Applications

Protection and control of sewage pumps.

Main features

With open phase,stalled,over current,Dry run,Over/under voltage protection function on Both manual and auto mode. It can realize automatic control by liquid level float balls or air pressure
sensors.

Technology parameter:

• Rated Output Power: 0.37-2 .2 kW ( Refer to the nameplate )
• Rated Operating Voltage: AC220V ( Refer to the nameplate )
• Trip response time of over current: 5 sec-5 min ( Inverse time characteristic - the higher the current , the shorter the time)
• Recovery time of under / over voltage: 2min
• Trip response time of pump stalled: <0. 1 seconds
• Trip response time of over voltage:< 6sec
• Trip response time of under voltage:< 15sec
• Trip voltage of over voltage: 115% of rated input voltage
• Trip voltage of under voltage: 80% of rated input voltage
• Dry-Run Protection Trip Time: 30 seconds
• Over current Fault Recovery Time: 1 minute
• Dry-Run Fault Recovery Time: 1 minute
• Trip response time of short circuit: <0. 1sec
• Liquid level transfer distance: ≤ 1000m
• Degree of protection: IP65
• RS485 transmission distance: within 1200 meters ( using twisted-pair shielded cable STP-120Ω (for RS485 & CAN) one pair 20 AWG)
• Attention: In case of thunderstorm,please be sure to turn off the power.
  Open phase only support in three phase model

This product is suitable for normal working environment , avoid installation in the following environment:

TROUBLE SHOOTING GUIDE