PR 240 Intelligent Digital Motor Thermal Protector Relay Used for 3 phase Electric Motor
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PR 240 Intelligent Digital Motor Thermal Protector Relay Used for 3 phase Electric Motor
Description
PR 240 is an excellent choice for telemetry applications to monitor, meter and control Motor. Its small size, low cost and remote HMI options make the relay a perfect option for power distribution systems to be used in end-of-line monitoring and power metering.
PR240 offers low-voltage motor protection in almost all applications, including pumping, air-based, chiller, and bulk-material applications. It can be configured as full range of medium-voltage, three-phase induction and synchronous motors protect relay.
Features
l Panel mounting HMI unit and Din-rail mounting control unit.
l Suitable for Motor under 0.66KV and any current range.
l HMI unit provides 3-phase current voltage monitors, Power Measurement.
l Control unit builds in 200A CT, out of range use ../5A CT connect.
l Abundant protection modes can be freely selected to alarm or trip.
l Can select a variety of startup modes for different wiring application.
l RS-485 network communications.
l 4 digital outputs, and 7 digital inputs.
l Optional 1 programmable analog output
Applications
l Power distribution system
l Monitor, meter and control motors
Specification
Electrical parameters | |
Auxiliary Power | 85-265Vac/dc |
Power consumption | <4 VA |
Insulation resistance | >100MΩ |
Relays | 5A/250VAC, 5A/30VDC (NO contact) |
Motor rated voltage | AC220V / AC380V / AC660V |
Motor rated current | 0.5-200A use internal CT |
Leakage current sensor(1) | 0-1A |
Impulse withstand voltage | 4 kV |
Measuring accuracy: | |
Current | ± 0.5% @ 10~120% Ie |
Voltage | ± 0.5% @ 10~150% Ue |
Frequency | ± 0.1% @ 45~65Hz |
Power factor | ± 1% @ 0.0~1.0 |
Power | ± 1% @ 0~500 kW |
Leakage current | ± 1% @ 10~100% Ir |
Temperature | ± 1% @ 0.1~30 K |
Analog Output | ± 1% (4 ~ 20mA) |
External port: | |
Comm port(2) | RS485 MODBUS-RTU |
Digital input | Regular 7DI, max11 DI(3) |
Digital output | Regular 2DO, max 6DO(4) |
Analog Output | Optional 1AO |
Working environment: | |
Working temperature | -10C ~ +55°C |
Storage temperature | -30C ~ +70°C |
Relative humidity | < 93% RH |
Elevation | Less than 3000 m |
Electrical test: | |
Standard reference | IEC 60947-1 |
IEC 60947-4 | |
Electrostatic discharge | Severity: level III |
Severity | Severity: level III |
Surge | Severities: level III |
Voltage Characteristics | Between two of the power / input / output between AC2kV/1min |
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