ELECTRIC CONTROL BOX(ECB-BZR-100 Direct Clooing,ECB-BZR-300 Air Cooling) 
DOUBLE-MENU MANAGEMENT MODE:USER MENU AND ADMINISTRATOR   new optimizing product especially designed for refrigerant units. Double-sensor control, proper and complete protect.   Functions and features:   Double-menu management mode: user's menu and manager's menu setting. Common user only need to set the temperature and return difference
Double temperature measuring sensors to independently control the temperature of compressor and defroster, more safe and economic
Single-point temperature calibration, return difference for temperature controlling, easier-to-operate
Comprehensive protection function of compressor
Auto and manual control function
Sensor error alarm and alarm when exceeding the temperature limits functions
Compressor start-up delay adjustable         Technical parameters:   ·Power supply: Three-phase five-wire (or three-phase four-wire), 380 VAC ± 10%, 50Hz
·Temperature measuring and controlling range: -50°C~+50°C
·Accuracy: ± 1 °C
·Resolution: 0.1
·Compressor start-up delay protection time: 0-120 minutes (Adjustable)
·Compressor control Max capacity (KW): 11
·Fan control Max capacity (KW): 4
·Defrost control Max capacity (KW): 11
Start frequency protection compressor overheating protection exhaust temperature protection       ECB-20       ECB-10       ECB-5060     ECB-5080     ECB-30     ECB-100     ECB-200