Basler Electric 9400200117 Control Power Unit 12/24VDC 20W

The Basler Electric 9400200117 is a compact, reliable control power unit that provides a regulated DC output for powering protective relays, control logic, communication devices, and other auxiliary equipment in substations and industrial plants. It accepts a wide AC or DC input and delivers a stable 12 VDC or 24 VDC output with a continuous power rating of 20 W. The unit is designed for panel mounting and offers high efficiency, low ripple, and comprehensive protection.

Input and Output

The input voltage range is 85‑264 VAC or 100‑370 VDC, making it suitable for global applications. The output is selectable via a jumper or dip switch for either 12 VDC (1.67 A) or 24 VDC (0.83 A). Output voltage regulation is ±1% for load variations. The unit includes LED indicators for input power and output status, and a trimmer for fine adjustment of the output voltage if needed.

Protection Features

The control power unit incorporates over‑voltage protection, over‑current protection, short‑circuit protection, and thermal shutdown. These safeguards protect both the power supply and the connected load from damage. The unit automatically recovers after fault conditions are cleared. An auxiliary alarm output (optional) can signal a loss of output.

Technical Specifications

Input voltage: 85‑264 VAC or 100‑370 VDC, 47‑63 Hz. Output: 12 VDC / 1.67 A or 24 VDC / 0.83 A (20 W max). Efficiency: >85% at full load. Ripple and noise:<50 mV peak‑to‑peak. Operating temperature: –25°C to +70°C. The unit is housed in a metal enclosure with screw terminals for easy wiring.

Applications

This power supply is commonly used in protection relay panels, RTU (Remote Terminal Unit) cabinets, PLC systems, and SCADA equipment. It is ideal for powering Basler Electric relays, as well as third‑party devices requiring a stable DC source. Its small footprint saves valuable panel space.

Installation and Operation

Mount the unit on a DIN rail or directly on the panel using the provided brackets. Connect the AC/DC input and the DC output leads. No configuration is required besides selecting the output voltage. The unit operates silently and is convection‑cooled, eliminating the need for a fan.

Reliability and Quality

Basler Electric designs this power supply for continuous operation in harsh electrical environments. It complies with UL 508, IEC 60950, and CE standards. The unit undergoes rigorous testing for temperature, humidity, and vibration. With a mean time between failures (MTBF) exceeding 100,000 hours, it ensures dependable long‑term performance.

Conclusion

The Basler Electric 9400200117 control power unit is a versatile and robust DC power source for control and protection circuits. Its flexible input, selectable output, and protective features make it an essential accessory for modern power system installations.