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EATON Overload Relay: 3 Poles, 2NO/2NC, 4 A – 20 A Adj Range - Definite Purpose Electronic Overload Relays
EATONDefinite Purpose Electronic Overload Relays

EATON Overload Relay: 3 Poles, 2NO/2NC, 4 A – 20 A Adj Range

The EATON Definite Purpose Electronic Overload Relay (MPN C440A1A020SDD) is a 3-pole device with a 4 A – 20 A adjustable range, 2NO/2NC contact configuration, and selectable Trip Class 10/20/30. 3G Electric…

SKU 3G-OTH-40349

Brand
EATON
Item
Overload Relay: 3 Poles, 2NO/2NC, 4 A – 20 A Adj Range
Category
Definite Purpose Electronic Overload Relays
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Technical Specifications

EATON
Manufacturer Part Number
C440A1A020SDD
Type
2NO/2NC, 4 A – 20 A Adj Range
Trip Class
10/20/30
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EATON Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The EATON Definite Purpose Electronic Overload Relay (MPN C440A1A020SDD) is a 3-pole device with a 4 A – 20 A adjustable range, 2NO/2NC contact configuration, and selectable Trip Class 10/20/30. 3G Electric interprets your demand for this EATON component and delivers it with specialist support across 14 industrial departments — including deep expertise in controls — ensuring you get the right solution, not just a part.

Frequently Asked Questions

What is the EATON C440A1A020SDD overload relay used for?

The EATON C440A1A020SDD is a definite purpose electronic overload relay used to protect motors from overcurrent, phase loss, and phase imbalance in industrial applications such as pumps, fans, and conveyors. It features 3 poles, 2NO/2NC auxiliary contacts, and an adjustable current range of 4 A to 20 A.

What are the specifications of the EATON C440A1A020SDD overload relay?

The EATON C440A1A020SDD is a 3-pole electronic overload relay with 2NO/2NC auxiliary contacts, adjustable current range from 4 A to 20 A, and selectable trip classes 10, 20, or 30. It is designed for definite purpose motor protection and is manufactured by EATON under MPN C440A1A020SDD.

Where to buy the EATON C440A1A020SDD overload relay worldwide?

You can source the EATON C440A1A020SDD overload relay worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine EATON components for motor protection applications.

How to select the correct trip class for the EATON C440A1A020SDD overload relay?

Select the trip class (10, 20, or 30) based on motor starting characteristics and application. Class 10 is for fast-starting loads like pumps; Class 20 suits standard motors; Class 30 handles high-inertia loads like fans. The EATON C440A1A020SDD allows field adjustment. Always consult the motor nameplate and manufacturer guidelines for proper selection.

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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