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210 x 85 x 46mm | 85~264VAC / 120~370VDC Input | 6 Output Models 12V ~ 48VDC | 180W ~ 221W | 3-Pole IEC320-C14 AC Inlet | Class I with Protective Earth | Active PFC, PF>0.98 | Fanless Design | No-Load <0.15W | Efficiency Level VI, up to 94.5% | Leakage 0.75mA Max | -30~+70C | 3-Year Warranty
The MEAN WELL GST220A series is a high-reliability 220W-class AC-DC desktop single-output green adapter built into a fully enclosed, fanless plastic housing. It connects to mains through a 3-pole IEC320-C14 inlet and is a Class I power supply with protective earth. Input range is 85~264VAC or 120~370VDC, and the series covers six output voltages from 12V to 48VDC, serving consumer electronic devices, telecom equipment, office equipment and industrial equipment.
The input stage uses active power factor correction, with power factor above 0.91 at 230VAC and above 0.98 at 115VAC at full load. Maximum leakage current is 0.75mA at 240VAC. Withstand voltage is 3KVAC input-to-output and 2KVAC input-to-FG with the output-to-FG path effectively shorted; insulation resistance is 100M Ohms minimum at 500VDC. Because there is no fan, there is no airflow path to filter and no bearing to wear out - the 94V-0 flame-retardant enclosure is fully sealed. This is an ITE product: for patient-contact medical equipment choose a 60601-1 certified adapter from the GSM series instead.
Typical efficiency runs from 90% on the 12V and 15V models to 94.5% on the 48V model, with no-load power consumption below 0.15W across the whole series, meeting Efficiency Level VI and complying with USA EISA 2007/DoE, Canada NRCan, Korea K-MEPS, AU/NZ MEPS, EU ErP and CoC Version 5. Efficiency is published per model and does not rise monotonically: the 36V model is rated 93%, below the 24V model's 93.5%. Rated power also varies by model - 12V is 180W, 15V is 201W, 20V is 220W, while 24V and 48V are rated 221W and 36V 219.6W - so always quote the model's own figure.
The standard output plug on all six models is the R7B 4-pin power DIN with lock, and on the R7B the negative output is connected to AC FG, so the output is referenced to protective earth rather than floating. Tuning fork, DIN, XLR, MOLEX and AMP connectors can be fitted at the factory. A quick-change plug adapter for the P1J and P1M tuning-fork plugs is rated 7.5A maximum and is published for the 48V model only - every other model draws more than 7.5A. Protections cover short circuit, overload (105%~135% of rated power, hiccup mode with auto-recovery), over voltage (105%~135% of rated output voltage, hiccup mode at 10% load) and over temperature (output shutdown with automatic recovery once the unit cools). The 210 x 85 x 46mm adapter weighs 1.1Kg, operates from -30C to +70C and is backed by a 3-year warranty.
Output ratings for all six GST220A models. All values measured at 230VAC input, rated load, 25C / 70%RH unless otherwise noted.
| Model | Output Voltage | Rated Current | Current Range | Rated Power (Max) | Efficiency (Typ.) |
|---|---|---|---|---|---|
| GST220A12-R7B | 12V | 15A | 0 ~ 15A | 180W | 90% |
| GST220A15-R7B | 15V | 13.4A | 0 ~ 13.4A | 201W | 90% |
| GST220A20-R7B | 20V | 11A | 0 ~ 11A | 220W | 92% |
| GST220A24-R7B | 24V | 9.2A | 0 ~ 9.2A | 221W | 93.5% |
| GST220A36-R7B | 36V | 6.1A | 0 ~ 6.1A | 219.6W | 93% |
| GST220A48-R7B | 48V | 4.6A | 0 ~ 4.6A | 221W | 94.5% |
Rated power is not a flat 220W: 12V is 180W, 15V is 201W, 20V is 220W, 24V and 48V are 221W and 36V is 219.6W, exactly as the datasheet publishes. Efficiency is one figure per model and does not rise with voltage either - 36V is 93%, below the 24V model's 93.5%. The 36V and 48V models also carry tighter output tolerance at ±2.0%.
