Eaton M22-SOL-PVLPL11-2 PV Firefighter Switch, 1NO 1NC, Red Mushroom Head, 2-Pole, 1000V DC, 25A, Panel Mount 152627

Solar installers and maintenance crews use the Eaton PV Firefighter Switch as a rapid shutdown device on rooftop photovoltaic systems. The red mushroom-head actuator provides a clear, latching emergency stop that opens the DC circuit, allowing firefighters to safely isolate the array. With one normally open and one normally closed contact, it integrates into control circuits for status monitoring or interlocking.

Key specifications

• Contact configuration: 1 NO + 1 NC
• Actuator: red mushroom head, latching, pull release
• Rated operational voltage: 1000 V DC
• Rated operational current: 25 A at 1000 V DC (DC-23A), 32 A at 600 V DC
• Number of poles: 2
• Mounting: panel mount, 22.5 mm diameter
• Degree of protection (front): IP66
• Operating temperature: -25 to +70 °C
• Terminal type: screw terminals
• Short-circuit withstand current (Icw): 10 kA
• Mechanical life: >100,000 operations
• Electrical life: >10,000 operations

Why choose it

This switch is built for the high DC voltages found in modern PV strings. The latching mushroom head stays in the off position until deliberately reset, preventing accidental re-energization. Its IP66 front protection withstands outdoor conditions, and the compact 22.5 mm mounting hole fits standard industrial panels.

Ideal use cases

• Emergency disconnect for rooftop solar arrays
• Firefighter safety switch in PV installations
• DC load break for maintenance or service

Good to know

The switch meets IEC/EN 60947-3 and VDE 0660 Part 107 for DC switching. It is designed for panel mounting and connects via screw terminals.