Mechanical adjustable pressure switch NT330 series

Principle characteristics

The pressure switch is equipped with a built-in bellows and mechanical structure. When the system pressure rises or falls, the corresponding regulating spring and bellows produce tension or contraction displacement. The switch is pushed by a lever to cut off or connect the control circuit.
Compact structure, wide measurement range (0… 30 bar), high repeatability, adjustable hysteresis, silver plated contacts.

Wiring diagram

Technical Specifications

• Measurement range: see the table below for details
• Delay: see the table below for details
• Error: See the table below for details
• Output: silver plated normally open and normally closed contacts

≤DC 42V，1A
≤DC 115V，0.15A
≤DC 42V，3A
≤DC 125V，3A
≤DC 250V，0.5A

• Medium temperature: -30 ° C to 100 ° C
• Protection: IP33
• Wiring method: Terminal wiring
• Interface thread: M12 * 1.25
• Liquid receiving material: brass with nickel plating
• Shell: NBR

Dimensional drawing (mm)