Square D 8903S Type S 3-Pole E...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$704.24
Square D 8903S Type S 3-Pole Electrically Held Lighting Contactor

Square D 8903S Type S 3-Pole Electrically Held Lighting Contactor

(No reviews yet) Write a Review

Model: 8903SMG2V02

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

$704.24
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Square D 8903S Type S 3-Pole Electrically Held Lighting Contactor

The Square D 8903S Type S lighting contactor is an electrically held, 3-pole device built for lighting control applications in industrial and commercial facilities. This open-style contactor is available with motor full-load amperage (FLA) ratings from 30A to 100A and operates on a 110/120VAC coil at 50/60Hz, making it well suited for common control circuits that require reliable disconnect of lighting loads for periodic maintenance. Backed by UL Listed and CSA certification, this Square D contactor delivers dependable performance for professional electrical installations, with a rating selectable to match the specific load of the installation.

Key Features

  • Electrically Held Operation: The 8903S Type S contactor is the electrically held version, ideal for lighting control applications.
  • Pole Configuration: 3-pole design supports multipole lighting circuits.
  • Switching Capacity Range: Available with motor FLA ratings from 30A up to 100A to match the load requirements of the installation.
  • Coil Voltage: 110/120VAC coil operates at 50/60Hz (120V AC 60Hz / 110V AC 50Hz control circuit voltage).
  • Open Style Construction: Open device style, not rated for NEMA enclosure protection.
  • Serviceable Design: Serviceable by replacing contacts and coils rather than replacing the entire product.
  • Robust Build: Robust design and reliable build for long mechanical life and electrical endurance.
  • TAA Compliant: Meets Trade Agreements Act compliance requirements.

Certifications & Compliance

  • UL Listed
  • CSA
  • TAA Compliant
  • RoHS EU In Scope
  • Mercury Free

Technical Specifications

  • Poles Description: 3P
  • Motor FLA Range: 30A - 100A
  • Warranty: 18 months
  • Warranty Period: 18 months
  • Device Type: LV equipment - LV contactor
  • Electrical Connection: lugs
  • Control Type: no control units
  • Control Circuit: common control circuit
  • Serviceability: No
  • Mercury Free: Yes
  • ROHS Eur In Scope: Yes
  • Compliance: TAA
  • Country of Origin: Mexico
  • Standards: CSA

Typical Applications

  • Lighting Circuit Control and Disconnect
  • Industrial and Commercial Lighting Systems
  • Panel Builder and OEM Control Panel Assemblies
  • Periodic Maintenance Disconnect for Lighting Circuits
  • Common Control Circuit Applications

Why Square D?

Square D by Schneider Electric engineers the 8903S Type S contactor line for robust, code-compliant performance in demanding lighting control applications across its full 30A to 100A FLA range. With serviceable contacts and coils, UL Listed and CSA certification, and a mercury-free, TAA-compliant design, this electrically held contactor is built for long mechanical life and reliable electrical endurance in professional installations.

Manufacturer Resources

Product Specs

Product Type:
Lighting Contactor
Series:
8903S
Voltage Rating:
110/120VAC
Configuration:
3-Pole
Listing:
UL Listed
Standards:
CSA
Department:
Electrical
Product Group:
Motor Control & Automation
Amperage Rating:
30A - 100A
Product Subgroup:
Contactors & Relays

