説明
ITEM NO:ER44
- Number of contact groups: 4 groups type: 4transition、4NO 4NC
- rated contact current :40A
- Form of protection:closed type (dustproof)
- Terminal Configuration:quick-insert(Equipped with specialspring) PCB type
- application place :Mainly used for three-phase (four-way) motor control.
Product Performance
Outline drawing, wiring diagram, installation dimensions
Selection Guidelines
Unless otherwise specified, all load currents indicated on the relay housings refer to resistive loads. At the rated switching voltage, the allowable current for inductive loads should not exceed 30% of the rated resistive load current. For motor loads, the allowable current should not exceed 20% of the rated resistive load current. For lighting loads, it should not exceed 10%. For capacitive loads, it should not exceed 5%. To ensure reliable operation of the product, it is recommended that the contact load current not exceed 60%–70% of the steady-state current at the rated load.
| Nature of the load | Inrush current |
| Resistive load | 1 times the steady-state current |
| Sodium lamp load | 1-3 times the steady-state current |
| Mercury lamp load | 3 times the steady-state current |
| Inductive load | 3-5 times the steady-state current |
| Motor load | 3-5 times the steady-state current |
| Transformer load | 3-5 times the steady-state current |
| Incandescent lamp load | 3-5 times the steady-state current |
| Capacitive load | 3-5 times the steady-state current |
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