronic Overload Relays
EATONDefinite Purpose Electronic Overload Relays

EATON Overload Relay: 3 Poles, 2NO/2NC, 9 A – 45 A Adj Range

The EATON Overload Relay is a 3-pole Definite Purpose Electronic Overload Relay with a 2NO/2NC contact configuration and an adjustable current range of 9 A to 45 A. It offers selectable Trip Class settings of 10, 20…

SKU 3G-OTH-40362

Brand
EATON
Item
Overload Relay: 3 Poles, 2NO/2NC, 9 A – 45 A Adj Range
Category
Definite Purpose Electronic Overload Relays
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Technical Specifications

EATON
Manufacturer Part Number
C440A1A045SDD
Type
2NO/2NC, 9 A – 45 A Adj Range
Trip Class
10/20/30
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EATON Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The EATON Overload Relay is a 3-pole Definite Purpose Electronic Overload Relay with a 2NO/2NC contact configuration and an adjustable current range of 9 A to 45 A. It offers selectable Trip Class settings of 10, 20, or 30, providing flexibility for motor protection applications. This EATON C440 series relay (MPN C440A1A045SDD) is designed for reliable overload protection in industrial equipment.

Frequently Asked Questions

What is the EATON C440 overload relay used for?

The EATON C440A1A045SDD is a definite-purpose electronic overload relay used to protect three-phase motors from overload, phase loss, and phase unbalance in industrial applications such as pumps, fans, and conveyors.

What are the specifications of the EATON C440 overload relay?

The EATON C440A1A045SDD has 3 poles, 2NO/2NC auxiliary contacts, an adjustable current range of 9 A to 45 A, and selectable trip classes 10, 20, and 30. It is an electronic definite-purpose overload relay from EATON.

Where to buy the EATON C440 overload relay worldwide?

You can source the EATON C440A1A045SDD overload relay worldwide through 3G Electric. We handle full logistics, customs clearance, and delivery to your site as a global industrial equipment supplier.

How to select the trip class for the EATON C440 overload relay?

Select trip class 10 for fast-acting protection on motors with short starting times, class 20 for standard general-purpose motors, and class 30 for high-inertia loads like fans or flywheels. The EATON C440 allows field selection among these three classes.

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 definite purpose 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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