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Gray malleable iron shallow electrical box with 1 inch hub and 2.87 inch width

Hubbell Incorporated

Hubbell Incorporated KILLARK FSC-3M electrical box 1 in hub shallow 2.87 in W

SKU CH-59RZ-CZYHB

A shallow malleable-iron device box with a 1 in hub, 32 cu in capacity and internal grounding screw

  • Product typeElectrical Boxes & Enclosures
  • 32 cu in capacity for multiple conductors
  • 1 in hub size fits standard conduit
  • Malleable iron construction resists impact
  • Internal grounding screw simplifies bonding
  • Tapered threads ensure secure conduit connection

Single-gang device box with 32 cu in capacity

The Hubbell Killark FSC-3M is a shallow malleable-iron device box designed for surface-mounted electrical installations. Its single-gang layout and 32 cubic-inch capacity suit junction or device wiring in commercial and industrial settings.

Gray malleable iron dissipates heat

The gray malleable-iron body handles mechanical stress and temperature variation without deforming. Tapered threads on the two 1-inch hubs create a tight seal that limits moisture ingress during normal operation.

Two 1-inch hubs and internal grounding screw

Two inlets allow straight or angled conduit runs while the internal grounding screw provides a dedicated equipment-ground connection. Mounting holes on 1-inch centres align with standard straps for secure attachment to walls or structures.

How it compares

Measured against everything we stock in Electrical Enclosures & Cabinets, at today’s prices. Recalculated every night.

Price $35.99
Typical for this category: the median of 1,411 items is $39.99.

Specifications

Product
Brand nameKILLARK
Product typeElectrical Boxes & Enclosures

Questions about this item

How do I install the Hubbell Killark FSC-3M box and what is the common mistake with the 1 in hub?

Mount the box using the 1 in on-center holes, then thread rigid conduit into the 1 in tapered hubs; the step often missed is tightening the internal grounding screw to bond the malleable iron enclosure.

What maintenance or replacement will the FSC-3M electrical box need over time?

The malleable iron body and gray finish are corrosion-resistant; periodically check that the internal grounding screw remains tight and that conduit threads are free of moisture or debris.

What is the fill limit that appears first during sustained use of this 32 cu in box?

The 32 cubic inch capacity governs the maximum number of conductors allowed; exceeding this fill limit is the first constraint encountered under continuous wiring additions.

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