产品名称：PFS2 相故障继电器

Introduction: It is a Phase Failure Relay. It is best suitable for protection of balanced 3 phase loads or 3 phase Motor / Pump loads only. It offers protection against Phase Failure, Phase Unbalance, Phase Sequence Reversal, Under Voltage & Over Voltage faults. It is useful for incoming side, Mains Supply monitoring, General voltage faults, AMF/Transfer Switch Panels & Pump Control Panels. It is available in 8 pin Plug-in base mounting & flash mounting enclosure.

Features: · Monitors all 3 phases of Voltage Supply. · Built-in Auxillary Supply. · LED Indications for Power ON & Fault. · Auto Reset. · 8 PIN socket base mounted Enclosure.

Application Areas: It is useful for monitoring incoming Mains Power Supply for unbalance voltage faults in Air-conditioning & Pump Control Panels. It is available in DIN Rail mounting enclosure.

Technical Specifications:

Sr. Parameter Specifications 1 Supply Voltage System 110 / 240 / 380 / 415 V AC ±10%, 50 / 60 Hz; Auxiliary Built-in 2 Output Contacts 1 CO 3 Trip Setting (Volts) Phase unbalance 40V ± 6V (fixed); Under Voltage N.A.; Over Voltage N.A.; Water Level N.A. 4 Trip Time Delay On Phase Failure/Seq. 3.5 sec. ±1.5 sec. 5 Resetting Mode Auto 6 Weight 175 gms. 7 Dimensions (mm) Overall (L x W x D) 50 x40 x 80; Mounting (L x W) 8 - Pin Plug-in