Square D 8903SMG2V02 – Frequently Asked Questions

1) Is the Square D 8903S electrically held or mechanically latched?
The 8903S Type S is the electrically held version, so the coil stays energized the whole time the contacts are closed. That's fine where you have a continuous 120V control circuit from a time clock, photocell, or BMS relay output. If you need the contacts to hold with the coil de-energized (pulse control from a two-wire momentary circuit, or no coil hum in an occupied space), you want a magnetically latched device instead, such as the Eaton A202 magnetically latched 3-pole 30A lighting contactor.
2) What coil voltage does the 8903S lighting contactor use?
Coil is 110/120VAC at 50/60Hz, which means 120V 60Hz in North America and 110V 50Hz elsewhere. If your control power is 24V, 208V, 240V, or 277V, this one won't pick up, you need a different coil or a control transformer feeding 120V.
3) Which amp rating of the Square D 8903S do I order for my lighting circuit?
The 8903S Type S covers a 30A to 100A motor FLA range, ordered by rating. Two are offered: 30A (8903SMG2V02) and 100A (8903SQO2V02). Size it to the actual connected load of the lighting branch, not to the breaker, and account for inrush on HID or large ballast banks.
4) Does the 8903S contactor come in an enclosure?
No. It's an open-style device with no NEMA enclosure rating, so it has to go inside a panel, gear section, or a separately purchased enclosure. If you're mounting it in a mechanical room, parking structure, or anywhere exposed, plan on an enclosure as a separate line item.
5) Is the Square D 8903S UL Listed and CSA certified for a government job?
Yes, UL Listed and CSA, and it's TAA compliant with country of origin Mexico, which is what a federal or state procurement spec usually asks for. It's also RoHS EU in scope and mercury free.
6) What is the difference between the Square D 8903S lighting contactor and the Eaton A202 magnetically latched contactor?
The Square D 8903S Type S is an electrically held 3-pole lighting contactor, meaning the coil stays energized to keep the contacts closed, and it runs on a 110/120VAC coil. The Eaton A202 is a magnetically latched 3-pole lighting contactor rated 30A, so it holds its position mechanically after a momentary control pulse. Both are 3-pole, and the 8903S covers a motor FLA range of 30A to 100A. Choose electrically held when you want the circuit to drop out on loss of control power, and magnetically latched when you want the lighting state to hold through a control-power interruption and your control scheme uses momentary pulses.
7) Can I replace a Square D 8903S with an Eaton A202 on a 30A lighting circuit?
Amperage-wise they line up at the low end: the Square D 8903S Type S is offered in a 30A motor FLA version under part number 8903SMG2V02, and the Eaton A202 is a 3-pole 30A lighting contactor. The operating principle differs, though - the 8903S is electrically held with a 110/120VAC coil, while the A202 is magnetically latched. Swapping one for the other means rewiring the control circuit from maintained to momentary, so it is a substitution to make at the panel design stage rather than a drop-in field replacement.
8) How do the wires terminate on the Square D 8903S?
Line and load terminate on lugs. For the 100A rating in particular, check that your conductor size falls within the lug range and that you have the bending room in the enclosure you're mounting it in.
9) Can I rebuild a Square D 8903S contactor instead of replacing the whole unit?
The Type S design is serviceable by replacing contacts and coils rather than swapping the entire device, which is the usual approach on a facility where the same contactor runs lighting daily for years. Order the replacement contact kit and coil matched to the specific rating you have, 30A and 100A parts are not interchangeable.
10) Will a 3-pole lighting contactor handle my 277/480V three-phase lighting panel?
The 8903S is a 3-pole configuration, so it breaks three ungrounded conductors, one pole per phase of a 277/480V three-phase lighting feed, or three separate single-phase branches switched together. Just remember the 110/120VAC coil is separate from the switched load, so you still need a 120V control source. If you only need two poles switched, the ABB CR460 series is offered as a 2-pole lighting contactor power block.
11) Does the Square D 8903S include a hand-off-auto selector or pushbutton?
No control units are included, it ships as a bare contactor on a common control circuit. Any hand-off-auto switch, pilot light, time clock, or photocell has to be supplied and wired separately in your control scheme.
12) I need a 3-pole lighting contactor but only have a 2-pole circuit to switch - is there a smaller option than the Square D 8903S?
The Square D 8903S Type S is a 3-pole device across its 30A to 100A range, so on a two-circuit lighting panel one pole would sit unused. The ABB CR460 series lighting contactor power block is a 2-pole configuration and matches that smaller switching requirement more closely. Confirm the CR460 power block's coil and amperage suit your control circuit, since the 8903S coil is 110/120VAC at 50/60Hz.
13) Is the ABB CR460 power block a direct substitute for a Square D 8903S contactor?
No. The ABB CR460 item is a 2-pole lighting contactor power block, whereas the Square D 8903S Type S is a complete 3-pole electrically held contactor with a 110/120VAC coil, lug connections, and a 30A to 100A FLA selection. A power block covers the switching poles for a CR460 assembly, so it is not an equivalent for a three-circuit opening where the 8903S is specified. If the drawing calls for a UL Listed, CSA certified 3-pole lighting contactor, stay with the 8903S.
14) For a 100A lighting load, is there an alternative to the Square D 8903S?
At 100A the Square D 8903S Type S is the fit among these: it is offered as a 3-pole 100A motor FLA version, part number 8903SQO2V02, with a 110/120VAC coil and lug terminations. The Eaton A202 comparable is a 30A 3-pole unit and the ABB CR460 item is a 2-pole power block, so neither matches a 3-pole 100A lighting circuit.
How fast can I get the Square D 8903SMG2V02 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 8903SMG2V02 come with a warranty?
Absolutely. The Square D 8903SMG2V02 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 8903SMG2V02?
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
Why buy the Square D 8903SMG2V02 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!