Product Overview
Based on ATST Electric’s core concept of “Precise Control, Safe and Reliable”, ND-5C 3PPR Other Series provides a practical protection solution for three-phase electrical systems.
In industrial and commercial electrical systems, phase failure, unstable phase conditions or incorrect power supply status may cause motor overheating, reverse operation, equipment shutdown or production interruption. ND-5C 3PPR monitors three-phase power conditions and provides a protection response when abnormal phase conditions occur.
The product is listed in the catalog as a Phase Failure Relay with a voltage range of 150–415V and rated frequency of 50Hz–60Hz. Its low-power contact load and 0–30s protection delay make it suitable for electrical protection circuits, motor control panels and industrial automation systems.
As a compact three-phase protection relay, ND-5C 3PPR helps improve equipment safety, reduce fault risks and support stable operation in power distribution and control applications.
Main Features
1. Phase failure protection: Detects abnormal phase conditions and helps protect three-phase electrical equipment.
2. Three-phase power monitoring: Suitable for monitoring three-phase power supply status in electrical control systems.
3. Wide voltage range: Catalog technical data shows 150–415V voltage range for flexible electrical system compatibility.
4. 50Hz–60Hz frequency support: Suitable for common industrial and commercial power supply environments.
5. Adjustable protection delay: Supports 0–30s protection delay for better coordination with system operation requirements.
6. Low-power contact load: Designed for low-power control circuit applications.
7. Motor protection support: Helps reduce risks such as overheating, abnormal operation and equipment failure caused by phase faults.
8. Compact installation design: Suitable for installation in control panels, distribution cabinets and automation systems.
Application Scenarios
1. Three-phase motor protection: Used to protect motors from phase failure and abnormal phase conditions.
2. Pump control systems: Suitable for water pumps, circulation pumps, booster pumps and industrial pumping equipment.
3. Industrial automation panels: Applied in automation cabinets, machine control panels and process control systems.
4. Power distribution systems: Used in low-voltage distribution cabinets and electrical protection circuits.
5. HVAC equipment protection: Suitable for fans, compressors and cooling equipment using three-phase power supply.
6. Manufacturing equipment: Applied in production lines, conveyors, machine tools and processing equipment.
7. Building electrical systems: Used in commercial buildings, factories and facility control rooms requiring three-phase power protection.
Technical Date
| Volt | 150-415V |
| Frequency | 50Hz-60Hz |
| Contact Load | Low Power |
| Protection delay | 0-30s |
Dimensions
