Multiquip DLW500ESA4 Welder/Generator

The Multiquip DLW500ESA4 is a top-tier CC/CV welder and generator designed for superior performance, reliability, and efficiency on the toughest jobsites. Delivering up to 500 amps in single-operator mode or 250 amps per output in dual-operator mode, this unit provides unmatched versatility for both small and large-scale welding applications. As a generator, it produces 14 kW of clean, stable 120/240V AC power, ensuring consistent energy for tools, lights, and accessories. Powered by a durable Tier 4 Final Isuzu 4LE2T turbo diesel engine, the DLW500ESA4 features advanced technologies including Smart Stick, E-Mode, Arc Force Control, and 14-pin remote interface compatibility for enhanced control and productivity. Ideal for structural, industrial, and pipeline applications, this unit sets the standard for high-output welding performance and jobsite efficiency.

FEATURES:

• Delivers up to 500 amps of welding power and 14 kW of 120/240V AC generator output
• Dual-operator output capability (250 amps per side) for maximum productivity
• Simultaneous welding and AC power draw for enhanced versatility
• Exceptional voltage regulation within ±1.5% ensures clean, consistent performance
• Powered by a Tier 4 Final Isuzu 4LE2T turbo diesel engine for long-lasting, efficient operation
• Arc Force Control allows fine-tuning of DC current to prevent electrode sticking and ensure smooth arc stability
• Superior arc characteristics produce consistent, high-quality weld penetration
• E-Mode improves fuel efficiency by allowing single-operator welding up to 280 amps at idle speed Dual-operator mode supports up to a combined total of 180 amps while maintaining idle speeds
• Smart Stick function automatically shuts down the engine during idle periods — a simple tap of the welding rod restarts the unit, ideal for high-access or elevated work areas
• Supports multiple welding processes including SMAW, FCAW, GMAW, GTAW, and ACAC
• Equipped with 14-pin interface connections\ for remote control accessories and wire feeders
• Sound-attenuated cabinet reduces operating noise to just 65 dBA @ 23 feet
• Full panel GFCI protection, OSHA and NEC compliant for safe operation on the jobsite

Optional Accessories and Attachments

• TRLR502XFE - Tandem axle trailer (Heavy duty) w/ 80 gallon fuel (Electric)
• TRLR502XFH - Single axle trailer (Heavy duty) with 28 gallon fuel (Hydraulic)
• MQPBCDAKIT - Battery Tender
• HEATPADKIT - Block Heater (Pan Heater type)

Specifications

• DC Voltage: CC: Single 38V Dual 30V V and CV: Single 36.5V Dual 26.5V V
• DC Current: CC: Single 450 Dual 250 A and CV: Single 450 Dual 250 A
• Current Range: Single 30-500, Dual 30-280 A
• Max Duty Cycle w/ Full Amps Availible: 100% @Single 450, Dual 180 A
• Welding Processes: SMAW, FCAW, GMAW, GTAW, ACAC
• Fuel Tank Capacity: 17.7 gal (67 L)
• Fuel Consumption at Rated Load: 1.59 gph
• Length: 80 in (2035 mm)
• Width: 33 in (830 mm)
• Height: 45 in (1130 mm)
• Shipping Dimensions: 80 x 33 x 45 in (2035 x 830 x 1130 mm)
• Operating Weight: 2148 lb (975 kg)
• Shipping Weight: 1960 lb (890 kg)

Generator Specifications

• AC Power Output (Single Phase): 14 kW
• Cycle: 60 Hz
• Voltage: 120/240 V
• Amperage: 58.3 x2 / 58.3 A
• Voltage Regulation: 1.5 %
• Receptacles: NEMA 5-20R 125V GFCI 20A, NEMA L5-30R 125V Twist-Lock 30A, NEMA L6-30R 250V Twist-Lock 30A, CS-6369 125/250VAC Twist-Lock 50A