1. Load type and requirements:

2. Rated voltage:

3. Load control type:

Single or three-phase: If three-phase power supply is involved in the system, select the current relay for three-phase power supply. Single-phase and three-phase current relays have different connection and working principles.

4. Response time and action characteristics:

5. Environmental conditions:

Protection grade: If the relay will be used in a wet or dusty environment, select the relay with the appropriate protection grade to ensure its long-term stable operation.

6. Reliability and longevity:

Manufacturer reputation: choose current relays produced by well-known manufacturers, who usually provide more reliable products with good after-sales service.

7. Dimensions and installation requirements:

QIANJI Relay, China's top relay supplier, engaged in foreign trade industry for more than 30 years, quality, service is guaranteed!