XLG-320-M-AB LED driver
MEAN WELL XLG-320-M-AB is a 310.8 W constant-power LED driver with a 2800 mA factory current setting and a 74–148 V constant-current operating region. This version provides 3-in-1 current dimming. The LED load must fit the published I–V boundary and power limit; the full voltage/current rectangle is not usable.
Download MEAN WELL XLG-320 Datasheet (PDF)Download MEAN WELL LED Installation Manual
XLG catalog, PDF pages 70–79; XLG-320 specification dated 2026-02-04. The complete SKU identifies the output and control option.
Output and model selection
Rated output
310.8 W; factory current 2800 mA.
Constant-current voltage region
74–148 V, subject to the I–V operating envelope.
Full-power current range
2100–2800 mA. Rated power requires a compatible LED forward voltage within the operating boundary.
Current adjustment
1050–2800 mA via the built-in potentiometer; available for this AB version. Set current to suit the LED load and respect all power/protection limits.
I–V boundary points
Catalog boundary vertices, in mA / V: 1050 / 148; 2100 / 148; 2800 / 111; 2800 / 74; 2100 / 74. These identify the operating area, not simultaneous maximum output values or an overload rating.
Open-circuit voltage
180 V maximum.
Current ripple
5% maximum at rated current.
Current tolerance
±5%.
Input and performance
Input voltage
100–305 VAC / 142–431 VDC. Respect the low-input-voltage derating curve; the DC range is an input rating, not an LED output range.
Input frequency
47–63 Hz.
Input/load derating
At 60 Hz: 80% load at 100 VAC, increasing to 100% at 120 VAC; 100% from 120 to 305 VAC.
Power factor
Active PFC; PF ≥0.98 at 115 VAC, ≥0.95 at 230 VAC and ≥0.92 at 277 VAC, at full load.
Total harmonic distortion
<10% at load ≥50% on 115/230 VAC; <15% at load >75% on 277 VAC.
Efficiency
93.5% typical, under the catalog specification conditions.
AC input current
3 A at 120 VAC; 1.6 A at 230 VAC; 1.3 A at 277 VAC.
Inrush current
Cold start 45 A at 230 VAC; pulse width 1200 µs measured at 50% Ipeak, per NEMA 410.
Circuit-breaker reference
Maximum 2 B-type / 4 C-type units on a 16 A breaker at 230 VAC, as listed in this model’s catalog. Verify the actual breaker and installation conditions.
Leakage current
<0.75 mA at 277 VAC.
Setup time
500 ms at 230 VAC; 1200 ms at 115 VAC.
Standby consumption
<0.5 W with dimming OFF, for this AB standard version.
Control and operating limits
Control function
Isolated 3-in-1 current-level dimming. Connect 0–10 V DC, a 10 V PWM signal at 100 Hz–3 kHz, or a resistance between DIM+ and DIM−. The interface changes the constant-current level; it does not specify a PWM-waveform output.
Control wiring
DIM+ = purple; DIM− = pink. Do not connect DIM− to output Vo−. Connect the LED load directly to the output; additional drivers are not suitable in this control arrangement.
Dimming source and resistance
Typical dimming source current 100 µA. For N drivers in parallel, the chart uses 10 kΩ/N for 10% and 100 kΩ/N for 100% nominal current; verify controller capacity and the complete circuit.
Low-end dimming
Minimum dimming level is about 8%. The output is not defined for 0% < Iout < 8%. Output can reach 0% when DIM+ to DIM− is about 0 Ω, 0 V DC or 0% 10 V PWM duty.
Preset and dimming
The potentiometer sets the output-current ceiling within the published adjustment envelope; dimming is applied through the separate DIM pair. Keep LED current and power within their allowed limits.
High-frequency PWM condition
At PWM frequency above 2 kHz, the catalog identifies a 10–15% duty range for PWM trigger control. Do not assume the ideal 10% low-end graph applies unchanged in this condition.
Protection and recovery
Short-circuit protection
Hiccup mode or constant-current limiting; automatic recovery after the fault is removed.
