Square D 8903L Type L Multipol...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$156.69
Square D 8903L Type L Multipole Lighting Contactor Replacement Coil, 277VAC

Square D 8903L Type L Multipole Lighting Contactor Replacement Coil, 277VAC

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Model: 9998L55

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

$156.69
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Square D 8903L Type L Multipole Lighting Contactor Replacement Coil, 277VAC

The Square D 8903L Type L replacement coil is a field-replaceable coil designed for the Class 8903 multipole lighting contactor platform, available for 2 to 6 pole configurations. Rated for 277VAC 60Hz (Ue) operation, this coil supports lighting circuits switching up to 30A fluorescent and 20A tungsten loads. It lets panel builders and electricians restore contactor function without replacing the entire 8903L contactor, making it a practical maintenance part for commercial and industrial lighting control panels.

Key Features

  • Multipole Compatibility: Fits Class 8903 Type L contactors configured for 2 to 6 poles.
  • Field-Replaceable Design: The coil installs directly into the 8903L contactor, allowing the lighting control function to be restored without swapping the full unit.
  • Rated Operational Voltage: 277VAC 60Hz (Ue), matched to standard lighting circuit voltages.
  • Switching Capacity: Supports contactor loads up to 30A fluorescent and 20A tungsten lighting.
  • Coil Power Data: Average consumption of 30VA with an inrush rating of 150VA.
  • Type L Construction: Built as an accessory/replacement part for the Class 8903 contactor platform.
  • Country of Origin: Manufactured in Mexico.

Certifications & Compliance

  • EU RoHS: In scope, full compliance status under investigation.
  • China RoHS: Out of scope for this product.
  • WEEE Product Category 5, Legacy WEEE Scope: In.

Technical Specifications

  • Warranty: 18 months.
  • Rated Voltage (Ue): 277VAC, 60Hz.
  • Pole Configuration: 2 to 6 poles.
  • Coil Consumption: 30VA average, 150VA inrush.

Typical Applications

  • Lighting Control Panels and Circuits
  • Commercial and Industrial Lighting Installations
  • Fluorescent and Tungsten Lighting Loads
  • Class 8903 Contactor Coil Replacement and Maintenance
  • Panel Building and OEM Lighting Control Equipment

Why Square D?

Square D 8903L replacement coils are backed by an 18-month warranty, giving panel builders, electricians, and OEMs a dependable, field-serviceable option for lighting control maintenance. The replaceable coil design supports long-term serviceability of Class 8903 contactors, helping keep lighting circuits reliable and code-compliant without full contactor replacement.

Manufacturer Resources

Product Specs

Product Type:
Contactor Coil
Voltage Rating:
277VAC
Series:
8903
Configuration:
2-6 Pole
Department:
Electrical
Product Group:
Motor Control & Automation
Product Subgroup:
Contactors & Relays
Product Width:
2.11 in
Product Depth:
1.46 in
Product Height:
2.38 in

