Nonfusible, Safety Switch, General Duty, 240 V, 3PST, NEMA 3R

The SQUARE D - DU321RB is a Safety Disconnect Switch, an essential device in industrial electrical systems designed to interrupt the flow of electricity for safe equipment maintenance and emergency situations. This switch falls under the broader category of Electrical Supplies and is used by industry professionals to safely disconnect power systems, reducing the risk of electrical accidents during routine operations or unexpected events.

• Amps AC: This switch is rated for a 30 A current, which is within its specified operational parameters.
• Certifications: UL listed file E2875 certification indicates that this safety disconnect switch has been tested to meet recognized safety and quality standards.
• Contact Form: The 3PST contact form indicates how many circuits can be controlled and whether they are normally open (NO) or closed (NC), determining the functionality of the safety disconnect switches.
• Device Application: Intended for residential use, it can be installed in homes where there is a requirement to control the power supply to various appliances and devices.
• Disconnect Type: As a non-fusible disconnect switch, it employs a mechanism to manually break the circuit rather than using replaceable fuses that melt when overheated.
• NEMA Enclosure Rating & Type: With a NEMA 3R rating, this enclosure type indicates compatibility with certain environmental conditions such as dust, water, corrosion and external ice formation. It may be used in both indoor/outdoor environments according to these specifications.
• Housing Material & Construction Material: Constructed from galvannealed steel known for its properties of durability and resistance against corrosion. Its suitability depends on specific usage requirements."