Specifications

Fixed/adjustable undervoltage/over-voltage settings
Resetting Auto or Manual
User-friendly LED indications

These relays are useful for protection of 3-phase AC induction motors against various hazards. With their unique advantages they eliminate use of a thermal/bimetal relay for motor protection. Being current sensing, they are to be selected according to motor rating and are available for practically all ranges of motors. These relays are ideally suitable for Air-conditioning Compressor motor protection, as also for motors in machines, conveyors, cranes/hoists and lifts, and for pumps.

Models

  BMPR B2
  BSPG B2
  B2 CTS1

 

Features

  Fixed/adjustable unbalance settings
  Fixed/adjustable settings for under/over voltage, current, load
  Fixed/adjustable trip delays
  Resetting Auto or Manual
  Output contacts : 1 CO or 2 CO
  Choice of enclosures (DIN-Rail, Flush)
  Models with Micro-Controller based design
  Use of SMD Technology
  User-friendly LED indications

 

Protections/Functions

  Phase Failure (Phase Loss/Single Phasing),
  Phase sequence reversal,
  Voltage Unbalance,
  Under Voltage, Over Voltage
  Overload protection as per motor IDMTL characteristics
  No-load/dry running
  Motor Winding overheating
  Over-current/Short circuit/locked rotor

 

Ordering Instructions

  Product Family Name
  Model Name
  System Supply Voltage & frequency
  Aux. Supply/Control supply voltage
  Motor/Pump rating (HP/KW) & duty
  Overload characteristics required
  No. of PTCs & Temp. graph