| Model | Ripple & Noise (Max) | Voltage Tolerance | Line Regulation | Load Regulation |
|---|---|---|---|---|
| GST220A12-R7B | 80mVp-p | ±5.0% | ±1.0% | ±5.0% |
| GST220A15-R7B | 100mVp-p | ±5.0% | ±1.0% | ±5.0% |
| GST220A20-R7B | 120mVp-p | ±4.0% | ±1.0% | ±4.0% |
| GST220A24-R7B | 150mVp-p | ±3.0% | ±1.0% | ±3.0% |
| GST220A36-R7B | 200mVp-p | ±2.0% | ±1.0% | ±2.0% |
| GST220A48-R7B | 200mVp-p | ±2.0% | ±1.0% | ±2.0% |
Overload and over-voltage protection are specified once for the whole series: overload trips at 105%~135% of rated output power in hiccup mode with automatic recovery, and over-voltage trips at 105%~135% of rated output voltage in hiccup mode at 10% load. Over-temperature protection shuts the output down and recovers automatically once the unit cools - no manual restart is needed. All three are listed in the Input & Protection table below.
| Style | Type | Model | OD x ID x L (mm) | Quick-Change Adapter |
|---|---|---|---|---|
| Standard (all models) | 4-pin power DIN with lock, -V bonded to AC FG | R7B | - | Supplied on all six models |
| Tuning Fork | Straight (5.5 x 2.1 x 11.0) | P1J | 5.5 x 2.1 x 11.0 | 48V model only (7.5A max) |
| Tuning Fork | Straight (5.5 x 2.5 x 11.0) | P1M | 5.5 x 2.5 x 11.0 | 48V model only (7.5A max) |
| Min. DIN 4 Pin with Lock (female) | KYCON KPJX-CM-4S equivalent | R7BF | - | Not available |
| DIN 5 Pin (male) | - | R1B | - | Not available |
| XLR 4 Pin (NEUTRIK NC4FX equivalent) | - | MIC4 | - | Not available |
| MOLEX 39-01-2060 (4.2mm) equivalent | FG not connected to the output connector | C6P | - | Not available |
| AMP 1-480702-0 (6.35mm) equivalent | FG not connected to the output connector | C4P | - | Not available |
| Stripped & tinned leads | Custom (MOQ required) | Custom | Red / blue +Vo, black / white -Vo | standard L: 25mm, L1: 5mm | Not available |
Note: quick-change adapter availability is listed per plug family as published in the MEAN WELL datasheet. On the GST220A only the P1J and P1M tuning-fork plugs accept a quick-change adapter, and the datasheet publishes it for the 48V model only at 7.5A maximum - not the 24~48V range of the smaller GST160A. The 12V (15A), 15V (13.4A), 20V (11A) and 24V (9.2A) models are well above that limit. The 36V model draws 6.1A, inside the limit, but the datasheet does not list it - confirm with us before ordering. Every other style is factory-fit and requires a minimum order quantity. On the standard R7B plug the negative output is connected to AC FG; the optional C6P and C4P connectors leave FG unconnected to the output connector.
