MEAN WELL GSM36E09-P1J is a Class II medical wall-mounted power adapter with fixed two-pin European mains plug, supplying 9 VDC at 4 A with a 36 W rated maximum output. Its center-positive P1J plug, 2 × MOPP isolation and BF-rated design support the stated medical applications. Apply the input and ambient-temperature derating.
Product Datasheet
Download MEAN WELL GSM36E Datasheet (PDF)
The GSM36E section is on PDF pages 59, 60, 61, 62, 63. Refer to the complete mechanical drawings and notes when planning installation.
Model and Rated Output
| Complete model |
GSM36E09-P1J. |
| Product type |
Single-output Class II medical wall-mounted AC/DC power adapter. |
| Nominal output |
9 VDC. |
| Rated output current |
4 A. |
| Current range |
0–4 A. |
| Rated output power, maximum |
36 W; apply the current, voltage and derating limits together. |
| Ripple and noise, maximum |
80 mVp-p. |
| Voltage tolerance |
±5%. |
| Line regulation |
±1%. |
| Load regulation |
±5%. |
| Efficiency, typical |
84%. |
| Model code |
GSM36E identifies the series and AC connection; 09 identifies 9 V; P1J is the standard center-positive tuning-fork DC plug. |
Select the complete model and match the equipment voltage, current and polarity. The nominal series wattage is not the output rating of every model.
Input, Timing and Efficiency
| AC input |
80–264 VAC, 47–63 Hz. |
| DC input |
113–370 VDC. |
| AC connection |
Fixed two-pin European mains plug. |
| AC current, typical |
0.9 A at 115 VAC; 0.45 A at 230 VAC. |
| Cold-start inrush, typical |
30 A at 115 VAC; 55 A at 230 VAC. |
| Set-up / rise time, full load |
500 / 30 ms at 230 VAC; 1000 / 30 ms at 115 VAC. |
| Hold-up time, full load |
Typical 16 ms at 230 VAC and 10 ms at 115 VAC. |
| No-load consumption |
<0.1 W. |
| Energy framework |
Energy-efficiency Level V. EU ErP and CoC Version 5 are listed, with the 5–9 V Level V exception. |
The two-pole mains plug is integral to the adapter. Select the US or European plug configuration for the intended socket.
Medical Isolation and Protection
| Medical design |
2 × MOPP primary-to-secondary isolation; BF-rated design and the listed home-healthcare standards. |
| Touch current |
<50 µA at 264 VAC. |
| Electrical class |
Class II; no protective-earth connection. |
| Input/output withstand |
4 kVAC. |
| Insulation resistance |
100 MΩ at 500 VDC, 25°C and 70% RH, input-to-output. |
| Overload |
105–170% of rated output power; hiccup mode with automatic recovery after the fault is removed. |
| Overvoltage |
9.45–13 V; output shutdown, re-power on to recover. |
| Short circuit |
Short-circuit protection is listed. |
The adapter supports the stated medical application class; safety and EMC of the complete medical equipment still require assessment with its actual load, wiring and installation.
Environment and Derating
| Operating temperature |
−25 to +60°C; apply derating. |
| Temperature/load curve |
Horizontal mounting: 100% load from −25°C to 40°C, then reduce to 80% at 60°C. |
| Low-input load curve |
80% at 80 VAC, reaching 100% at 100 VAC and remaining at 100% to 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 0–40°C. |
| Vibration |
10–500 Hz, 2 G; 10 minutes per cycle, 60 minutes along each of X, Y and Z. |
Follow both input-voltage and ambient-temperature limits. The upper operating temperature is a derated endpoint, not a full-power ambient rating. Refer to the applicable curves on PDF page 61.
Mechanical Details and Cable
| Body dimensions, L × W × H |
79 × 54 × 33 mm; tolerance ±1 mm. |
| Enclosure |
Fully enclosed 94V-0 flame-retardant plastic. |
| DC cable |
UL1185, 16 AWG; 1200 mm, ±50 mm. |
| Catalogue single-unit weight |
230 g, from the explicit PACKING per-unit value; a catalogue packing reference, not a measured net or shipping weight. |
| Carton packing |
60 pieces / 14.8 kg. |
| Power indication |
Power-on LED. |
| Ferrite-to-plug segment |
70 ±10 mm, as shown in the mechanical drawing. |
| Mains-pin projection |
The drawing marks 38 mm beyond the body. |
Body dimensions exclude the attached DC cable and plug and the projecting mains pins. Allow room for the cable exit and connector; follow PDF page 61.
Standard P1J Output Connection
| Connector |
Straight tuning-fork barrel plug P1J: 5.5 mm outside diameter, 2.1 mm inside diameter, 11 ±0.5 mm insertion length. |
| Polarity |
C+: center/inside positive; outside negative. |
Match the mating socket dimensions, insertion depth, polarity and voltage before connection. A mechanically fitting plug does not make different output models interchangeable.
