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RH-Q31H
  • RH-Q31H
  • RH-Q31H
  • Add:No.27 East Huancheng Road,Liushi Town,Yueqing City,Zhejiang Province,325604 China
  • Zip:325000
  • Tel:86-577-61759370
  • Fax:86-577-61759560
  • Web:
  • E-mail:REHE@rhkeji.com
Product

Feature

Measure active power, reactive power and apparent power of three-phase power grid with high-precision.

Provide LED or LCD display and local data query.

Programmable current and voltage transformation ratio.

Support RS-485 communications and Modbus-RTU protocol.

Support switch input, switch output and analog output.

Power supply: AC / DC 80V~270V 、AC 220V、AC 380V、AC 100V、DC 48V、DC24V

There are various choices of dimensions to meet the requirements of different electrical circuit enclosure.

Technical Index

Accuracy Measurement

Active power     class 0.5

Reactive power   class 0.5

Apparent power   class 0.5

Input Measurement

Wiring      single-phase、3-phase 3-wire、 3-phase 4-wire

Rated value    Voltage:A C 5 7 . 7 V、A C 1 0 0 V、A C 2 2 0 V、A C 3 8 0 V , Current :A C 1 A、A C 5 A

Overload     Voltage:Sustained: 1.2 times; Instantaneous: 2 times/ 1s

         Current:Sustained: 1.2 times; Instantaneous: 10 times/ 5s

Power consumption   Voltage: <1VA (per phase),Current: <0.4VA (per phase)

Impedance    Voltage: >300KΩ , Current: <20mΩ

Frequency    45~65Hz

Power supply

Working range     A C / D C 8 0 V ~ 2 7 0 V、A C 2 2 0 V、A C 3 8 0 V、A C 1 0 0 V、D C 4 8 V、D C 2 4 V

Power consumption  < 4 V A

Functional Module

Communication interface   1 loop RS-485 Communication, MODBUS-RTU protocol

                   Baud rate: 2400 ~ 19200bps, Default: 2400bps

Switching value input          4 loops switching value input, dry joint

Switching value output       3 loops relay output, capability: AC 250V/5A,DC 30V/5A

Transmission output       3 loops analog output: 0/4~2 0 m A o r 0~5 / 1 0 V

Environment

Operational environment       - 1 0℃~ + 5 5℃

Storage environment         - 2 5℃~ + 7 0℃

Relative humidity       ≤9 3 %,in the place without corrosive gas

Height above sea level    ≤2 5 0 0 m

Safety

Insulation resistance     > 1 0 0 MΩ

AC withstand voltage     A C 2 K V

Electro Magnetic Compatibility

Electro-Static discharge              class 4

Electrical Fast Transient pulse train    class 4

Electrical surge                       class 4

Outline Dimension

External Dimension( m m )    1 2 0×1 2 0;8 0×8 0;9 6×4 8;9 6×9 6;8 0×8 0;4 8×4 8;1 2 0 x 6 0;1 6 0 x 8 0

Cutout Dimension( m m )      1 1 1×1 1 1;7 6×7 6;9 2×4 5;9 2×9 2;6 8×6 8;4 5×4 5;1 1 4 x 5 6;1 5 2 x 7 6

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