| AC Input Range | 85~264VAC | 47~63Hz |
| DC Input Range | 120~370VDC |
| AC Inlet | 3-pole IEC320-C14 inlet | Class I construction with protective earth |
| Power Factor (Typ.) | PF>0.91 / 230VAC | PF>0.98 / 115VAC at full load | Active PFC |
| AC Current (Typ.) | 4A / 115VAC | 2A / 230VAC |
| Inrush Current (Max.) | Cold start 95A / 115VAC | 120A / 230VAC |
| Leakage Current (Max.) | 0.75mA / 240VAC |
| Efficiency (Typ.) | 90% / 90% / 92% / 93.5% / 93% / 94.5% on 12V / 15V / 20V / 24V / 36V / 48V | Efficiency Level VI for the whole series | Complies with USA EISA 2007/DoE, Canada NRCan, Korea K-MEPS, AU/NZ MEPS, EU ErP and CoC Version 5 |
| No-Load Power Consumption | <0.15W |
| Set Up / Rise Time | 2000ms, 50ms / 230VAC | 2000ms, 50ms / 115VAC at full load |
| Hold Up Time (Typ.) | 20ms / 230VAC | 20ms / 115VAC at full load |
| Overload Protection | 105%~135% of rated output power | Hiccup mode, auto-recovery after the fault condition is removed |
| Over-Voltage Protection | 105%~135% of rated output voltage | Hiccup mode at 10% load |
| Over-Temperature Protection | Output shutdown, auto-recovery once the internal temperature drops |
| Operating Temp / Humidity | -30~+70C, fanless design (refer to derating curve) | 20~90% RH non-condensing |
| Storage Temp / Humidity | -40~+85C | 10~95% RH non-condensing |
| Temp Coefficient | ±0.03%/C (0~50C) |
| Vibration | 10~500Hz, 2G, 10min/cycle, 60min each along X, Y, Z axis |
| DC Output Cable | UL2464 16AWG x 4C 1000±50mm on every model |
| Output Reference (-V / FG) | Standard R7B plug: -V is connected to AC FG, so the output is referenced to protective earth | Optional C6P / C4P connectors: FG not connected to the output connector |
| MTBF | 2006.1K hrs min. Telcordia SR-332 (Bellcore) | 209.4K hrs min. MIL-HDBK-217F (25C) |
| Dimensions / Packing | 210 x 85 x 46mm (L*W*H) | 1.1Kg; 12pcs / 14.2Kg / 0.81CUFT per carton |
| Enclosure Model / Indicator | Enclosure model 961A | Power-on LED indicator on the housing |
| ITE Safety Standards | UL62368-1; CSA C22.2 No.62368-1; TUV BS EN/EN62368-1; IEC62368-1; BSMI CNS15598-1; CCC GB4943.1; PSE J62368-1; AS/NZS 62368.1; BIS IS13252; KC K60950-1; EAC TP TC 004 |
| Protection Class | Class I (protective earth bonded through the 3-pole IEC320-C14 inlet) |
| Withstand Voltage | I/P-O/P: 3KVAC | I/P-FG: 2KVAC | O/P-FG: SHORT |
| Insulation Resistance | I/P-O/P: 100M Ohms / 500VDC / 25C / 70% RH |
| EMC Emission | Conducted emission: BS EN/EN55032 (CISPR32), FCC Part 15 / CISPR22, CAN ICES-3(B)/NMB-3(B), CNS15936, GB17625.1, EAC TP TC 020, MSIP KN32 - Class B | Radiated emission: same standards, Class B | Harmonic current: BS EN/EN61000-3-2, GB9254 Class A | Voltage flicker: BS EN/EN61000-3-3 |
| EMC Immunity | BS EN/EN55035 | ESD BS EN/EN61000-4-2 Level 4 (15KV air) / Level 4 (8KV contact) | RF field BS EN/EN61000-4-3 Level 2, 3V/m | EFT bursts BS EN/EN61000-4-4 Level 2, 1KV | Surge BS EN/EN61000-4-5 Level 3, 1KV line-line / 2KV line-FG | Conducted susceptibility BS EN/EN61000-4-6 Level 2, 3V | Magnetic field BS EN/EN61000-4-8 Level 2, 3A/m | Voltage dips and interruption BS EN/EN61000-4-11 |
| Housing / Protections | 94V-0 flame-retardant fully enclosed plastic housing, fanless | Protections: short circuit / overload / over voltage / over temperature |
| Warranty | 3 years |
Exception: GST220A36-R7B is approved to a shorter list. The datasheet marks BIS IS13252, KC K60950-1 and EAC TP TC 004 as "except for 36V", so the 36V model carries UL62368-1, CSA C22.2 No.62368-1, TUV BS EN/EN62368-1, IEC62368-1, BSMI CNS15598-1, CCC GB4943.1, PSE J62368-1 and AS/NZS 62368.1 only. If your project requires BIS, KC or EAC approval, choose 12V / 15V / 20V / 24V / 48V instead.
