Eaton C44 NEMA Electronic Over...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$263.19
Eaton C44 NEMA Electronic Overload Relay, Freedom Size, 45mm Frame

Eaton C44 NEMA Electronic Overload Relay, Freedom Size, 45mm Frame

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Model: C440A1A020SF0

In Stock (leaves warehouse same day if ordered before 3pm ET)

$263.19
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Eaton C44 NEMA Electronic Overload Relay, Freedom Size, 45mm Frame

The Eaton C44 NEMA Electronic Overload Relay is an electronic overload relay built on Eaton's Freedom Size platform with a compact 45mm frame for NEMA motor control applications. It features a selectable trip type — class 10, 20, or 30 — and is available across an overload range of 9-45A depending on the configuration selected, giving specifiers flexible motor protection options. The relay is CE Marked, supporting use in electrical installations that require compliant motor overload protection.

Key Features

  • Freedom Size Frame: Compact 45mm frame designed for space-conscious NEMA motor control center layouts.
  • Electronic Overload Technology: Electronic overload relay design for accurate, repeatable motor protection versus bimetallic designs.
  • Selectable Trip Type: Selectable trip class 10, 20, or 30 to match motor starting characteristics and application requirements.
  • Overload Range: Configurations available across a 9-45A overload range for coordinated motor branch-circuit protection.
  • Special Features: Standard feature set suited to general-purpose NEMA motor control installations.
  • Compliance: CE Marked construction for use in CE-compliant electrical systems.

Certifications & Compliance

  • CE Marked

Technical Specifications

  • Type: Electronic overload relay
  • Trip Type: Selectable trip class 10, 20, 30
  • Overload Range: 9-45A
  • Frame: 45mm, Freedom Size
  • Compliances: CE Marked
  • Special Features: Standard

Typical Applications

  • NEMA Motor Starters and Motor Control Centers
  • Industrial Machinery Motor Protection
  • Commercial and Industrial Electrical Installations
  • Panelboard and Motor Control Wiring
  • Renovation and New Motor Control Construction

Why Eaton?

Eaton's C44 Electronic Overload Relay combines a space-saving Freedom Size 45mm frame with selectable class 10, 20, and 30 trip settings, giving electrical professionals flexibility to match protection to the motor and application. Backed by CE Marked compliance and Eaton's standard manufacturer warranty, it delivers dependable, code-conscious motor overload protection for NEMA-based control systems.

Manufacturer Resources

Product Specs

Product Type:
Overload Relay
Trip Type:
Selectable 10 A, class 10 ,20, 30
Compliances:
CE Marked
Special Features:
Standard
Department:
Electrical
Configuration:
45mm Frame
Standards:
CE Marked
Amperage Rating:
9A - 45A
Product Group:
Motor Control & Automation
Product Subgroup:
Overload Relays
Product Weight:
0.87 lb

Eaton C440A1A020SF0 – Frequently Asked Questions

1) What amp range does the Eaton C440 electronic overload relay cover?
The C440 electronic overload relay covers a 9A to 45A adjustment range across its configurations. Pick the configuration whose range brackets your motor's full load amps, so the FLA sits inside the dial range rather than at the very top or bottom of it.
2) Is the Eaton C440 relay a 45mm frame or a 55mm frame?
Both are offered. The 45mm Freedom Size frame comes in NEMA Size 0 (C440A1A020SF0) and NEMA Size 1 (C440A1A045SF1). There is also a 55mm frame in NEMA Size 3, C440B1A100SF3. The frame has to match the contactor it mounts to, so order by the starter size you are building.
3) Can I set the trip class on the Eaton C440 overload relay?
Yes. Trip class is selectable between 10, 20 and 30 on the relay itself, so one part covers a normal-starting load and a high-inertia load. Class 10 for quick trips on standard motors, class 20 or 30 where the motor takes longer to come up to speed, like a loaded fan or a large pump.
4) Is an electronic overload relay better than a bimetallic one for motor protection?
The C440 is electronic rather than bimetallic, which gives accurate, repeatable tripping that does not drift with ambient panel temperature the way a bimetallic element can. It also lets you change trip class in the field instead of swapping heater elements. Bimetallic units stay common where a fixed, simple heater-based setup is acceptable; the electronic unit is the choice when you want one part to cover a range of motors and want the trip point to hold.
5) Does the Eaton C440 overload relay need separate heater elements?
No. The C440 is an electronic relay with an adjustable current range of 9A to 45A and a selectable trip class, so protection is set on the device instead of by ordering and installing heater packs sized to the motor.
6) Is the Eaton C440 relay CE marked for an export machine build?
CE Marked, yes. That is the compliance stated for the C440 electronic overload relay, which is what a panel builder needs when the control assembly is going into a CE-compliant installation.
7) Will the Eaton C440 work in a motor control center bucket?
That is what it is built for. The C440 is a NEMA-style electronic overload relay on Eaton's Freedom Size platform, and the 45mm frame is sized for tight MCC and motor starter layouts. Typical use is NEMA motor starters, MCC buckets, and general industrial machinery motor protection.
8) Does the Eaton C440 come with communications or extra options, or is it the standard unit?
These are the standard feature build, not a communicating or specialty version. You get the electronic overload function with selectable trip class and the 9A to 45A range, suited to general-purpose NEMA motor control work.
How fast can I get the Eaton C440A1A020SF0 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Eaton C440A1A020SF0 come with a warranty?
Absolutely. The Eaton C440A1A020SF0 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Eaton C440A1A020SF0?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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