Overview
The TDK Lambda LJS-13A-15-D-OV is a regulated switching power supply designed for reliable operation in industrial control, automation, and instrumentation systems. This unit converts AC mains input to a stable, regulated 15V DC output, suitable for powering PLC logic modules, solenoids, indicator lights, and other low-voltage industrial devices. The “-OV” designation indicates integrated overvoltage protection, safeguarding downstream equipment against transient spikes and voltage excursions.
Key Features
- Regulated 15V DC output with overvoltage protection
- Wide AC input range: 105–132V AC (single-phase)
- Compact switching power supply design for space-constrained panels
- Suitable for DIN rail or chassis mounting in industrial cabinets
- Established LJS series proven in manufacturing, food & beverage, and process automation
Technical Specifications
Typical specifications for the LJS-13A-15-D-OV based on datasheet and comparable series units:
- Input Voltage: 105–132V AC, 47–63 Hz
- Output Voltage: 15V DC (regulated)
- Output Current: Approximately 1.0–1.6A (dependent on load and thermal conditions)
- Power Rating: Approximately 15–24W nominal
- Protection: Overvoltage (OV), overcurrent, thermal
- Operating Temperature: 0–50°C (typical industrial range)
- Isolation: Input-to-output isolation (typical for switching supplies)
- Safety Standards: UL/CSA recognized (typical for industrial supplies)
Typical Applications
- PLC and controller auxiliary power (logic modules, communication cards)
- Solenoid valve pilot circuits
- Signal conditioning and sensor excitation
- Indicator lamps and status lights in control panels
- Industrial instrumentation and test equipment
- Emergency lighting and alarm circuits
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix and MicroLogix controllers (auxiliary power input)
- Siemens S7-1200/S7-1500 control systems
- Omron and Mitsubishi PLCs (24V logic with buck-converter modules)
- Generic 15V DC equipment requiring regulated auxiliary power
- DIN rail-mounted industrial control panels
Replaces / Drop-In Replacement For
- TDK Lambda LJS-13A-15-OV (standard variant without D suffix)
- Other LJS series 15V units with identical connector and mounting footprint
- Generic regulated 15V switching supplies with equivalent current rating
Works With
- Industrial control panels and electrical enclosures
- PLC auxiliary and pilot power circuits
- DIN rail mounting systems (verify mounting hardware compatibility)
- Standard terminal blocks and din rail terminal connectors
