B1 VCR1 BCT B2 BCF B2 B2 VCT1 Series Monitoring Relays
Specifications
Fixed/adjustable undervoltage/over-voltage settingsResetting Auto / Manual / Remote
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
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