Overvoltage protection
190–220 V; output shutdown, re-power to recover.
Overtemperature protection
For L/M/H types, power derates automatically at Tcase >85°C ±5°C. If secondary OTP fails, primary OTP shuts down the output; re-power to recover.
Adjustment and switching cautions
The catalog states that adjustment above 110% of rated current enters protection. Apply this condition together with the stated I–V envelope and adjustment table; do not treat the wide adjustment range as an unconditional overload allowance. AC ON/OFF operation at low LED Vf and low load can produce output-current overshoot.
Cooling, environment and reliability
Case-temperature rating
Working Tcase -40 to +85°C; separately listed maximum case temperature +85°C. A case-temperature rating is not an unrestricted ambient-temperature rating.
Ambient/load derating
Recommended horizontal mounting: 120 VAC: 100% through +35°C, then 95% at +40°C, where this curve ends. 230 VAC: 100% through +45°C, then 95% at +50°C, where this curve ends. Meet the ambient-load curve and case-temperature limits together.
Case/load curve
For horizontal mounting, the case-load graph remains at 100% through +85°C and ends there. Observe the working-case rating above as well.
Low-temperature startup
The −40 to −30°C portion of the ambient curve applies at 230 VAC only.
Cooling and altitude
Fanless free-air convection. Nonstandard mounting requires appropriate derating. Above 2000 m, reduce the allowed ambient temperature by 3.5°C per additional 1000 m.
Working humidity
20–95% RH, non-condensing.
Storage conditions
-40 to +80°C; 10–95% RH, non-condensing.
Temperature coefficient
±0.03%/°C over 0–60°C.
Vibration
10–500 Hz, 5 G; 12 minutes per cycle, 72 minutes along each X, Y and Z axis.
Performance-plot conditions
PF, THD and efficiency plots use Tcase 85°C. The L-type examples do not replace the tabulated efficiency for this output version.
Lifetime reference
Typical operating life >50,000 hours with the marked tc/TMP point about 75°C or less. This is an operating-life reference, separate from warranty.
MTBF
1476.4 K hours, Telcordia SR-332; 168.1 K hours, MIL-HDBK-217F at 25°C; catalog minimum estimates.
Mechanical installation and wiring
Dimensions
246 × 77 × 39.5 mm (L × W × H); case 266A; drawing tolerance ±1 mm.
Mounting geometry
Four Ø4.5 mm mounting holes on 235 × 53.8 mm centers; inner longitudinal drawing dimension 222 mm. Use the exact mechanical drawing for mounting clearance and horizontal orientation.
Case measurement point
The drawing marks tc 86 mm from the right body edge and 36 mm from the lower body edge. Measure at this marked location for thermal assessment.
AC input cable
SJOW 17 AWG, 3 conductors / H05RN-F 3 × 1.0 mm²; 300 ±20 mm. Brown = AC/L; blue = AC/N; green/yellow = FG. Connect FG to protective earth.
Output cable
SJOW 17 AWG, 2 conductors / H05RN-F 2 × 1.0 mm²; 300 ±20 mm. Red = +V; black = −V. Verify LED polarity and the installation current rating.
Dimming cable
UL2517 20 AWG, 2 conductors; 320 ±20 mm. Purple = DIM+; pink = DIM−. Maintain the specified isolation and wiring requirements.
Unit mass reference
1450 g per unit, converted from the catalog PACKING single-unit mass; not carton mass or measured shipment weight.
Safety, EMC and specification conditions
Construction
Metal enclosure, Class I protective-earth construction and IP67 ingress rating, with active PFC. IP67 does not authorize immersion or remove the installation restrictions.
Safety approvals and scope
UL 8750 Type HL; CSA C22.2 No.250.13-12; ENEC BS EN/EN 61347-1 and 61347-2-13 (independent), BS EN/EN 62384; EN 60335-1 compliant with EN 60335-2-89 Annex BB and EN 60335-2-24 Annex CC; GB/T 19510.1 and 19510.213; EAC TP TC 004; IP67. KC61347-1 and KC61347-2-13. IS15885(Part2/Sec13), subject to the catalog regional-mark notes.