Square D 9998L55 – Frequently Asked Questions

1) Can I use a 277V lighting contactor coil on a 120V control circuit?
No. This coil's rated operational voltage is 277VAC at 60Hz, so it has to be fed from a 277V control source, typically tapped off one leg of a 480/277V lighting panel. Energizing it from 120V will not reliably pull in the armature. If your control circuit is 120V, you need the 120V coil for that contactor instead.
2) Is there an equivalent replacement coil for an ABB lighting contactor instead of a Square D Class 8903 Type L?
No. The Square D 9998L55 and 9998LH55 coils are built for the Class 8903 Type L multipole lighting contactor and are rated 277VAC. If the contactor in the panel is an ABB lighting contactor, the coil to use is the ABB CR460XC series lighting contactor replacement coil, which is made for that platform. Coils are not interchangeable between manufacturers' contactor frames even when both switch lighting loads at the same voltage.
3) My contactor is a NEMA size motor starter, not a lighting contactor - will the Square D 8903L coil fit?
No. The 8903L Type L coil is sized to the Class 8903 multipole lighting contactor in 2 to 6 pole configurations, which is a lighting control frame rather than a NEMA-rated motor starter. For a NEMA size 00, 0 or 1 magnet frame, the coil designed for that application is the ABB 15D2 series replacement magnet coil. For larger NEMA frames, Eaton's Type GCA 530 size 5 replacement coil covers that size class.
4) I need a replacement coil but my lighting panel runs on 120V control, not 277V. What should I look at?
The Square D 8903L Type L coils are rated 277VAC, matched to 277V lighting circuit control. For a 120/110V control circuit, the Eaton Freedom series replacement coil is offered at 120/110V, 60/50 Hz, and the Eaton Type GCA 530 size 5 coil is offered at 200V/208V 60Hz. Confirm the contactor frame as well as the voltage - each of those coils fits only its own contactor family.
5) What is the difference between the 9998L55 and the 9998LH55 coil?
Both are 277VAC Type L coils for Class 8903 multipole lighting contactors, and they are the two coil part numbers offered. Order by the exact number stamped on the coil you are pulling out of the contactor, 9998L55 or 9998LH55, so the replacement matches the original build.
6) How much control power does the Square D 8903L coil draw, and will my control transformer handle it?
Average sealed consumption is 30VA with a 150VA inrush. Size the 277V control source or transformer for the inrush, not the sealed figure, and add up the inrush of every coil that can pick up at once if you are switching several contactors off one transformer or a lighting control relay panel.
7) What lighting loads can an 8903L contactor with this coil switch?
The Class 8903 Type L contactor platform this coil serves handles up to 30A fluorescent and 20A tungsten per pole rating. Fluorescent and HID ballast loads get the higher figure; tungsten (incandescent) is derated because of filament inrush. The coil itself only picks the contactor in, so the load rating comes from the contactor and its pole count.
8) Is it worth replacing just the coil instead of the whole lighting contactor?
When the contacts are still in serviceable shape and the failure is a burned or open coil, the coil swap is the cheaper repair path and it is the reason Square D builds the 8903L with a field-replaceable coil. If the power contacts are pitted, welded, or badly eroded, replace the contactor or the contact kit as well, because a new coil will not fix chattering or heat caused by worn contacts.
9) Can I standardize on this coil across all the lighting contactors in my building?
Across 8903 Type L contactors, yes, as long as every one of them is a 277V coil unit. The coil covers 2 through 6 pole Type L contactors, so a mixed panel of 2 pole and 6 pole units uses the same coil. Contactors on 120V or 208/240V control, or non-8903 units, take different coils, so do a quick coil-voltage inventory before you stock spares.
10) We standardize on Eaton starters. Is there a renewal coil equivalent to the Square D 8903L for those?
For Eaton AC contactors and starters in the A200/A201 series, the matching part is the Eaton A200/A201 AC renewal coil rated 50-60 Hz. The Square D 9998L55 and 9998LH55 coils are specific to the Class 8903 Type L lighting contactor platform and are not a renewal coil for Eaton frames, so a mixed-brand panel needs the coil that matches each contactor's own series.
11) What is the difference between a lighting contactor coil like the Square D 8903L and a control relay coil?
The Square D 8903L Type L coil energizes a Class 8903 multipole lighting contactor carrying the lighting load itself, in 2 to 6 pole configurations at 277VAC. A relay coil such as the Eaton D26 relay replacement coil, rated 240V 60Hz, serves a control relay that switches control-circuit contacts rather than the lighting branch. Match the coil to the device it sits in: a relay coil will not restore a lighting contactor, and vice versa.
12) How big is the Square D 8903L replacement coil?
The coil measures 2.38 x 2.11 x 1.46 inches (height, width, depth). That matters when you are working inside a crowded lighting control panel or a surface enclosure, since the coil has to come straight out of the magnet frame with the enclosure cover off.
How fast can I get the Square D 9998L55 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 Square D 9998L55 come with a warranty?
Absolutely. The Square D 9998L55 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 Square D 9998L55?
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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