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Description
Overview
With a high capacity compressor relay, the PSK231 offers a digital controller solution for large compressor (up to 2 HP) open and closed refrigeration units. The PSK231 also provides increased functionality with the multifunction input – which can be configured for a door switch, an evaporator temperature sensor (for temperature terminated defrost), a condenser temperature sensor (for condenser overheat alarm and compressor lock-out) or to trigger energy saving mode. Other features include temperature alarms and easy setup with the optional programming key.

Features
  • The PSK231 controller manages medium temperature refrigeration units by controlling a compressor and sensing temperature
  • Single digital output (relay): 30A compressor, 1HP @ 120VAC, 2HP @ 230VAC
  • Alarm buzzer and TTL serial port (RS485 Modbus)
  • 1 NTC/PTC temperature sensor input
  • 1 multipurpose input (configure as switch or temperature sensor)
  • IP65 front panel protection
  • 3-1/2 digit display shows decimal point values (in Celsius mode) at -10.0° and below
  • Easy to understand multicolor display icons
  • Front bezel size: 2.95” x 1.3” (75 x 33 mm)
  • Panel cut out: 2.79” x 1.14” (71 x 29 mm)
  • Power supply: (N5) 120VAC 50/60 Hz, (N7) 230VAC 50/60 Hz
Specifications
  • TYPE: Digital Thermostat
  • APPLICATION: Medium Temp 1 HP
  • CONNECTION: Extractable Terminal Blocks (Power Supply, Inputs and Output), 6 Pole Connector (Serial Port)
  • SIGNAL OUTPUT: 1 Relay: Compressor Relay- 30 Res. A @250 VAC, 12 FLA, 72 LRA (NO Contact)
  • SIGNAL INPUT: 1 (Multi- Purpose / Door Switch) for NO/NC Contact (Free of Voltage, 5 V 1 mA) also Configurable for Measure Input (Evaporator or Condenser Probe, for PTC, NTC Probes)
  • INPUT VOLTAGE (VAC): 115 VAC
  • COMMUNICATION PORT: Serial Port
  • INDICATOR TYPE: Alarm Buzzer
  • SENSOR TYPE: 1 (Cabinet Probe) for PTC/NTC Probes
  • DISPLAY TYPE: Digital LED
  • MINIMUM WORKING TEMPERATURE (F): 32°
  • OPERATING HUMIDITY: 10%-90% Relative Humidy (Without Condensate)
  • MAXIMUM WORKING TEMPERATURE (F): 131°
  • DEGREE OF PROTECTION (IP): 65
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Manuals (1)
Specs
Product Type:

Temperature Control

Application:

Refrigeration

Temperature Control

Voltage:

115v

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