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The 817-AD thermistor overload relay by Allen Bradley is a reliable component for electrical systems. Operating at a control supply voltage of 110 volts AC, it is equipped with various protective features for enhanced safety.
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| Manufacturer | Allen Bradley |
|---|---|
| Product Type | Thermistor Overload Relay |
| Product Line | Bulletin 817 |
| Part Number | 817-AD |
| GTIN | 10611320956410 |
| Control Supply Voltage | 110 Volts AC |
| Electrical Connection Type | Screw connections |
| Status Indicator | One red LED indicator |
| Power Consumption | 2.5 volt-amperes |
| Continuous Thermal Current | 4 Amperes |
| Reset Method | Automatic reset |
| Operating Frequency | 50 to 60 Hertz |
| Protection Features | Short-circuit and open-circuit protection, and overtemperature protection |
| Vibration Resistance | Up to 3G |
| Surge Voltage | 5 kilovolts |
| Interference Voltage | 2.5 kilovolts |
| Rated Operational Current | 3 Amperes |
| Maximum Permanent Switching Current | 30 Amperes |
The Allen Bradley 817-AD is a thermistor overload relay sought after for its strong performance in managing electrical currents. It accepts a control supply voltage of 110 volts AC and operates efficiently within the 50 to 60 Hertz frequency range. This relay is designed to provide various safety features, including protection against short circuits and overtemperature scenarios, ensuring reliable operation in demanding environments.
With a continuous thermal current capability of 4 amperes, this model effectively safeguards against overload conditions. The rated operational current is positioned at 3 amperes, while it supports a maximum permanent switching current of 30 amperes, which enhances its versatility in different applications. Users will appreciate the screw connections for easy electrical integration. The 817-AD is also fitted with a red LED status indicator, allowing for monitoring of operational states. Power consumption is noted at 2.5 volt-amperes, making it energy-efficient. Its robust construction allows it to withstand vibration levels up to 3G, making it suitable for industrial applications. Additionally, it features automatic reset functionality, which aids in reducing downtime after fault conditions. Protection against surge voltages reaching up to 5 kilovolts and interference voltages of 2.5 kilovolts further enhances the reliability of the device.