MEAN WELL GP25A14E-R1B is a GP25A triple-output desktop AC/DC power adapter with +5 V / +15 V / −15 V outputs and a total rated power of 29 W. Its Class I construction uses a three-pole IEC320-C14 AC inlet with protective earth and an R1B five-pin DIN output connector. Observe each output’s minimum and maximum load, the combined power limit and the temperature/input derating curves.
Product Datasheet
Download MEAN WELL GP25A Datasheet (PDF)
The GP25A section is on PDF pages 1, 2, 3, 4. Refer to the complete mechanical drawings and notes when planning installation.
Model and Configuration
Complete model
GP25A14E-R1B.
Product type
Triple-output desktop AC/DC industrial power adapter.
AC connection and electrical class
IEC320-C14 three-pole inlet; Class I, with protective earth (FG).
Output configuration
+5 V / +15 V / −15 V.
Output connector code
R1B: standard male five-pin power DIN connector.
Configuration availability
Standard three-output voltage combination.
Enclosure and indication
Fully enclosed 94V-0 flame-retardant plastic case; power-on LED.
No-load power consumption
<0.3 W.
Energy efficiency
Level VI; USA EISA 2007/DoE.
The three outputs belong to one complete power unit. The combined rating is not a separate power allowance for each channel.
Combined Output Limits
Total rated output power
29 W, for the complete three-output unit.
Typical efficiency
80.5%, at the catalogue test conditions.
Load selection
Keep all three outputs within their individual current ranges and keep total output power at or below the stated unit rating.
The output-voltage set point is measured at the DC plug terminals with 50% load. Apply the stated minimum loads; independent zero-load operation of each output is not specified.
For a change from light load (20% of rated load) to full load, the catalogue specifies load regulation within ±5% and cross regulation within ±15%. Use these cross-load conditions together with each channel’s individual regulation and voltage-tolerance limits.
CH1 Output
Nominal DC voltage
+5 VDC.
Rated set current
2.5 A.
Permitted current range
0.5–2.5 A.
Ripple and noise, maximum
100 mVp-p.
Voltage tolerance
±5.0%.
Line regulation
±1.0%.
Load regulation
±5.0%.
CH2 Output
Nominal DC voltage
+15 VDC.
Rated set current
0.8 A.
Permitted current range
0.1–0.8 A.
Ripple and noise, maximum
150 mVp-p.
Voltage tolerance
-5.0% to +15%.
Line regulation
±1.0%.
Load regulation
±5.0%.
CH3 Output
Nominal DC voltage
−15 VDC.
Rated set current
0.3 A.
Permitted current range
0.1–0.3 A.
Ripple and noise, maximum
50 mVp-p.
Voltage tolerance
±3.0%.
Line regulation
±1.0%.
Load regulation
±3.0%.
Input and Timing
AC input
90–264 VAC; 47–63 Hz.
DC input
135–370 VDC.
AC input current
0.8 A at 100 VAC; 0.4 A at 230 VAC.
Cold-start inrush current, maximum
30 A at 115 VAC; 60 A at 230 VAC.
Leakage current, maximum
0.75 mA at 240 VAC.
Set-up / rise / hold-up, full load
At 230 VAC: 800 / 50 / 20 ms. At 115 VAC: 1200 / 50 / 16 ms.
Select an AC cord suitable for the region, IEC320-C14 inlet and electrical load. The catalogue does not establish that a detachable mains cord is included.
Protection
Short circuit / overload
110–160% of rated output power; hiccup mode, with automatic recovery after removal of the fault.
Overvoltage
Zener-diode clamp on the 5 V output only; the specified protective action shorts the output.
Cooling and Operating Limits
Working ambient
−20 to +70°C, subject to the horizontal-installation derating curve.
Temperature derating
100% load from −20 to 40°C; 70% at 50°C; 50% at 60°C; 40% at 70°C.
Low-input derating
At 60 Hz: 90% load at 90 VAC, rising to 100% at 100 VAC; 100% from 100 to 264 VAC.
Working humidity
20–90% RH, non-condensing.
Storage
−20 to +85°C; 10–95% RH, non-condensing.
Temperature coefficient
±0.03%/°C over −20 to +40°C.
Vibration
10–500 Hz, 2 G; 10 minutes per cycle, 60 minutes along each X, Y and Z axis.
