When troubleshooting a hydraulic system, it’s often discovered that the problem is not hydraulic at all, but rather electrical. Brian Smith, owner of SDSi LLC recently introduced the 4PLC, a 4-pin lighted connector, which makes it easy to see if power is getting through. A follow-up to his US patented 2PLC connector, the connector is compatible with receptacles often molded into electrohydraulic solenoid valves and switches.
Potential applications include construction, mining, forestry, oilfield, agricultural, and waste-handling equipment. Both the 2PLC and 4PLC connectors carry a 12/24-V dc, 13-A rating. They feature a thermoplastic housing and elastomer sealing gasket to exclude dirt and moisture, plus two-part polymer epoxy plug potting to further prevent moisture wicking and failures from shock or vibration.