Square D A16.2 Overload Relay Thermal Unit
The Square D A16.2 Overload Relay Thermal Unit is engineered to safeguard motors, controllers, and branch circuit conductors from excessive heating due to prolonged overcurrent conditions, including locked rotor currents. This thermal unit is compatible with Square D motor starters and thermal overload relays, ensuring reliable protection in various motor control applications.
Key Features
- Full Load Current Range: 10.9 to 12.1 Amps
- Sensing Method: Melting Alloy
- Trip Class: 20
- Voltage Rating: 600 VAC
- Mounting Type: Plug-In
- Frame Size: A, S
- Operating Temperature: Up to 40°C
Functionality
Designed with a one-piece construction, the A16.2 thermal unit operates by allowing motor current to pass through a small heater winding. Under overload conditions, the generated heat causes a special solder to melt, enabling a ratchet wheel to spin freely. This action opens the control circuit contacts, effectively disconnecting the motor and preventing potential damage.
Applications
The A16.2 thermal unit is suitable for use with Square D motor starters and thermal overload relays, providing essential protection in motor control systems. Its design ensures compatibility with various models, including but not limited to:
- 2510FF1
- 2510FF1P
- 2510FF1PG
- 2510FF2
- 2510FG1
- 2510FG1P
- 2510FG1PG
- 2510FG2
- 2510FG2P
- 2510FG5
- 2510FG5P
- 2510FG6
- 2510FG6P
- 2510FG71
- 2510FG71P
- 2510FG71PG
- 2510FO1
- 2510FO1P
- 2510FO2
- 2510FO2P
By integrating the Square D A16.2 Overload Relay Thermal Unit into your motor control systems, you ensure enhanced protection against overcurrent conditions, contributing to the longevity and reliability of your equipment.
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