Eaton A200/B100 NEMA Overload ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$97.36
Eaton A200/B100 NEMA Overload Relay Heater Element, Thermal and Fast Trip

Eaton A200/B100 NEMA Overload Relay Heater Element, Thermal and Fast Trip

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Model: FH52

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

$97.36
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Eaton A200/B100 NEMA Overload Relay Heater Element, Thermal and Fast Trip

The Eaton A200/B100 Heater is a NEMA-design overload relay heater element engineered for use with Starter Sizes 1 and 2. Built for Type A and B overload relays with a thermal and fast trip design, this heater element provides ambient-compensated overload protection with ambient ratings of 26.3-28.7A and non-compensated ratings of 24.4-26.6A and 28.9-31.4A. It is a precise, code-compliant replacement component for maintaining reliable motor overload protection in NEMA motor control assemblies.

Key Features

  • Type: A200/B100 Heater for NEMA overload relay applications.
  • Design: NEMA design for standard motor control center and starter compatibility.
  • Starter Compatibility: Used with Starter Sizes 1 and 2 for accurate motor overload sizing.
  • Overload Relay: Compatible with Type A and B overload relays.
  • Trip Type: Thermal and fast trip design for responsive overload protection.
  • Ambient Ratings: Ambient 26.3-28.7A; Non-Compensated 24.4-26.6A and 28.9-31.4A for precise load matching.
  • Compact Dimensions: Product Width 1.3 in and Product Height .8 in for standard heater element mounting.

Technical Specifications

  • Design: NEMA
  • Overload relay: Type A and B
  • Type: A200/B100 Heater
  • Trip type: Thermal and fast trip
  • Product Width: 1.3 in
  • Product Height: .8 in
  • Product Type: Motor Starter
  • Department: Electrical
  • Warranty: Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.

Typical Applications

  • Motor Control Centers and Starter Assemblies
  • Starter Size 1 and 2 Overload Protection
  • Industrial Motor Starter Maintenance and Replacement
  • Commercial and Industrial Electrical Installations
  • Panelboard and Motor Control Panel Servicing

Why Eaton?

Eaton's A200/B100 heater element is engineered to NEMA design standards with precise thermal and fast trip response, giving electrical professionals a dependable, correctly sized overload protection component for Starter Sizes 1 and 2. Backed by Eaton's standard selling policy warranty, this heater element supports reliable, code-compliant performance in motor control applications.

Variant Specifications

Motor FLASKU
.59-.64AFH10
.72-.79AFH12
.80-.87AFH13
1.29-1.41AFH18
1.42-1.55AFH19
1.56-1.71AFH20
1.72-1.87AFH21
2.07-2.26AFH23
4.72-5.14AFH32
5.15-5.6AFH33
6.9-7.5AFH36
9.1-9.9AFH39
10.0-10.8AFH40
10.9-11.9AFH41
13.2-14.3AFH43
27.7-30.3AFH51
30.4-33.3AFH52
33.4-36.4AFH53
36.5-39.9AFH54
41.6-45AFH57

Manufacturer Resources

Product Specs

Product Width:
1.3 in
Product Design:
NEMA
Product Height:
.8 in
Overload relay:
Type A and B
Product Type:
Overload Heater
Trip type:
Thermal and fast trip
Department:
Electrical
Series:
A200/B100
Standards:
NEMA
Configuration:
Thermal and Fast Trip
Product Group:
Starters & Contactors

Eaton FH52 – Frequently Asked Questions

1) Will an FH heater fit my Eaton Type A or Type B overload relay?
Yes. The A200/B100 FH heater element is made for Eaton Type A and Type B overload relays, NEMA design, and is sized for Starter Sizes 1 and 2. If your starter is a NEMA Size 1 or 2 with an A or B series overload block, the FH element is the correct heater family for it.
2) How many heater elements do I need to order for one three phase starter?
Three, one per phase, all the same FH number. A three phase NEMA overload relay carries a heater in each pole and they must match; mixing ratings across phases gives inconsistent trip behavior. These are sold as individual elements, so a single three phase Size 1 or 2 starter takes a quantity of three.
3) Will the FH heater physically fit in the heater pocket of my starter?
The FH element measures 1.3 in wide by .8 in high, which is the standard A200/B100 heater footprint across every FLA rating in the series. Because the body size does not change from FH10 through FH57, swapping to a different amp band in the same starter needs no other change to the overload block.
4) What is the largest motor these Eaton A200/B100 heaters can protect?
The top element in the FH line is FH57, covering 41.6-45A. Above that you are past what this heater family and a NEMA Size 1 or 2 starter are intended to handle, and you need a larger starter size with its matching heater series. The next steps down are FH54 at 36.5-39.9A and FH53 at 33.4-36.4A.
5) Do I have to derate the heater for a service factor 1.0 motor?
Selection starts from motor nameplate FLA, and the FH bands are deliberately narrow so you land close to it. For a 1.0 service factor motor, electricians commonly step down one band to trip earlier, since a 1.0 SF motor has no continuous overload margin. The bands are close enough to do that cleanly, for example dropping from FH33 (5.15-5.6A) to FH32 (4.72-5.14A).
6) I need to stock heaters for a motor control center with mixed small motors. Which FH sizes cover the fractional horsepower end?
The low end of the FH line steps in tight increments for small motors: FH10 (.59-.64A), FH12 (.72-.79A), FH13 (.80-.87A), FH18 (1.29-1.41A), FH19 (1.42-1.55A), FH20 (1.56-1.71A), FH21 (1.72-1.87A) and FH23 (2.07-2.26A). For an MCC with a spread of small fan and pump motors, that group covers most fractional and 1 HP class loads on Size 1 starters.
7) What does thermal and fast trip mean on these Eaton heater elements?
It describes how the heater responds to overcurrent. The FH element uses a thermal and fast trip design, so it tracks the sustained heating of the motor while still reacting quickly to a hard overload such as a stalled or locked rotor. That is the trip characteristic for all FH heaters in the A200/B100 line, regardless of which FLA band you order.
8) Are the Eaton FH heaters ambient compensated?
The A200/B100 heater element gives ambient-compensated overload protection, with published ambient ratings of 26.3-28.7A and non-compensated ratings of 24.4-26.6A and 28.9-31.4A. Compensation matters when the starter enclosure sits in a hot mechanical room or outdoors, where an uncompensated element can nuisance trip on ambient heat rather than real motor load.
How fast can I get the Eaton FH52 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 FH52 come with a warranty?
Absolutely. The Eaton FH52 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 FH52?
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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