Five of the six models are certified to UL62368-1, CSA C22.2 No.62368-1, TUV BS EN/EN62368-1, IEC62368-1, BSMI CNS15598-1, CCC GB4943.1, PSE J62368-1, AS/NZS 62368.1, BIS IS13252, KC K60950-1 and EAC TP TC 004. The 36V model is the exception: the datasheet marks BIS IS13252, KC K60950-1 and EAC TP TC 004 as "except for 36V", so GST220A36-R7B carries the first eight only. Conducted and radiated emissions meet Class B limits to BS EN/EN55032 (CISPR32), FCC Part 15 / CISPR22, CAN ICES-3(B)/NMB-3(B), CNS15936, GB17625.1, EAC TP TC 020 and MSIP KN32.
Earth-referenced, on the standard build. The datasheet R7B pin definition states that the negative output (-V) is connected to AC FG, so the output sits on protective earth through the mains inlet - this is not an isolated floating output. If your end device expects a floating output, or the load side already has its own earth reference, tell us before ordering: the optional C6P and C4P connectors are specified with FG not connected to the output connector, and a modified build can be discussed with a minimum order quantity.
No. The datasheet rates them individually: 12V is 180W (15A), 15V is 201W (13.4A), 20V is 220W (11A), 24V is 221W (9.2A), 36V is 219.6W (6.1A) and 48V is 221W (4.6A). The 24V and 48V models actually exceed the 220W nominal by a watt, and 36V falls just short. Quote the model's own figure - writing "220W" on a 12V or 15V quotation is a 40W and 19W overstatement respectively.
Because that is the published figure. The GST220A datasheet specifies 92% for 20V, 93.5% for 24V, 93% for 36V and 94.5% for 48V. Efficiency on this platform is not a straight line with output voltage, and 36V is where the design sits least favourably. Quote 93% for GST220A36-R7B - do not carry the 24V or 48V number across, and do not use the series headline of 94.5% when the end customer is comparing a 36V design.
No, and this matters for tenders. The datasheet excludes BIS IS13252, KC K60950-1 and EAC TP TC 004 for the 36V model, so GST220A36-R7B is approved to UL62368-1, CSA C22.2 No.62368-1, TUV BS EN/EN62368-1, IEC62368-1, BSMI CNS15598-1, CCC GB4943.1, PSE J62368-1 and AS/NZS 62368.1 only. If your project needs Indian, Korean or EAEU approval, specify 12V / 15V / 20V / 24V / 48V instead.
Yes - no fan, the whole housing is the heatsink. The series is rated -30C to +70C, and because there is no forced airflow the output must be derated above the rated ambient according to the derating curve in the datasheet; low input voltage also requires derating. Above 2000m altitude the permitted ambient drops by 3.5C per 1000m for fanless models. If your enclosure is sealed or poorly ventilated, send us the internal ambient temperature and we will confirm the usable output.
On the 48V model, yes - the datasheet publishes the P1J / P1M quick-change adapter for 48V with a 7.5A maximum rating. On the 12V (15A), 15V (13.4A), 20V (11A) and 24V (9.2A) models the output current is above that limit, so the plug is factory-fitted only. The 36V model draws 6.1A, which is inside the 7.5A rating, but the datasheet does not list it - confirm with us before you plan on a field swap.
GST220A is a Class I power supply. It connects through a 3-pole IEC320-C14 inlet and bonds the protective earth, so the mains side carries a protective earth conductor, and it uses a 94V-0 flame-retardant fully enclosed plastic housing. It is not a double-insulated Class II product and must be run from an earthed mains supply.
Overload protection trips at 105%~135% of rated output power and runs in hiccup mode, recovering automatically once the fault is removed. Over-voltage protection trips at 105%~135% of rated output voltage and is specified as hiccup mode at 10% load. Over-temperature protection shuts the output down and then recovers automatically once the internal temperature drops - unlike earlier platforms in this family there is no manual restart needed. Short circuit protection also recovers automatically.
No. GST220A is an ITE product certified to the 62368-1 safety standard. For equipment with patient contact, use a 60601-1 certified adapter from the MEAN WELL GSM medical series instead, which provides 2xMOPP isolation and touch current below 50uA. The adapter is in any case a component intended to be built into end equipment, so EMC and safety of the complete system must be confirmed with the finished device.
Explore every output voltage in the GST220A family.
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