APF195 204-195-000-021 24 VDC Power Supply for Industrial Monitoring Systems

The APF195 204-195-000-021 is a compact power supply module developed for industrial measurement and machinery monitoring systems. It is designed to power compatible external devices, including signal isolation units used to connect measurement equipment with monitoring systems.

In a typical monitoring setup, sensors and signal conditioners collect information about machine operation. Signal isolation units help separate electrical circuits and support reliable signal transfer between connected equipment. The APF195 supplies the required power to these units, helping the monitoring system operate as intended.

The module is designed for installation inside an industrial control cabinet. Its DIN-rail mounting makes it suitable for both new system builds and maintenance of existing panels. Rather than serving as a general-purpose high-power supply, it is intended for applications with specific, relatively low power requirements.

Industrial monitoring cabinets often contain several devices with different power requirements. Using a dedicated supply for compatible isolation units helps keep the power arrangement clear and makes it easier for engineers to trace connections during maintenance.

This is especially useful when troubleshooting a monitoring channel. If an isolation unit stops working, technicians can check its power supply and wiring separately from the sensor and monitoring card, helping narrow down the possible cause of the fault.

The DIN-rail design allows the module to fit into a standard cabinet layout alongside other control components. This can simplify installation and replacement without requiring major changes to the panel structure.

For existing systems, using the correct replacement model also helps maintain the original wiring arrangement and equipment compatibility. Engineers can focus on checking the connected devices and power requirements instead of redesigning the entire power circuit.

1. Check the load before selecting the supply. Calculate the total power demand of the connected equipment and allow for start-up current. A device may draw more current briefly when it is switched on than it needs during normal operation. If the demand exceeds the module's capacity, the output may enter current-limit protection.
2. Follow the recommended configuration for GSI units. For the documented application, one APF195 is intended to supply one GSI127 unit or two GSI124/GSI122 units using the specified output arrangement. Two APF195 supplies operating in parallel are required to power two GSI127 units because of their start-up current demand. Confirm the exact device model and wiring instructions before installation.
3. Verify input wiring and external protection. Check input polarity, terminal connections and the required external fuse before switching on the supply. The module's internal protection does not replace the need for correct circuit protection, and its output over-voltage protection is not designed to withstand external over-voltage applied to the outputs.
4. Check the full installation environment. Confirm that the cabinet temperature, mounting space and wiring access meet the product requirements. Keep wiring secure and arranged so that maintenance staff can identify the input and output connections without disturbing nearby circuits.

• Rotating machinery online protection systems
• Vibration and shaft-position monitoring
• Steam turbine and compressor safety supervision
• Large fan, generator and high-speed pump condition monitoring
• Oil and gas facilities
• Chemical processing plants
• Power generation facilities
• Metal processing and coal-chemical plants

• Export to 40+ countries
• Complete after-sales service
• Stable supply chain ensuring continuous availability
• COO, COC and CQ certification support
• Rapid quotation response

• IOCN 200-566-000-112
• IOC4T 200-560-000-113
• IOC4T 200-560-000-111
• RPS6U 200-582-200-013
• CPUM 200-595-045-114
• 3500/32M 149986-02
• IS200ESELH3AAA
• IS200EPCTG1AAA
• IS200EXHSG3AEC
• IS220PSVOH1A

• Professional installation required for optimal performance and safety
• Ensure proper mounting and adequate ventilation
• Comply with all applicable electrical safety standards