Apply both temperature and input-voltage limits. The upper ambient limit is not an unconditional full-power rating.
Dimensions and Installation
Enclosure, L × W × H
107.5 × 67 × 36 mm.
Attached output cable
UL2464 18AWG × 3C and 20AWG × 2C; 1530 mm +150/−0 mm.
Case details
Power-on LED and four rubber feet; use the dimensional drawing for placement and clearance.
Connector outline
The drawing marks the output plug body at 54.8 mm and its projecting connection portion at 10.2 mm.
Connect protective earth through the designated FG connection. Use the connector face and numbered pin drawing to establish orientation; the supply is intended for integration with the correct mating connection.
R1B Output Pin Assignment
Pin 1
COM.
Pin 2
COM.
Pin 3
+5 VDC, CH1.
Pin 4
−15 VDC, CH3 (−Vout).
Pin 5
+15 VDC, CH2 (+Vout).
Connector shell
AC FG.
COM and protective earth have different functions; use the connections shown in the catalogue rather than substituting a pin assignment from another five-pin adapter.
Optional Cable Termination
Alternative termination
Stripped and tinned leads are available by customer request instead of the standard R1B plug.
Lead 1, black
COM.
Lead 2, blue
COM.
Lead 3, red
+5 VDC.
Lead 4, white
−15 VDC (−Vout).
Lead 5, yellow
+15 VDC (+Vout).
Drain wire
FG.
Standard lead preparation
L = 70 mm; L1 = 10 mm. These lengths can be specified by request.
Order selection
Specify the complete adapter model and required cable termination. The catalogue does not assign a separate complete accessory order code to this custom lead option.
Other output arrangement
Dual-output versions are optional; confirm the required output configuration and complete order reference before ordering.
The optional termination is a separately specified configuration, not an extra adapter or cable included with the standard R1B version.
Safety and EMC
Catalogue safety standards
IEC62368-1, UL62368-1, CSA22.2, BS EN/EN62368-1 and EAC TP TC 004.
Withstand voltage
Input/output: 4242 VDC; input/FG: 2121 VDC.
Insulation resistance
Input/output and input/FG: 100 MΩ at 500 VDC, 25°C and 70% RH.
Conducted and radiated emissions
Class B: BS EN/EN55032 (CISPR32), FCC Part 15 / CISPR22, and CAN ICES-3(B)/NMB-3(B).
Harmonic current / flicker
BS EN/EN61000-3-2 Class A; BS EN/EN61000-3-3.
ESD
BS EN/EN61000-4-2: 8 kV air, Level 3; 4 kV contact, Level 2.
RF field / EFT
BS EN/EN61000-4-3: 3 V/m, Level 2; -4-4: 1 kV, Level 2.
Surge
BS EN/EN61000-4-5: 1 kV L–N and 2 kV L,N–PE, Level 3.
Conducted susceptibility
BS EN/EN61000-4-6: 3 V, Level 2.
Voltage dips / interruptions
BS EN/EN61000-4-11: >95% dip for 0.5 periods; 30% dip for 25 periods; >95% interruption for 250 periods.
Use the approvals applicable to the exact model and destination. The adapter is considered an independent unit, but the complete equipment must still be checked for compliance with the applicable EMC directives.
Weight and Reliability
Catalogue weight reference
300 g: the 0.3 kg catalogue packing reference per unit, not a measured shipment weight.
Carton packing
54 pieces / 20 kg per carton.
Life reference
3 years at 100% load, 40°C and 8 hours per day.
MTBF, minimum estimate
620,000 hours under MIL-HDBK-217F at 25°C.
Manufacturer warranty
3 years, subject to applicable manufacturer terms.
Catalogue revision
2026-01-09.
Measurement and Selection Notes
Unless otherwise specified, catalogue parameters are measured at 230 VAC, rated load, 25°C and 70% RH.
Ripple and noise are measured at 20 MHz bandwidth with a 12-inch twisted pair terminated by parallel 0.1 µF and 47 µF capacitors.
Voltage tolerance includes set-up tolerance, line regulation and load regulation. Line regulation is measured from low to high input at rated load.
Refer to PDF pages 1–4 for the complete model table, derating curves, mechanical drawing and cable options.
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