SZ-7556T Temperature Controller | 20A Relay with Alarm Output for Panel A/C & Oil Coolers

Product Summary

The SZ-7556T Temperature Controller is built for demanding refrigeration and cooling applications that require reliable alarm outputs and higher relay capacity. With a 20(8)A compressor relay, fault detection input, and precision temperature management, it ensures efficiency, safety, and durability in industrial cooling systems.

Key Features

• Temperature range: 0.0°C to 50.0°C

• Resolution: 0.1°C or 1°C (settable)

• 7 Segment LED display (3 × 17mm)

• High-capacity compressor output: 20(8)A

• Dedicated 5A alarm output

• Cooling & heating mode selection

• Digital input for compressor fault monitoring

• Settable ON & OFF time delay for compressor protection

• Password protection for parameter settings

• Auto operation in case of sensor failure/error

• High & low temperature event logs

• Touch-sensitive keypad for easy operation

• Compact panel-mount housing (78 × 36 × 80 mm)

Applications

• Panel Air Conditioners (Panel A/C)

• Oil Coolers

• Chillers requiring dedicated alarm systems

• Industrial refrigeration systems

• Cooling units where compressor protection and alarm output are critical

Product Benefits

• Heavy-duty performance → 20A relay handles higher loads reliably

• Enhanced safety → Dedicated alarm relay alerts for system faults

• Reliable operation → Auto recovery during sensor failure

• Energy efficiency → Optimized ON/OFF time delay prevents power surges

• User-friendly → Touch keypad and password protection for secure settings

FAQs

Q1. What is the temperature range supported?
It supports 0.0°C to 50.0°C with a settable resolution of 0.1°C or 1°C.

Q2. Does it include an alarm function?
Yes, it has a dedicated 5A alarm relay for fault indication.

Q3. What type of applications is it suitable for?
It is ideal for Panel A/C, Oil Coolers, Chillers, and other critical refrigeration systems.

Q4. How does it protect the compressor?
It includes a 20A relay, ON/OFF delay setting, and fault input monitoring for compressor protection.