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Gray steel enclosure with enamel finish, surface cover, single phase, 100 A 240 V AC

SQUARE D

SQUARE D Molded Case Switch 100 A 240 V AC dimmer switch

SKU CH-V9FW-JD7X2

A 100 A, 240 V AC molded-case safety switch with a steel NEMA 1 enclosure, CSA certified and UL 98 listed

  • Color familyGray
  • Product typeLight Switch
  • 100 A capacity handles heavy lighting loads
  • 240 V AC rating suits standard commercial circuits
  • CSA certified and UL 98 listed for code compliance
  • NEMA 1 steel enclosure protects indoor installations
  • 10 kA short-circuit rating ensures safe fault interruption

Molded Case Switch 100 A 240 V AC

The Square D molded case switch delivers a 100 A, 240 V AC disconnect for residential or light-commercial circuits. It uses a QO-type circuit breaker format with a main-lug configuration and single-phase operation. The steel enclosure carries a NEMA 1 rating and a gray enamel finish for indoor mounting.

Thermal and electrical performance

The unit is rated for a 10 kA short-circuit current rating and meets UL 98 and CSA certification requirements. No active cooling is required because the switch operates passively within its enclosure. Power dissipation remains low during normal switching duty.

Build quality and mounting implications

The gray steel enclosure measures 13.39 in high, 6.14 in wide and 3 1/2 in deep with a surface cover included. Mounting is indoor only on a flat surface. The QO 2-pole breaker compatibility determines the wiring layout and conduit entry planning.

How it compares

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

Price $170.99
Pricier than about 84% of the 791 comparable items (median $39.99).

Specifications

Product
Brand nameSquare D
Product typeLight Switch
Color familyGray

Questions about this item

How is the 100 A molded case switch mounted and what step is often missed?

Mount the steel enclosure to a wall using the 13.39 in height and 6.14 in width dimensions, then install the QO 2P circuit breaker; the step often missed is torquing the main lug connections to the manufacturer specification before energising.

What maintenance or replacement will the switch need over time?

The QO 2P circuit breaker inside the enclosure is the only field-replaceable component; inspect the enamel finish for corrosion and verify the 10 kA short-circuit rating label remains legible during periodic maintenance.

What limit appears first when the switch runs continuously at full load?

The 100 A continuous current rating is the first limit; sustained operation above 100 A at 240 V AC will trip the QO 2P breaker or exceed the 10 kA short-circuit withstand rating of the assembly.

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