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A17.9 | Schneider Electric Class 20 Thermal Overload Unit Melting Alloy Type A/S
- Regular price
- $45.00
- Sale price
- $45.00
- Regular price
-
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Product Description P/N: A17.9
Description
The Schneider Electric A17.9 is a thermal overload unit designed to protect motors and control circuits from prolonged overcurrent conditions. Built with a melting alloy mechanism and classified as Class 20, this unit provides reliable overload protection when used in motor starters and controllers.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Schneider Electric |
| Category | Contactors & Starters |
| Part Number | A17.9 |
| Subcategory | Thermal Overload / Heater |
| Product Range | A |
| Thermal Overload Type | Melting Alloy |
| Motor Tripping Class | Class 20 |
| Heater Type | Type A / Type S |
| GTIN | 785901585497 |
| Returnable | Yes |
Information About A17.9
The A17.9 is a thermal overload unit from the Schneider Electric A range, engineered to protect motors, motor controllers, and branch circuit conductors from excessive heating caused by sustained overload conditions. It utilizes a melting alloy construction that responds predictably to prolonged overcurrent, including locked-rotor scenarios. Classified as a Class 20 thermal unit, it trips within 20 seconds or less under defined overload conditions, ensuring timely interruption of the control circuit. Short-circuit and ground-fault protection remain the responsibility of upstream fuses or circuit breakers, allowing the A17.9 to focus exclusively on thermal overload protection.
Key Features
- Class 20 Thermal Protection: Designed to trip within defined time limits during sustained motor overload conditions.
- Melting Alloy Construction: Uses a heat-sensitive alloy to provide consistent and repeatable overload response.
- Type A and Type S Compatibility: Supports standardized integration with compatible motor starters and controllers.
- Motor and Conductor Protection: Safeguards motors and branch circuit conductors from excessive thermal stress.
- Single-Piece Heater Design: Allows motor current to pass directly through the internal heater element for accurate sensing.
- Control Circuit Interruption: Opens control contacts during overload events to stop motor operation and prevent damage.
- Industrial Reliability: Designed for long-term use in motor control and industrial automation environments.
The A17.9 delivers the reliability and precision required for dependable motor overload protection in industrial motor control applications.
Description
The Schneider Electric A17.9 is a thermal overload unit designed to protect motors and control circuits from prolonged overcurrent conditions. Built with a melting alloy mechanism and classified as Class 20, this unit provides reliable overload protection when used in motor starters and controllers.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Schneider Electric |
| Category | Contactors & Starters |
| Part Number | A17.9 |
| Subcategory | Thermal Overload / Heater |
| Product Range | A |
| Thermal Overload Type | Melting Alloy |
| Motor Tripping Class | Class 20 |
| Heater Type | Type A / Type S |
| GTIN | 785901585497 |
| Returnable | Yes |
Information About A17.9
The A17.9 is a thermal overload unit from the Schneider Electric A range, engineered to protect motors, motor controllers, and branch circuit conductors from excessive heating caused by sustained overload conditions. It utilizes a melting alloy construction that responds predictably to prolonged overcurrent, including locked-rotor scenarios. Classified as a Class 20 thermal unit, it trips within 20 seconds or less under defined overload conditions, ensuring timely interruption of the control circuit. Short-circuit and ground-fault protection remain the responsibility of upstream fuses or circuit breakers, allowing the A17.9 to focus exclusively on thermal overload protection.
Key Features
- Class 20 Thermal Protection: Designed to trip within defined time limits during sustained motor overload conditions.
- Melting Alloy Construction: Uses a heat-sensitive alloy to provide consistent and repeatable overload response.
- Type A and Type S Compatibility: Supports standardized integration with compatible motor starters and controllers.
- Motor and Conductor Protection: Safeguards motors and branch circuit conductors from excessive thermal stress.
- Single-Piece Heater Design: Allows motor current to pass directly through the internal heater element for accurate sensing.
- Control Circuit Interruption: Opens control contacts during overload events to stop motor operation and prevent damage.
- Industrial Reliability: Designed for long-term use in motor control and industrial automation environments.
The A17.9 delivers the reliability and precision required for dependable motor overload protection in industrial motor control applications.