Regional certification conditions
Americas-sourced products may lack ENEC/CCC/KC marks; confirm the exact delivered unit. Some products may lack the BIS logo; confirm availability.
RCM application boundary
For M/L output branches, RCM is voluntary and the catalog states compliance with the relevant IEC or AS/NZS standards in accordance with AS/NZS 4417.1.
Type HL installation
For A/AB/ABV types, built-in use must be considered to comply with the Type HL application conditions.
Withstand voltage
Input–output 3.75 kVAC; input–FG 2.0 kVAC; output–FG 1.5 kVAC.
Insulation resistance
100 MΩ at 500 VDC, 25°C and 70% RH for input–output, input–FG and output–FG.
EMC emissions
BS EN/EN 55015 (CISPR 15), GB/T 17743; BS EN/EN 61000-3-2 / GB17625.1, Class C at load ≥50%; BS EN/EN 61000-3-3.
EMC immunity
BS EN/EN 61547. EN 61000-4-2: level 3 / 8 kV air and level 2 / 4 kV contact; -4-3 radiated and -4-6 conducted: level 2; -4-4 EFT/burst: level 3; -4-8 magnetic field: level 4.
Surge immunity
EN 61000-4-5: 4 kV line–line / 6 kV line–earth.
Voltage dips and interruptions
EN 61000-4-11: >95% dip for 0.5 periods; 30% dip for 25 periods; >95% interruptions for 250 periods.
Measurement conditions
Unless specifically stated otherwise: 230 VAC input, rated current and 25°C ambient. Ripple/noise uses 20 MHz bandwidth, a 12-inch twisted pair and parallel 0.1 µF / 47 µF capacitors. The complete equipment installation must be requalified for EMC.
Warranty
Manufacturer catalog: 5-year warranty, subject to MEAN WELL’s warranty statement and applicable conditions.
Installation and selection
Installation safety
Disconnect the mains supply and prevent accidental reconnection before installation or maintenance. Have faults examined by a qualified technician; do not open the power-supply case yourself.
Ventilation and mounting
Keep ventilation clear and do not stack objects on the unit. Keep 10–15 cm clearance when the adjacent device is a heat source. Follow this model’s mounting, ambient-temperature and output-derating requirements.
System wiring and protection
Use approved primary and secondary wiring rated for at least the applicable unit current. Provide suitable system-level insulation and an enclosure around single-insulated wiring; verify EMC again in the completed system. Connect a fitted FG lead to protective earth according to the model wiring; the manual exempts only units marked Class II and ungrounded.
Environmental and load limits
Do not immerse the unit or install it near fire or above its specified ambient limit. Keep output current and power within the model’s rated operating envelope. If a fitted external flexible cable is damaged, replacement is limited to the manufacturer, its service agent or a similarly qualified person.
Connection seals and support
If waterproof connectors are fitted, secure their connections to prevent water entry. Verify the mounting structure and luminaire strength; use safety cables for bay-light applications.
Adjustable-unit weather protection
This IP67 model has a built-in adjustment function. Install it indoors or in a location sheltered from rain outdoors, as required by the installation manual. IP67 does not permit immersion.
Dimming-controller installation
Verify that the controller can drive the actual interface and number of units. For standalone use with dimming conductors smaller than 18 AWG (0.75 mm²), use SELV controllers/networks; contact MEAN WELL for guidance before using FELV control. Follow this exact model’s dimming method and wiring.
ErP switching requirement
Use this LED driver behind a switch; it must not remain permanently connected to the mains for the catalog ErP lighting-fixture application.
Selection and applications
Select the complete input/output/control suffix for the LED load. The family applications include street, architectural, bay, flood and horticultural lighting, subject to the exact electrical envelope, thermal design and installation limits.
Configuration and accessories
External controllers, connection hardware and any optional surge configuration must be selected for the actual model. No dedicated separately ordered accessory is included by this product description; confirm the manufacturer’s complete ordering specification for a modified configuration.
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