Contact protection circuit: When a reed switch is connected to an inductive load (such as magnetic valve, electromagnetic relay, motor, etc.), a protective circuit is required to prolong its operating life.

• 磁簧开关保护电路:当磁簧开关连接到电感负载如(电磁阀、电磁继电器、马达。)需连接一保护电路,以延长其使用寿命。