P77 Series adjustable single pressure switch IP54

The P77 Series Pressure Controls are also compatible with most common refrigerants.

• All-steel case and cover provides long-lasting, rugged protection for internal components
• Sight-set calibrated pressure adjustment displays a visible pressure scale, fully adjustable through the range without removing the cover (on NEMA 1 enclosure models)
• Manual reset lockout option provides trip-free lockout that cannot be overridden or reset until pressure returns to specified level