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Grey metal NEMA 3R enclosure safety disconnect switch with lugs, 100A 240V AC 3PST

SQUARE D

SQUARE D DU323RB Nonfusible Single Throw Safety Switch General Duty 240V AC 100A

SKU CH-YXQE-DA1MZ

A general-duty safety disconnect switch rated 100 A at 240 V AC with a 3PST contact form and NEMA 3R enclosure for outdoor use

  • Product typeLight Switch
  • Non-fusible design simplifies maintenance and reduces component cost
  • 100 A rating supports heavy-duty motor and lighting loads
  • 240 V AC operation matches standard commercial supply voltage
  • NEMA 3R enclosure resists rain, dust and external ice formation
  • 3PST contact form isolates three poles simultaneously for safety

Industrial Safety Disconnect Switch

The SQUARE D DU323RB is a non-fusible safety disconnect switch rated for 240 V AC and 100 A. It uses a 3PST contact form to break three poles simultaneously. The NEMA 3R enclosure resists dust, rain and external ice formation in outdoor or damp locations.

Verify Your Installation Requirements

Confirm the supply voltage does not exceed 240 V AC and the load current stays within the 100 A rating. Ensure the existing conduit and wiring are compatible with lug-type terminals. The NEMA 3R rating suits outdoor or wash-down areas but is not rated for hazardous or fully submerged environments.

Lug Terminals Simplify Field Wiring

The lug connection accepts standard conductors for secure termination without special tools. The general-duty construction targets routine motor-disconnect and panel isolation tasks rather than heavy-duty or continuous high-fault-current applications. No fuses are included or required for switch operation.

How it compares

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

Price $472.99
Pricier than about 92% of the 791 comparable items (median $39.99).

Specifications

Product
Brand nameSquare D
Product typeLight Switch

Questions about this item

What comes with the DU323RB safety switch and what must be purchased separately?

The switch ships as a complete NEMA 3R enclosure with lug terminals ready for conductor installation. Conduit, wire, fuses or circuit breakers for the 100 A, 240 V AC supply are not included and must be sourced separately.

How do I choose between the available versions of this 3PST general-duty switch?

The DU323RB is a single model rated 100 A at 240 V AC with a 3PST contact form and NEMA 3R enclosure. No alternative ampere ratings, voltage classes or enclosure types are offered for this part number, so selection is simply confirming those ratings match the circuit.

What does the 100 A rating mean when the switch is installed in a live panel?

The 100 A figure is the maximum continuous current the 3PST contacts can carry at 240 V AC without overheating. The NEMA 3R enclosure resists rain, sleet and external ice formation, so the rating holds in outdoor or damp locations when properly wired to the lug terminals.

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