OTP series 3-prong standard heavy duty connector is standard sized with round pins. This quick disconnect plug and jack provides reliable connections between thermocouple, RTD or thermistors and extension wires. TheseColor-coded bodies are molded of high performance glass-reinforced nylon. Tubular plug prongs and collet-type jack inserts have low mass and reduce temperature gradients. Negative prongs and inserts are larger than positives to insure proper polarity upon connection. This is a standard feature on all OMEGA™ connectors. Recommended for most applications requiring three-wire circuits, including shielded thermocouples, thermistors and RTDs. Especially useful for continuing thermocouple shield leads through panel jacks. Will withstand ambient temperatures to 220°C.