General Purpose Relay

Q: What are the typical applications for general purpose relays?

A: Ideal for industrial control systems, HVAC, lighting, and appliances requiring low-to-medium load switching (up to 10A).

Q: What parameter adjustments are required when switching different load types (resistive/inductive/capacitive) with general purpose relays?

A: Focus on contact materials (AgSnO₂ or AgNi for arc resistance), arc suppression design, surge current withstand capability. For inductive loads, add back EMF suppression circuits.

Q: How do I choose between a latching and non-latching relay?

A: Use latching relays for energy-saving applications (maintains state without power), and non-latching for momentary control.

Q: How to verify coil power consumption compatibility with operating voltage ranges?

A: Test pick-up/drop-out voltage values at 70%-130% rated voltage. Recommend using coil suppression diodes.

Q: What are the testing standard differences between mechanical and electrical lifespan?

A: Mechanical lifespan follows IEC 61810-1 no-load operation tests (>10^7 cycles). Electrical lifespan requires rated load testing (typically 10^5 cycles).