SQUARE D D211N Safety Switch, General Duty, Fusible, 30A, 2 Pole, 3HP, 120VAC, NEMA 1

Square D D211N safety switch is used in industrial settings to provide a disconnecting means for electrical equipment. It enhances safety by isolating power during maintenance, repair or emergencies. This 30A rated single throw safety switch features NEMA 1 protection. It has a fusible disconnect switch with a 2-pole, 120VAC capacity and a 10kA short circuit rating. This safety switch can be surface-mounted and accommodates electrical connections using lugs accepting 14 - 6 AWG copper / 12 - 6 AWG aluminium wires.

Working Mechanism:

• When set to the on position, it allows the current to flow through the circuit.
• During maintenance or emergencies, the switch is turned to the on position.
• This action disconnects the electrical power flow, increasing safety.
• After addressing the issue, the switch can be returned to the on position, resuming the power flow in the circuit.

Frequently Asked Questions:

Q. What factors should I consider while choosing a safety switch?

A.

• Match switch to circuit requirements.
• Choose a suitable NEMA / IP rating.
• Align with circuit configuration.
• Match with the fault current.
• Fusible / non-fusible as needed.
• Fit space, suitable mounting.
• Support maintenance safety.
• Prevent arcing issues.
• Compatible with load.
• Follow electrical codes and rules.

Q. How do I clean and maintain this Square D D211N safety switch?

A.

• Turn off the power to the circuit.
• Wear appropriate safety gear.
• Check for dirt, dust or corrosion.
• Blow away loose debris using compressed air.
• Gently wipe surfaces with a damp cloth.
• Clean contacts using electrical contact cleaner.
• Ensure that all parts are dry.
• Put components back together.
• Restore power and test the switch.