LM75-20B12
Mornsun LM75-20B12 AC-DC enclosed switching supply, 75 W, 85-264 VAC input, adjustable 12 V output with protection.
The LM75-20B12 is a Mornsun LM series AC-DC enclosed switching power supply rated at 75 W with a universal 85-264 VAC input (or 120-370 VDC) and a regulated 12 V output, in a compact enclosed chassis format. The enclosed supply is a standalone unit for benchtop, panel or cabinet use, with an adjustable output voltage, low ripple and noise and protection for short circuit, over-current and over-voltage. Reinforced isolation separates the primary and secondary for safety, and the supply meets common industrial safety and EMC standards. The LM series is a cost-effective industrial range with good efficiency, a wide operating temperature range and a compact footprint, and it accepts AC or DC input on the same terminal. Typical applications include industrial control cabinets, machinery, instrumentation, smart home and communication equipment that need a reliable standalone supply. The output voltage is adjustable, so the same unit can serve 12 V loads with margin. Every module BeiLuo ships is factory-traceable and includes an import declaration, a certificate of origin and a RoHS compliance file. Our FAE team helps you choose the model, plan the mounting and cooling and size the front-end protection.
FAE Professional Review
The LM75-20B12 is a practical 75 W enclosed supply for an industrial cabinet where a standalone 12 V rail is needed. The adjustable output and the integrated protection make it easy to use, and the enclosed format removes the need for a separate enclosure. Mount it with a good thermal path and provide airflow, and confirm the inrush and fuse for your mains.
| Parameter | Value |
|---|---|
| Power | 75 W |
| AC Input | 85-264 VAC |
| Output Voltage | 12 V |
| Isolation | 3000 VAC |
| Mounting | Enclosed chassis |
Application Circuits
Industrial control cabinets
Reference circuits and application schematics for Industrial control cabinets are available from our FAE team.
Machinery and instrumentation
Reference circuits and application schematics for Machinery and instrumentation are available from our FAE team.
Communication and smart home
Reference circuits and application schematics for Communication and smart home are available from our FAE team.
Need a reference schematic or design review? Our FAE engineers can share verified circuits and layout guidance for this part.
Related Documents
Alternative Part Numbers
| Model | Package | Note | Action |
|---|---|---|---|
| LIF480-10B24R2 | Higher-power DIN-rail supply for a control cabinet | View |
Complementary Part Numbers
| Model | Package | Note | Action |
|---|---|---|---|
| URB2405YMD-6WR3 | DIP | Isolated DC-DC module for a downstream rail | View |
| LS05-13B05R3 | Compact on-board AC-DC module for an auxiliary rail | View |
Recommended Complementary Products
Frequently Asked Questions
What projects suit the LM75-20B12?
It suits industrial cabinets and machinery that need a standalone 75 W, 12 V rail, and instrumentation or communication equipment with a similar requirement. The enclosed format removes the need for a separate enclosure.
Mount it with a good thermal path and airflow.
Can I adjust the output voltage?
Yes. The output voltage is adjustable within the range in the datasheet, so you can compensate for distribution drop or match a specific load. Keep the total power within the rating at the adjusted voltage.
Our FAE team can confirm the adjustment.
Is the supply genuine and documented?
BeiLuo supplies factory-traceable LM75-20B12 supplies with an import declaration, certificate of origin and RoHS file on every order. Stock is normally available.
Request a sample to validate the supply before production.