Mean Well LRS-1200 Series Enclosed AC/DC Power Supply

Overview

The Mean Well LRS-1200 Series is a 1200W single-output enclosed AC/DC power supply designed with a low-profile 41mm form factor for industrial applications that require compact size, stable output, and efficient power conversion.

As part of the Mean Well product range, the LRS-1200 Series belongs to the AC/DC enclosed switching power supply category and is designed for demanding industrial applications. It supports a wide 180–305Vac input range and is available in 12V, 24V, 36V, and 48V models.

These options make it suitable for industrial automation machinery, industrial control systems, mechanical and electrical equipment, and electronic instruments.

Features

• 1200W single-output enclosed AC/DC power supply
• Wide 180–305Vac input range
• Low-profile 41mm compact design
• Available in 12V, 24V, 36V, and 48V models
• High efficiency up to 94%
• 150% peak power for 5 seconds
• Short circuit, overload, over voltage, and over temperature protection
• Forced air cooling with intelligent fan speed control
• Built-in Remote Control, Remote Sense, and DC OK signal
• Suitable for industrial automation, control systems, and electronic equipment

Need help choosing the right model? Compare the main specifications of LRS-1200-12, LRS-1200-24, LRS-1200-36, and LRS-1200-48 below.

Models in the LRS-1200 Series

This product line includes four single-output models: LRS-1200-12, LRS-1200-24, LRS-1200-36, and LRS-1200-48.

All models share the same compact 41mm low-profile design, 180–305Vac input range, and enclosed power supply architecture.

LRS-1200-12

LRS-1200-12 provides 12V output with 92A rated current and 1104W rated power. It also supports 138A peak current and 1656W peak power for 5 seconds. This model is a suitable option for high-current 12V DC applications that require compact size and strong short-term output capability.

LRS-1200-24

LRS-1200-24 delivers 24V output with 50A rated current and 1200W rated power. It supports 75A peak current and 1800W peak power for 5 seconds. This makes it a strong choice for industrial automation and control systems built around 24V DC architecture.

LRS-1200-36

LRS-1200-36 offers 36V output with 33.3A rated current and 1198.8W rated power. It supports 50A peak current and 1800W peak power for 5 seconds. This model provides a practical solution for equipment that requires stable 36V DC output in industrial environments.

LRS-1200-48

LRS-1200-48 provides 48V output with 25A rated current and 1200W rated power. It supports 37.5A peak current and 1800W peak power for 5 seconds. This model is well suited for 48V DC systems that require reliable high-power performance in a compact enclosed form factor.

Related Mean Well Power Supply Series

If you are evaluating similar enclosed power supply options, the following Mean Well series may also be relevant for comparison:

• LRS-350 Series – Compact enclosed power supply series for lower-power industrial and control applications.
• LRS-600 Series – Mid-power enclosed power supply series suitable for industrial equipment and automation systems.
• RSP-1500 Series – High-power enclosed switching power supply option for industrial systems requiring higher output capacity.

Remote Control, Remote Sense and DC OK

The LRS-1200 series includes built-in Remote Control, Remote Sense, and DC OK signal functions. These features support easier system integration, more accurate output monitoring, and flexible external control.

With these functions, the series is well suited for industrial automation, control systems, and other demanding applications. It is a reliable solution for systems that require high-power output, status feedback, and wiring compensation.

Remote Control

The Remote Control function allows the PSU to be turned ON or OFF by using an external switch and auxiliary power. According to the function manual, the output remains ON when RC+ to RC- is open or kept at 0–0.8Vdc.

The output turns OFF when RC+ to RC- is kept at 3.3–10Vdc. This function is useful for systems that require external control logic or remote power switching.

Remote Sense

Remote Sense helps compensate voltage drop on the load wiring by up to 0.3Vdc. This helps improve output accuracy at the load side in demanding installations.

The function manual also notes that the sense lines should be twisted in pairs. This feature is especially useful when cable distance or wiring resistance may affect output stability.

DC OK Signal

The built-in DC OK signal provides a TTL-level output to indicate PSU output status. The datasheet states that the signal is “High” when the PSU turns on.

Power ON is 3.3–5.6Vdc, and Power OFF is 0–1Vdc between DC_OK and GND. This makes the unit more practical for monitoring, status feedback, and integration with external control systems.

Need installation and wiring details for the LRS-1200 Series? Continue below to review mechanical dimensions, terminal assignment, and control pin information.

Mechanical Dimensions and Installation

The Mean Well LRS-1200 Series features a compact enclosed design with overall dimensions of 225 × 124 × 41mm. It is suitable for installations that require high power output within a low-profile form factor. The mechanical layout includes AC input, DC output, and control terminals for integration into industrial power systems and control cabinets.

Dimensions

The overall mechanical size is 225 × 124 × 41mm, with a compact 41mm low-profile design that helps save installation space in industrial equipment and enclosure-based applications.

Terminal Assignment

The unit includes TB1 for AC input, TB2 and TB3 for DC output, and CN1 for control functions. The AC input terminal provides AC/L, AC/N, and FG connections, while the DC output terminals provide -Vo and +Vo. CN1 is used for Remote Sense, DC OK, and Remote Control signal connections.

Installation Notes

This series is designed for enclosed installation in industrial systems that require reliable AC/DC conversion and practical wiring access. When integrating the power supply, users should review the terminal layout, wiring direction, and mounting space to help ensure proper installation, heat dissipation, and maintenance access.

Need application and compliance information for the LRS-1200 Series? Continue below to explore recommended applications, certifications, and safety standards.

Applications

The LRS-1200 Series is suitable for industrial automation machinery, industrial control systems, mechanical and electrical equipment, and electronic instruments or apparatus that require stable high-power AC/DC conversion.

With its 1200W single-output design, compact low-profile form factor, and built-in control functions, it is well suited for applications where space efficiency, reliable performance, and practical system integration are important.

• Industrial automation machinery
• Industrial control systems
• Mechanical and electrical equipment
• Electronic instruments and apparatus

Need certification and compliance details for your project? Continue below to review the safety standards, EMC information, and related approval data for this series.

Certifications and Safety

This series is designed to meet a broad range of international safety and EMC requirements for industrial and electronic equipment applications.

According to the official datasheet, the series includes major safety approvals and related compliance standards for global project use.

• CB: IEC62368-1, IEC61558-1/-2-16
• UL: UL62368-1
• DEKRA: BS EN/EN62368-1, BS EN/EN61558-1/-2-16
• RCM: AS/NZS 62368-1, AS/NZS 61558-1/-2-16
• CQC: GB 4943.1
• BSMI: CNS15598-1
• EAC: TPTC 004
• KC/BIS: available by request

The datasheet also lists EMC-related standards such as BS EN/EN55035, BS EN/EN61000-6-2, BS EN/EN55032 (CISPR32), BS EN/EN61000-3-2, and BS EN/EN61000-3-3.

In addition, the series is specified for IEC/EN 61558-1/-2-16 with OVC III and altitude up to 2000m. It is also specified for IEC/EN/UL 62368-1 with OVC II and altitude up to 5000m.

Need more product details before sending an inquiry? Continue below to review common questions about the LRS-1200 Series.