Applications
Used in switchgear, air conditioning units, elevator machine room, pumps, fans and other motor control applications, With phase loss, overload protection.
Features:
Built-in microcontrollers, current measurement accuracy≤0.2%. Konb setting, LED indicator shows working status. With phase failure, overload, unbalance, stall protection, four optional trip classes. No-load start, protection of any phase loss or overload.NO contact protection.
Model Description
Model Selection Table
| Model |
Rated working current range |
Applicable motor power(AC380V) |
| ZHRA1 K -5 |
1A~5A |
0.55kW~2.2kW |
| ZHRA1 K -20 |
4A~20A |
2.2kW~7.5kW |
| ZHRA1 K -40 |
8A~40A |
3.7kW~17kW |
| ZHRA1 K -80 |
16A~80A |
11kW~37kW |
| ZHRA1 K -200 |
40A~200A |
55kW~90kW |
| ZHRA1 K -400 |
80A~400A |
45kW~185kW |
Technical Parameters
| Rated control supply voltage |
AC380V,AC220V 50/60Hz |
| Current measurement accuracy |
≤2% |
| Setting accuracy |
≤5% |
| Setting mode |
Knob setting |
| Number of poles |
3P |
| Rated insulation voltage |
AC690V |
| Class of pollution |
3 |
| IP Class |
IP20 |
| Type and set of contacts |
95 |
| Contact capacity |
Ith:5A;AC-15:Ue/Ie 380V/0.95A 240V/1.5A |
| Use category |
AC-15 |
| Electrical Life |
105 |
| Mechanical life |
106 |
| Altitude |
≤2000m |
| Allowable relative humidity |
≤50%(40ºC)(NO condensation) |
| Power consumption |
≤1.5 VA |
| Installation |
Screw or DIN rail mounting |
Wiring Diagram
Dimensions(mm)
Audited Supplier 
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