MEAN WELL RPSG-160-12 is a 5 × 3-inch open-frame medical AC/DC power supply with a 12 V main output. The main-output current is 9.1 A with natural convection and 12.9 A with the specified 20.5 CFM airflow. G version with 5 V standby output and PS-ON control. It is intended for Class I equipment with protective grounding; BF applications require appropriate system consideration.
Product Datasheet
Download MEAN WELL RPS-160 Datasheet (PDF)
The RPS-160 section is on PDF pages 37, 38, 39, 40. Refer to the complete mechanical drawings and notes when planning installation.
Model and Application
| Complete model |
RPSG-160-12 |
| Configuration |
G version with 5 V standby output and PS-ON control. |
| Board format |
127 × 76.2 mm (5 × 3 inches); open-frame PCB construction. |
| Intended applications |
Oral irrigators, hemodialysis equipment, medical monitors and sleep-apnea devices and pump equipment. |
Medical component approvals and isolation ratings do not certify the completed device. The equipment design must satisfy the applicable patient-protection, grounding, leakage-current and EMC requirements.
Output Ratings and Cooling Conditions
| Nominal main output |
12 V. |
| Convection main-output current |
0–9.1 A. |
| Forced-air main-output current |
0–12.9 A with at least 20.5 CFM as shown in the installation drawing. |
| Main-output power at nominal voltage |
109.2 W with convection and 154.8 W with 20.5 CFM, calculated from nominal voltage × the respective main-output current limit. |
| Catalogue family combined-power entries |
112.2 W with convection; 159.8 W with 20.5 CFM. The table footnotes include 5 V standby at 0.6 A and 0.8 A respectively. |
| Voltage adjustment |
10.8–13.2 V for the main output. |
| Ripple and noise, maximum |
80 mVp-p. |
| Voltage tolerance |
±3.0%; includes set-up tolerance, line regulation and load regulation. |
| Line regulation |
±0.5%. |
| Load regulation |
±1.0%. |
| Efficiency, typical |
87%. |
Use each rail’s voltage and current limit together with the cooling-mode total-power limit. The combined-power table is not a main-output-only rating and does not override any individual rail current limit. The standby rail is included in the total-power budget.
Unless otherwise stated, parameters are measured at 230 VAC, rated load and 25°C ambient. Ripple/noise uses 20 MHz bandwidth and a 12-inch twisted pair terminated by parallel 0.1 µF and 47 µF capacitors.
Input, Timing and Leakage
| Input range |
90–264 VAC or 127–370 VDC; observe the low-input derating curve. |
| Input frequency |
47–63 Hz. |
| AC current, typical |
2 A at 115 VAC; 1.1 A at 230 VAC. |
| Cold-start inrush, typical |
35 A at 115 VAC; 70 A at 230 VAC. |
| Set-up and rise time |
1800 ms set-up at 230 VAC; 3500 ms at 115 VAC; 30 ms rise at either input, at full load. |
| Hold-up time, typical |
25 ms at 230 VAC; 20 ms at 115 VAC, at full load. |
| Earth leakage current |
Less than 200 µA at 264 VAC. |
| Touch current |
Less than 100 µA at 264 VAC, measured from primary input to DC output. |
| Power-factor correction |
Built-in PFC; typical PF >0.93 at 230 VAC and >0.98 at 115 VAC, full load. |
| Switching-frequency reference |
70 kHz for the 12–48 V models. |
Protection
| Short circuit and overload |
105–135% of rated output power; hiccup mode automatically recovers after the fault is removed. |
| Overvoltage threshold |
13.8–16.2 V. |
| Overvoltage response |
Output shuts down; re-power to recover. |
| Overtemperature response |
TSW1 shuts down the output and automatically recovers after temperature falls. TSW2 shuts down the output and requires re-powering to recover. |
Protection trip thresholds do not increase the usable output rating.
Control and Monitoring
| Power Good / Power Fail timing |
10 ms < PG < 500 ms; PF >1 ms. CN3 pin 1 is labelled PG and pin 2 GND; the pages do not assign a separate PF pin or provide an additional signal-current rating. |
| Remote sense |
Available for this 12 V model: CN3 pin 3 −S and pin 4 +S. |
| Status indication |
An LED is shown on the mechanical drawing. |
| 5 V standby output |
5 V at up to 0.6 A with convection or 0.8 A with 20.5 CFM; tolerance ±2%, ripple/noise 50 mVp-p maximum. |
| PS-ON control |
G model only: high (2–5 V) turns the main output on; low (0–0.5 V) turns it off. The interface sketch marks 5 mA maximum. |
| Standby and control connector |
CN901 pin 1 PS/ON; pins 2 and 4 GND; pin 3 5VSB. |
| Low-power condition |
Input consumption below 0.5 W is specified using PS-ON control on the G model; it is not a blanket operating no-load figure for all versions. |
Temperature, Input Derating and Environment
| Working temperature |
−20 to +70°C with the applicable cooling and load restrictions. |
| Horizontal-mounting temperature curve |
Natural convection: 100% of the convection rating through 40°C, falling to 40% at 60°C. With the specified fan airflow: 100% of the forced-air rating through 50°C, falling to 40% at 70°C. The no-fan curve ends at 60°C; do not extend it to 70°C. |
| Input-voltage curve |
At 60 Hz, the graph permits 80% load at 90 VAC, rising to 100% at 100 VAC and remaining at 100% through 264 VAC. |
| Working humidity |
20–90% RH, non-condensing. |
| Storage |
−40 to +85°C; 10–95% RH, non-condensing. |
| Temperature coefficient |
±0.03%/°C over 0–50°C. |
| Vibration |
10–500 Hz, 2 G, 10 minutes per cycle; 60 minutes each along X, Y and Z. |
| Operating altitude |
Up to 3,000 m. Above 2,000 m, reduce permitted ambient temperature by 3.5°C per additional 1,000 m for fanless operation, or 5°C per additional 1,000 m with a fan. |
Combine temperature, input-voltage and airflow restrictions. Do not interpret the maximum ambient temperature as a full-power rating.
