Views: 0 Author: Site Editor Publish Time: 2026-01-05 Origin: Site
RM series intelligent high-frequency switching power supply is specifically designed for power systems. The module employs the world-leading "resonant voltage-type dual-loop control resonant switching power supply technology," offering advantages such as natural cooling, compact size, lightweight design, high efficiency, and exceptional reliability. The product line includes two major series (220V and 110V) with over a dozen variants, equipped with a standard RS-485 interface for seamless integration with automation systems. It is suitable for various substations, power plants, and hydro-power stations.
Features:
3 phase AC input ;
High efficiency, above 93% reduces power consumption for lower operating costs;
Remote monitoring through RS485;
Microprocessor based;
Alarm and status indication LED;
Power factor ≥0.94;
Built in DC output isolation diode ;
Hot pluggable facilitates future extensions;
Max parallel modules up to 16pcs in one system;
Light weight and compact;
Natural cooling;
Multiple protection:Over current, over voltage,short circuit, overheat protection etc.

Model | RM22010NC-D | RM11020NC-D | RM22020NC-D | RM11040NC-D | |
Output (A) | 10 | 20 | 20 | 40 | |
Power (KW) | 3 | 6 | |||
Weight (kg) | ≤9 | ≤16 | |||
Cooling-down method | natural cooling | ||||
Internal radiator temperature rise | ≤50℃ | ||||
Input voltage range (VAC) | least value | 304 | 323 | ||
representative value | 380 | 380 | |||
crest value | 456 | 437 | |||
Adjustable range (VDC) output | least value | 176 | 88 | 176 | 88 |
representative value | 220 | 110 | 220 | 110 | |
crest value | 300 | 150 | 300 | 150 | |
Regulation accuracy | ±0.5% | ||||
Steady flow accuracy | ±1% | ||||
Input power factor | ≥0.93 | ||||
Charger efficiency | ≥93% | ||||
Maximum audible noise (dB) | 55 | ||||
Storage temperature (℃) | least value | -40 | |||
representative value | 25 | ||||
crest value | 60 | ||||
Working environment temperature (℃) | least value | -10 | |||
representative value | 25 | ||||
crest value | 40 | ||||
Unbalanced flow rate | ≤±3% | ||||
Delay (seconds) | 3~8 | ||||
Ripple factor | ≤1% | ||||
Grade of load | Continuous operation at rated output current of Level Ⅰ (100%) | ||||
Automatic rate limiting | When the output current exceeds the set current limit, the system outputs a constant current without increasing the current. | ||||
Overvoltage protection | The output will automatically stop if the voltage exceeds 320±16VDC (160±8VDC) to prevent equipment damage. | ||||
Output short-circuit protection characteristics | The module automatically protects itself against damage during output short circuits and resumes operation after fault resolution. | ||||
Note: The voltage regulation accuracy excludes the effect of the built-in isolation diode. | |||||