NTC Colling 20Amp
Main Features
Cooling output.
Memory retention, time delay for compressor protection.
Auto operation incase of sensor error.
Input & Output
Relay output :SZ-7510E – 8(3)A / SZ-7569E – 20A (Inductive).
Temp. Sensor Input : 1 NTC.
Application General appliances like deep freezers, display cabinet, pastry cabinet.
General Specification
Temperature range -50°C to +50°C.
230VAC Standard. Other models with 12VDC, 24VDC, 110VAC on request.
Panel cutout : 29 X 71 mm Screw terminals : Admit 1X 2.5 mm² wire.
Spade terminals for compressors (For SZ-7569-E only).

NTC Colling Digital Input
Main Features
Cooling & Heating output.
Memory retention, time delay for compressor protection.
Auto operation incase of sensor error.
Power switch.
Digital input (HP, LP, OSS, Phase Loss).
Input & Output
Relay output : 8(3)A.
Temp. Sensor Input : 1 NTC.
Application Chiller machines & similar applications.
General Specification
Temperature range -50°C to +99°C.
230VAC Standard. Other models with 12VDC, 24VDC, 110VAC on request.
Panel cutout : 29 X 71 mm Screw terminals : Admit 1X 2.5 mm² wire.

NTC Cooling Buzzer Hot-gas Heater Dfrost Door I/P
Main Features
LCD with backlighting to display all parameters.
2 NTC probes for cold room temp + evap. coil temperature.
Relay outputs : Compressor + Cond. Fan + Heater + Evap. Fan + Alarm.
Audible alarm. •Digital inputs : 2nos (a) Door switch (b) Pressure cutout.
HP/LP/OSS trip protection for compressor. •Compressor protection algorithm.
Auto/Mannual defrosting facility (Time/Temp based).
Special software to indicate probable heater fault.
Input & Output
Relay Output 1 : 8(3)A Compressor.
Output 2 : 8(2)A Heater.
Output 3 : 8(2)A Evaporator Fan.
Output 4 : 8(3)A Condenser Fan.
Output 5 : 5A Alarm .
Temp. Sensor Input : 2NTC for Cold room chamber and Evaporator Coil.
General Specification
Temperature range: -50°C to +50°C.
230VAC Standard. 110VAC on request.
Panel cutout : 92 X 92 mm Screw terminals : Admit 1X 2.5 mm2 wire.

NTC Colling Buzzer
Main Features
Switch off compressor at setpoint.
Manual reset is required to re-start.
Buzzer output on achieving antifreeze set point.
Input & Output
Relay output : 8 (3)A.
Buzzer output :10VDC, 10mA Max.
Temp. Sensor Input : 1 NTC with ½’’ BSP connection.
Application Chiller machines.
General Specification
Temperature range -50°C to +50°C.
230VAC Standard. Other models with 12VDC, 24VDC, 110VAC on request.
Panel cutout : 29 X 71 mm. Screw terminals : Admit 1X 2.5 mm² wire.