Installation and Mechanical Details
| Dimensions, L × W × H |
127 × 76.2 × 34.6 mm. |
| Mounting holes |
Four holes, diameter 3.5 mm; centre spacing 117 × 66.2 mm. |
| Drawing references |
Edge-to-hole offsets are 5 mm and 5 mm as drawn. General dimensional tolerance ±1 mm; projection below the board 3 mm maximum. |
| Forced-air arrangement |
At least 20.5 CFM; the drawing shows a fan 5 cm from the board edge, centred at the 63.5 mm longitudinal position, with airflow across the board in the indicated direction. |
| Safety ground and chassis |
M1 is the safety-ground point. Secure electrical connections between M1, M2 and chassis ground for the specified installation and EMC performance. |
| Heat sinks |
HS1, HS2 and HS3 must not be shorted together. |
Follow the complete mechanical drawing and manufacturer installation manual. The catalogue does not specify mounting-screw torque, supplied mounting hardware or a complete fan ordering code. The indicated airflow arrangement is required for the corresponding higher-load rating.
Compatible Connectors and Mating Parts
| AC input CN1 |
JST B3P-VH or equivalent; pin 1 AC/N, pin 2 absent, pin 3 AC/L. Mating housing is printed as JST VHR; terminal JST SVH-21T-P1.1 or equivalent. |
| DC output CN2 |
JST B8P-VH or equivalent; pins 1–4 +V, pins 5–8 −V. Mating housing is printed as JST VHR; terminal JST SVH-21T-P1.1 or equivalent. |
| Power-Good / sense CN3 |
JST B4B-XH or equivalent; pin 1 PG, pin 2 GND, pin 3 −S, pin 4 +S. Mating housing is printed as JST XHP; terminal JST SXH-001T-P0.6 or equivalent. Sense is applicable to this model. |
| Standby CN901 |
The catalogue prints JST B-XH or equivalent, mating housing JST XHP, terminal JST SXH-001T. Pin 1 PS/ON; pins 2 and 4 GND; pin 3 5VSB. |
The complete printed connector and terminal references above identify the documented interface parts. VHR and XHP are abbreviated housing-family references; B-XH and SXH-001T for CN901 are also incomplete ordering references. Confirm the full housing/contact suffix and circuit count with the connector supplier before ordering. No unprinted suffix or inclusion in the power-supply package is implied.
Safety, Isolation and EMC
| Listed medical approvals |
IEC60601-1:2005+A1+A2; TUV BS EN/EN60601-1:2006+A1+A12+A2; ANSI/AAMI ES60601-1:2005+A2; CAN/CSA C22.2 No.60601-1:2014+A2; EAC TP TC004. |
| Other design reference |
BS EN/EN60335-1 is listed as a design reference by request, not an unconditional standard configuration approval. |
| Patient-protection isolation |
Primary to secondary: 2 × MOPP; primary to earth: 1 × MOPP; secondary to earth: 1 × MOPP. |
| System configuration |
Class I with FG. Suitable for BF applications with appropriate system consideration. |
| Withstand voltage |
Input to output 4 kVAC; input to FG 2 kVAC; output to FG 1.5 kVAC. |
| Insulation resistance |
Input/output, input/FG and output/FG: 100 MΩ at 500 VDC, 25°C and 70% RH. |
| Emissions |
BS EN/EN55011 (CISPR11), conducted and radiated Class B for Class I configuration. Harmonic current: BS EN/EN61000-3-2 Class A; flicker: BS EN/EN61000-3-3. |
| Immunity framework |
BS EN/EN55035 and BS EN/EN60601-1-2. |
| ESD |
BS EN/EN61000-4-2: Level 4, 15 kV air and 8 kV contact. |
| RF immunity |
BS EN/EN61000-4-3: Level 3, 10 V/m at 80 MHz–2.7 GHz; Table 9, 9–28 V/m at 385 MHz–5.78 GHz. |
| EFT / burst and surge |
BS EN/EN61000-4-4: Level 3, 2 kV. BS EN/EN61000-4-5: Level 4, 4 kV line-to-FG and 2 kV line-to-line. |
| Conducted and magnetic immunity |
BS EN/EN61000-4-6: Level 3, 10 V. BS EN/EN61000-4-8: Level 4, 30 A/m. |
| Voltage dips and interruptions |
BS EN/EN61000-4-11: 100% dip for 1 period, 30% dip for 25 periods, and 100% interruption for 250 periods. |
EMC testing used a 360 × 360 mm metal plate, 1 mm thick. This supply is an equipment component; EMC compliance must be confirmed again in the finished equipment.
Weight, Reliability and Catalogue Reference
| Single-unit catalogue weight |
330 g, from the explicit 0.33 kg per-unit PACKING entry. This is a catalogue reference, not a measured net or shipping weight. |
| Packing reference |
36 pieces / 12.9 kg / 0.96 CUFT. |
| MTBF estimates |
2082.3 thousand hours minimum, Telcordia SR-332 (Bellcore); 234.5 thousand hours minimum, MIL-HDBK-217F at 25°C. |
| Manufacturer warranty |
3 years, subject to applicable manufacturer terms. |
| Catalogue revision |
RPS-160-SPEC 2026-02-28; combined PDF pages 37–40. |
MTBF is a statistical reliability estimate under the stated methods, not a guaranteed service life.
