Okay, here is a product introduction for the NDR1-38A22 Genuine Nader Liangxin Thermal Overload Relay, crafted in a professional, technical style using Markdown.
Product Introduction: NDR1-38A22 Genuine NR1-38A22** is a precision-engineered electronic thermal overload relay designed and manufactured by Nader Liangxin Electrical. This genuine component serves as a critical protective device within motor control centers (MCCs), ensuring operational safety and longevity for three-phase AC motors operating at 220V nominal voltage. This model offers an adjustable trip current range specifically calibrated for 5.5 to 8 Amperes.
Key Features & Capabilities
- Advanced Protection: Functions as an electronic fuse, providing highly reliable protection against sustained motor overcurrent conditions caused by phase loss, overload, or imbalance. This prevents excessive temperature rise and potential damage to critical motor windings and insulation.
- Precise Trip Threshold: Features fine-tuned adjustability within the 5.5A to 8A range, allowing for the exact matching of the trip setting to the protected motor's full load current (FLA). This ensures optimal protection without nuisance tripping.
- Modular Mounting: Designed for convenient DIN Rail mounting (typically alongside contactors), facilitating integration and maintenance within control panel assemblies.
- Compatible Voltage: Rated for operation within 220V three-phase systems, making it suitable for a wide range of standard industrial and commercial applications.
- BRC Terminal Connection: Equipped with BRC flat terminal strips, ensuring secure and reliable connection to the power circuit.
- Auxiliary Contacts: Includes independent normally open (NO) and normally closed (NC) auxiliary contacts. These provide essential signaling capabilities for remote indication of the relay's status (healthy vs. tripped), enabling integration into control logic and alarm systems.
- Temperature Compensation: Incorporates temperature compensation to maintain consistent trip performance across varying ambient temperature conditions, enhancing reliability.
Primary Application
This relay is engineered to function as the protective element in starter combinations. When integrated with an appropriately rated contactor (e.g., an NC1 contactor series), it forms a robust motor starter assembly. Its role is to monitor the flowing to the motor and open the control circuit (via the contactor) if a predetermined overcurrent condition persists long enough to pose a thermal risk to the motor.
Specifications Summary Table
| Feature | Specification | | :--------------- | :-------------------------------------- | | Model | NDR1-38A22 | | Brand | Genuine Nader Liangxin | | Type | Electronic Thermal Overload Relay | | Rated Current| 5.5 Amperes to 8.0 Amperes (Adjustable) | | Rated Voltage| 220V Terminal Type| BRC Flat Terminal | | Auxiliary Contacts | 1 NO + 1 NC | | Mounting | DIN Rail | | Protection Class | Standard Industrial Grade | | Application | Motor Overload Protection |
Reliability by Design
As a genuine Nader Liangxin component, the NDR1-38A22 adheres to stringent manufacturing standards and quality control processes. This commitment results in a device characterized by:
- Consistent Performance: Accurate and repeatable tripping behavior.
- Durability: Robust construction suitable for demanding industrial environments.
- ** Engineered for dependable operation over extended periods.
Appropriate Use
The NDR1-38A22 thermal overload relay is ideally suited for safeguarding motors within the specified current range (e.g., fractional horsepower to small horsepower motors up to approximately 4-5 HP at 220V/3P, depending on specific motor characteristics). It is a fundamental component for safety and reliability in applications requiring controlled motor starting and automated protection against thermal damage.
Ensure compatibility with your specific motor parameters and contactor before installation. Select the genuine Nader Liangxin NDR1-38A22 for reliable, calibrated motor protection.
