3 Phase Voltage Monitoring Relay

Over-voltage

Under-voltage

Unbanlance

Action delay

Phase sequence

Phase failure

Rated voltage adjustable

Reset delay

Output contacts

ZHRV3-09

15%

-15%

-

2s

●

●

●

2s

Z

P-P: AC 3×208V→3×440V; P-N: AC 3×120→254V

Rated supply working voltage range

P-P: AC 166V→528V; P-N: AC 96V→239V

Rated supply frequency

50/60Hz

Rated working voltage selection

M440:208-220-230-240-380-400-415-440(V)(P-P)
M254:120-127-132-138-220-230-240-254(V)(P-N)

Measuring range

AC 166V→528V; AC 96V→239V

Measurement frequency range

45Hz~65Hz

Voltage threshold range

2%~20%

Unbalance threshold range

5%~15% of rated voltage

Fixed hysteresis rate

2%

Phase failure and phase sequence

＜0.5s

Action delay range

0.1s~10s

Reset delay range

0.1s~10s

Voltage measurement error

≤1%(Entire setting range)

Delay error

±10%+0.1s

Knob setting accuracy

1%Scale value

Rated insulation voltage

440V

Contact configuration capacity(A）

2C/O 8A;1C/O+C C/0 5A

IP Class

IP20

Class of pollution

Ⅲ

Electrical Life

105

Mechanical life

106

Altitude

≤2000m

Allowable relative humidity

≤50%(40℃)(No condensation)

Use category

AC-15

Contact capacity

Ue/le:250V/1.5A

Output type

2C/O;1C/O+1C/0

DIN rail Standard

(width) 35mm (IEC/EN60715)