The Sigma Engineering INDIC58A Liquid Level Alarm utilizes a high strength drive Magnet especially oriented to actuate a TRIAC Switch at the require point in the refrigeration system. The TRIAC Switch is enclosed in a sealed Replaceable Dial Chamber. The INDIC58A offers a Temperature Operating Range of -40° F to +158° F and is rated up to 450 psi. The INDIC58A also features a TRAIC Liquid Level Switch that is set to a pre-determined Low Level. The Low-Level Setting is approximately pre-set at 30%. When the vessel volume reached this low point, the AC powered TRIAC Switch then sends power to a remote device such as a solenoid valve, motor contactor, or other device.


• AC Voltage: 12V - 240 Volts
• Max Voltage: 240V
• Current: .02 - 1.0 Amps
• Max Current: 1.0 Amps
• Wattage: 0 - 150 Watts
• Max Wattage: 150 Watts
• SPST Switch: Normally OPEN to CLOSE at 45° From Horiz.
• Preset Level: Approximated at 15-20% at 45°
• Temp Range: -40° F to +158° F
• Safe Working Press: 450 psi (with approved SS mounting screws)
• Torque: 8-10 ft-lbs each Cap Screw