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井内钻探设备
Relays
Contact Forms: Normally Open (NO), Normally Closed (NC), Single Pole Double Throw (SPDT).
Coil Voltage: 12V, 24V, 110V, 220V, etc.
Contact Capacity: Selected based on load current and voltage.
Switching Frequency: Determines the working life of the relay.
Protection Rating: Varies from IP20 to IP67, dustproof and waterproof.
Sizes: Micro, ultra-thin, standard, etc.
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