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White single-pin Fa8 lampholder with composite finish and screw terminals

Hubbell Incorporated

Hubbell Incorporated RL311 Single Pin Fa8 Lampholder 660 W White

SKU CH-20MR-F21ET

A white Fa8 single-pin lampholder rated for 660 W at 600 V AC with screw-terminal connections and slide-on mounting

  • Product weight1.5
  • Main materialHAWA
  • Handles high-power fluorescent tubes with 660 W rating
  • Secure screw-terminal wiring accepts 18 AWG conductors
  • Mounts quickly via slide-on design for fast installation
  • Carries cUL and UL listings for code-compliant safety
  • Durable composite finish resists heat and impact in service

Single-pin Fa8 lampholder for 660 W fluorescent

This Hubbell lampholder accepts single-pin Fa8 bases and is rated for 660 W at 600 V AC. It is built for commercial or industrial fluorescent lighting where a slide-on mounting style is required. The white composite finish suits standard interior installations.

Screw-terminal connection handles continuous 1.1

Screw terminals secure 18 AWG conductors for a stable connection under sustained operation. The composite body and cUL/UL listing confirm the holder meets safety standards for continuous use at the rated wattage. No active cooling is involved, so heat dissipation relies on the fixture design.

Verify fixture accepts slide-on mounting

Check that the existing fixture uses a slide-on mounting method and that lamp spacing matches the 1 3/4 in holder length. Confirm the supply wiring is 18 AWG and rated for 600 V AC. This unit is restricted from sale in certain states, so ensure local codes permit its use.

How it compares

Measured against everything we stock in LED Lighting Kits, at today’s prices. Recalculated every night.

Price $8.99
Cheaper than about 93% of the 1,591 comparable items (median $33.99).

Specifications

Product
Brand nameHUBBELL WIRING DEVICE-KELLEMS
Size & build
Main materialHAWA

Questions about this item

How much heat and power does the 660 W, 1.1 A lampholder add to a circuit running all day?

At its 660 W, 1.1 A rating on a 600V AC supply the holder itself dissipates very little heat; nearly all power passes through to the lamp, so the extra load on the circuit is essentially the lamp's wattage.

What wiring and lamp dimensions must I already have for the screw-terminal, slide-on holder to work?

You need 18 AWG conductors for the screw terminals and a single-pin Fa8 lamp with a 3/4 in, 1 in or 1 1/2 in diameter that fits the slide-on mount.

Will the cUL/UL-listed composite holder fit the same 1 3/4 in mounting space as the older Bryant-compatible sockets I am keeping?

Yes, the 1 3/4 in length and slide-on mounting match the legacy Bryant form factor, so it drops into the existing cut-out without modification.

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