Analog timers and electromechanical relays for industrial control systems
Manufacturer: panasonic
# PM4HSD - S - AC Product Series Introduction
## 1. Overview
The PM4HSD - S - AC product series represents a cutting - edge solution in the field of power management and electrical control. Engineered with precision and innovation, this series is designed to meet the diverse and demanding requirements of modern industrial, commercial, and residential applications. Whether it's ensuring stable power supply, protecting electrical equipment, or enabling efficient energy utilization, the PM4HSD - S - AC series stands out as a reliable and high - performance choice.
## 2. Key Features
### 2.1 High - Speed Detection
- **Rapid Fault Response**: The PM4HSD - S - AC series is equipped with advanced high - speed detection technology. It can quickly identify electrical faults such as short - circuits, over - currents, and under - voltages within milliseconds. This rapid response time is crucial in preventing damage to connected equipment and minimizing downtime in critical applications.
- **Precision Sensing**: The sensors in the series are highly accurate, capable of detecting even the slightest deviations from normal electrical parameters. This precision ensures that the system can take appropriate action promptly, whether it's tripping a circuit breaker or sending an alarm signal.
### 2.2 Compatibility with AC Systems
- **Wide Voltage Range**: These products are designed to work seamlessly with a wide range of alternating current (AC) systems. They can handle different voltage levels commonly found in various regions, from low - voltage residential circuits (e.g., 120V or 230V) to medium - voltage industrial applications (e.g., 480V or higher).
- **Frequency Adaptability**: The PM4HSD - S - AC series is also compatible with different AC frequencies, such as 50Hz and 60Hz. This makes it suitable for use in different countries and applications where the power grid frequency may vary.
### 2.3 Safety and Protection
- **Over - current Protection**: In case of excessive current flow, the series provides reliable over - current protection. It can automatically disconnect the circuit to prevent overheating of wires and damage to electrical components. This feature is essential for protecting both the equipment and the overall electrical system from potential fire hazards.
- **Surge Protection**: The products are equipped with surge protection capabilities to safeguard against voltage spikes caused by lightning strikes, power grid fluctuations, or other external factors. Surge protection helps to extend the lifespan of connected devices and ensures their stable operation.
### 2.4 Smart Monitoring and Control
- **Remote Monitoring**: The PM4HSD - S - AC series supports remote monitoring through various communication interfaces, such as Ethernet, Modbus, or Profibus. This allows users to monitor the electrical parameters, status, and performance of the system from a central control room or even via a mobile device.
- **Data Logging and Analysis**: The built - in data logging function records important electrical data over time. Users can analyze this data to identify trends, detect potential issues in advance, and optimize the energy consumption of the system.
## 3. Applications
### 3.1 Industrial Applications
- **Manufacturing Plants**: In manufacturing facilities, the PM4HSD - S - AC series can be used to protect critical machinery and equipment from electrical faults. It ensures the continuous operation of production lines, reducing the risk of costly downtime and production losses.
- **Power Generation and Distribution**: For power plants and electrical substations, these products play a vital role in maintaining the stability and safety of the power grid. They can detect and isolate faults quickly, preventing the spread of electrical disturbances and ensuring reliable power supply to consumers.
### 3.2 Commercial Applications
- **Office Buildings**: In office environments, the series helps to protect sensitive electronic equipment such as computers, servers, and communication systems. It
PM4H-8PIN