Optional DC Plugs and Accessories
| Tuning-fork alternatives |
P1I: 5.5 / 2.1 / 9.5; P1L: 5.5 / 2.5 / 9.5; P1M: 5.5 / 2.5 / 11; P1IR: 5.5 / 2.1 / 9.5; P1JR: 5.5 / 2.1 / 11; P1LR: 5.5 / 2.5 / 9.5; P1MR: 5.5 / 2.5 / 11 mm (outside diameter / inside diameter / length). |
| Barrel alternatives |
P2I: 5.5 / 2.1 / 9.5; P2J: 5.5 / 2.1 / 11; P2L: 5.5 / 2.5 / 9.5; P2M: 5.5 / 2.5 / 11; P2IR: 5.5 / 2.1 / 9.5; P2JR: 5.5 / 2.1 / 11; P2LR: 5.5 / 2.5 / 9.5; P2MR: 5.5 / 2.5 / 11 mm (outside diameter / inside diameter / length). |
| Locking alternatives |
P2S (S761K): 5.53 / 2.03 / 12.06; P2K (761K): 5.53 / 2.54 / 12.06; P2C (S760K): 5.53 / 2.03 / 9.52; P2D (760K): 5.53 / 2.54 / 9.52 mm (outside diameter / inside diameter / length). SWITCHCRAFT original or equivalent. |
| Minimum-pin alternatives |
P3A: 2.35 / 0.7 / 11; P3B: 4.0 / 1.7 / 11; P3C: 4.75 / 1.7 / 11 mm (outside diameter / inside diameter / length). EIAJ equivalent. |
| Center-pin alternatives |
P4A: 5.5 / 3.4 / 11 mm, center pin 1.0 mm; P4B: 6.5 / 4.4 / 11 mm, center pin 1.4 mm; P4C: 7.4 / 5.1 / 11 mm, center pin 0.6 mm. EIAJ equivalent. |
| R6B |
Locking three-pin male Mini DIN, KYCON KPPX-3P equivalent: pins 1 and 3 +Vo, pin 2 −Vo. |
| R7B |
Locking four-pin male Mini DIN, KYCON KPPX-4P equivalent: pins 1 and 4 +Vo, pins 2 and 3 −Vo. |
| R7BF |
Locking four-pin female Mini DIN, KYCON KPJX-CM-4S equivalent: pins 1 and 4 +Vo, pins 2 and 3 −Vo. |
| R1B |
Male five-pin DIN: pins 1, 2 and 4 −Vo; pins 3 and 5 +Vo. |
All optional plug dimensions are in mm. Codes ending in R in the P1/P2 lists indicate the illustrated right-angle version; the other P1/P2 barrel forms are straight. Confirm the complete cable assembly, mating side and current capability when ordering. No mating socket or optional cable is stated as included.
Factory DC-plug customization is subject to a minimum order quantity. The listed quick-adapter accessories are sold separately without a minimum order quantity. The tuning-fork alternatives, P4A/P4B/P4C, R6B and R7B and R1B have 7.5 A maximum quick-adapter ratings; P3A/P3B/P3C quick adapters are limited to 5 A. Barrel and locking alternatives, R7BF have no quick-adapter accessory listed.
Keep the load within both this model’s 4 A output rating and the selected accessory’s current rating.
Stripped and tinned leads are available by request: lead 1 red is +Vo and lead 2 black is −Vo; colours are reference only and must be verified on the actual assembly. The standard drawing marks L = 25 mm and L1 = 5 mm. Both lengths can be specified by request; no complete separate ordering code is printed for this lead option.
Safety and EMC
| Listed safety standards |
IEC60601-1:2005+A1+A2 and IEC60601-1-11:2015+A1; TUV BS EN/EN60601-1:2006+A1+A12+A2 and BS EN/EN60601-1-11:2015+A1; EAC TP TC 004. |
| Conducted / radiated emissions |
EN55011 (CISPR11), Class B. |
| Harmonic current / flicker |
EN61000-3-2, Class A; EN61000-3-3. |
| Immunity framework |
EN60601-1-2 and EN61204-3. |
| ESD, EN61000-4-2 |
Level 4: 15 kV air and 8 kV contact. |
| Radiated RF, EN61000-4-3 |
Level 3: 10 V/m, 80 MHz–2.7 GHz; Table 9 also lists 9–28 V/m over 385 MHz–5.78 GHz. |
| EFT, EN61000-4-4 |
Level 3, 2 kV. |
| Surge, EN61000-4-5 |
Level 3, 1 kV line-to-line. |
| Conducted RF, EN61000-4-6 |
Level 3, 10 V. |
| Magnetic field, EN61000-4-8 |
Level 4, 30 A/m. |
| Voltage dips / interruptions, EN61000-4-11 |
100% dip for 1 period; 30% dip for 25 periods; 100% interruption for 250 periods. |
Use the standards listed for this exact US, European or desktop configuration; do not transfer certification or immunity claims from another adapter variant. Final equipment compliance must be checked with its actual cable and load.
Measurement Conditions and Reliability
| General measurement conditions |
Unless otherwise specified: 230 VAC, rated load, 25°C and 70% RH. |
| Voltage set point |
Measured at the plug terminal at 50% load. |
| Ripple/noise measurement |
20 MHz bandwidth; 12-inch twisted pair terminated with 0.1 µF and 47 µF capacitors. |
| Manufacturer warranty |
3 years, subject to manufacturer warranty terms. |
| Catalogue revision |
2026-04-03; combined PDF pages 59–63. |
| Minimum MTBF |
3777.8 thousand hours by Telcordia SR-332; 651.4 thousand hours by MIL-HDBK-217F at 25°C. |
Voltage tolerance includes set-up tolerance, line regulation and load regulation. Line regulation is measured from low line to high line at rated load. Set-up time is measured at the first cold start; repeated on/off switching may increase it.
Application and Selection
Examples include blood glucose meters, blood pressure meters, nebulizers, inhalers and portable medical devices.
Select this exact mains-plug version and output rating for the equipment. Check the matching socket and all applicable safety requirements before installation.
