18W 12VDC Switching Power Supply State Grid AC DC Open Frame Switching Power Supply
Brand Name:MORNSUN
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Model Number:LO20-26D1212-04-C
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Delivery Time:Negotiated
Payment Terms:T/T
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Shenzhen China
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5th Floor, Building B10, Fuqiao 2nd Industrial Zone, Fuhai Street, Bao'an District, Shenzhen
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Product Details
18W AC DC open frame switching power supply 12VDC output
Descriptions
LO20-26D1212-04-C State Grid TTU dedicated switching power supply.The AC-DC converter is a three-phase four-wire power dedicated Switching power supply designed for intelligent distribution terminal,intelligent power distribution detection terminal,etc.According to the latest national grid company enterprise standard and operates over a very wide input voltage range:165-480VAC or 230-680VDC.It meets the three-phase three wire or four-wire rated voltage.So it is a design solution for electric-meter application sourced from a three-phase AC supply with the requirement of high isolation voltage and rigorous EMC,for extremely harsh EMC environment,we recommend using the application circuit show in Design Reference of this datasheet.
Features
- l Designed for intelligent distribution and transformer terminals, the main technical indicators meet the national network standards
- l Ultra wide input voltage range: 165-480VAC/230-680VDC
- l High I/O isolation test voltage up to 4000VAC
- l EFT, Surge: ±4KV Perf. Criteria B
- l Output short circuit, over-current, over-voltage protections
- l High efficiency, high reliability
- l Low output ripple & noise, low standby power consumption
- l Input anti-double rated voltage, normal over-voltage output
Specifications
| Selection Guide | |||||
Part No. | Output Power | Nominal Output Voltage and Current(Vo/Io) | Efficiency at 230VAC (%) Typ. | Capacitive Load (µF) Max. | |
| Vo1/Io1 | Vo2/Io2 | ||||
| LO20-26D1212-04-C | 18W | 12VDC/1500mA | No Pin* | 80 | 4000 |
| Note: * If the second road is empty, you can customize the second 12V/400mA on this model. | |||||
| Input Specifications | |||||
| Item | Operating Conditions | Min. | Typ. | Max. | Unit |
Input Voltage Range | AC input | 165 | -- | 480 | VAC |
| DC input | 230 | -- | 680 | VDC | |
| Input Frequency | 47 | -- | 63 | Hz | |
Input Current | 165VAC | -- | -- | 0.7 | A |
| 230VAC | -- | -- | 0.4 | ||
| Inrush Current | 230VAC | -- | 40 | -- | |
| Input Apparent Power | 220VAC input, output power Po=10W | -- | -- | 18 | VA |
| Power Factor | 220VAC input, full load | PF≥0.8 | |||
| Input Over-voltage Protection | Input double 380/220 VAC (three-phase four-wire), testing time 1S, interval 10S | Normal Output | |||
Recommended External Input Fuse | Three-phase four-wire input | 3.15A/250V slow-blow required | |||
| Any phase input | 3.15A/500V slow-blow required | ||||
| Hot Plug | Unavailable | ||||
| Output Specifications | |||||
| Item | Operating Conditions | Min. | Typ. | Max. | Unit |
| Output Voltage Accuracy | -- | ±2 | -- | % | |
| Line Regulation | Full load | -- | ±0.5 | -- | |
| Load Regulation | 0%-100% load | -- | ±1 | -- | |
| Ripple & Noise* | 20MHz bandwidth (peak-to-peak value) | -- | -- | 100 | mV |
| Temperature Coefficient | -- | ±0.02 | -- | %/℃ | |
| Stand-by Power Consumption | 230VAC | -- | -- | 0.5 | W |
| Mechanical Specifications | |
| Dimension | 76.20 x 50.80 x 30.00 mm |
| Weight | 65g (Typ.) |
| Cooling Method | Free air convection |
Dimensions and Recommended Layout
18W 12VDC Switching Power Supply State Grid AC DC Open Frame Switching Power Supply
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