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The Allen Bradley W63 serves as a thermal overload relay heater element, compatible with several controller sizes, including Size 00, Size 0, and Size 1. Designed for continuous duty motors, it ensures reliable thermal protection within specified parameters.
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Technical specifications for W63
| Manufacturer | Allen Bradley |
|---|---|
| Product Type | Thermal Overload Relay Heater Element |
| Product Line | Bulletin 500 Accessories |
| Part Number | W63 |
| Weight | 0.06 lbs (0.03 kg) |
| UPC | 781180154683 |
| Controller Size Compatibility | Size 00, Size 0, Size 1 |
| Motor Duty Compatibility | Continuous duty motors with service factor ≥ 1.15 |
| Trip Time at 600% Rated Current (Class 30) | Not applicable (Type WL only) |
| Trip Time at 600% Rated Current (Class 10) | Not applicable (Type J only) |
| Trip Time at 600% Rated Current (Class 20) | ≤ 20 seconds |
| Overload Relay Type | Eutectic Alloy Overload Relay |
| Relay Class Compliance | NEMA ICS 2, Part 4 |
| Rated Voltage Compatibility | 600 V AC |
| Size 1 Full Load Amperes (FLA) | 28.3 A |
| Size 00–0 Full Load Amperes (FLA) | 28.0 A |
| Trip Class | 20 |
| Heater Element Type | W (Eutectic Alloy) |
The W63, a thermal overload relay heater element manufactured by Allen Bradley, provides essential protection for motors by detecting overheating conditions. This specific model is compatible with controller sizes 00, 0, and 1, making it versatile for various applications. It operates effectively with continuous duty motors that possess a service factor of 1.15 or higher, ensuring safety during operation without premature tripping.
In terms of trip time characteristics, the W63 has a trip time of 20 seconds at 600% rated current for Class 20 ratings. For other relay classes, such as Class 10 and Class 30, the trip times do not apply, indicating particular specifications for varied applications. This heater element employs an eutectic alloy design, known for its reliability and performance in overload situations. It is rated to support up to 600 V AC, suitable for high voltage environments.
For Size 1, the full load amperes (FLA) rating is set at 28.3 A, while Sizes 00–0 have an FLA of 28.0 A, accommodating a range of motor capacities. This heater element type is classified under Class 20, ensuring it aligns with relevant regulatory requirements for thermal overload protection. Overall, the Allen Bradley W63 thermal overload relay heater element plays a crucial role in safeguarding motors from thermal damage.