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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