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Series 150 -- Series 200 -- Series 250 Modular Welding Power Generator Specifications
Power Output @ 100% Duty Cycle	Series 150 --> 150 amps. (VIEW Output Curve) Series 200 --> 200 amps. (VIEW Output Curve) Series 250*--> 250 amps. (View Output Curve)	(mounted per factory recommendations, turning in recommended direction, with no obstruction to flow of cooling air) Series 250 requires ZENA model ER350 external full-wave rectifier assembly
Minimum Drive Engine Power / Torque Requirements	Series 150 --> 11 hp (Gas), 8 hp (Diesel) Series 200 --> 16 hp (Gas), 11 hp (Diesel) Series 250 --> 22 hp (Gas), 14 hp (Diesel	Series 150 --> (View Torque Curve) Series 200 --> (View Torque Curve) Series 250 --> (View Torque Curve)
Case Dimensions	Series 150 -- 6.5" W x 8.5" H x 7" D (See Series 150 Illustration) Series 150B -- 6.5" W x 8.5" H x 9" D (See Series 150B Illustration) Series 200 -- 6.5" W x 9.5" H x 10" D (See Series 200 Illustration) Series 250 -- 7.5" W x 9.5" H x 9" D (See Series 250 Illustration)	(Clear space clearance requirement -- including pulley, terminals, and mounting lugs)
Typical Voltage Output @ Full Power w/Arc Established	20-26V Ultra High Frequency DC	(Typically 18,000-21,000 pulses/controlled wave form transitions per second)
Typical Voltage Output @ Full Power w/NO Arc Established	68-74V Ultra High Frequency DC	(Typically 18,000-21,000 pulses/controlled wave form transitions per second)
Min. Power Generator Shaft Speed for Maximum Output Power	Approximately 6,500 RPM	(Higher shaft speeds — up to approximately 16,000 rpm - have no detrimental effect on welding performance)
Typical Min. Engine Speed for Max. Output Power	Approximately 2,400 RPM	(Assumes typical engine drive pulley to Power Generator pulley ratio of approximately 2.5:1)
Direction of Rotation	Series 150 -- Clockwise Rotation Series 150B -- Bi-directional Rotation (Clockwise Typical -- Hi-Efficiency Clockwise Option Available) Series 200 -- Bi-directional Rotation (Clockwise Typical) Series 250 -- Bi-directional Rotation (Clockwise Typical)	Series 150B, 200 & 250 NOTE: When operating a 150B, 200 or 250 series Generator in CCW rotation mode, a thread-locking chemical adhesive should be used to insure Power Generator Drive Shaft Nut to Drive Shaft fastener connection integrity. Optionally, for high vibration applications, an anaerobic stud/bearing fixing adhesive can also be used to insure secure and continuous, Drive Pulley to Cooling Fan and Drive Pulley to Power Generator Drive Shaft Nut contact.
System Cooling	High Efficiency Forced Air
Expected Minimum Time Before Moving Component Failure	50,000 hours (rotating - welding load)	NOTE: 50,000 hours = 2,083 twenty-four hour days (5.7 years of continuous operation)
Periodic Maintenance Requirement	None	NOTE: Cleaning (with water and/or compressed air) may be required if operating in very dirty conditions, or if chemical contamination occurs.
DC Power Required (When Welding)	12 volts -- 7 amps. maximum	(2 to 4 amps at average welding power settings in 12V electrical system)
DC Power Required (When NOT Welding)	12 volts -- .05 amps.
Control Circuit Protection	Internal Fuses (2)	(2 amp & 10 amp)
Welding Controls	Internal, Solid State OR External, Solid State	(Built into electrode holder/welding cable assembly) (Various panel mount type control options)
Accessory Control Circuits	External Device Control Outputs --> Two Standard (more control outputs can be provided)	Control outputs to control up to 3 separate ASC Series speed controls, and for up to 6 separate WC.12S Slave Power Control Modules. (additional control outputs can be provided as an extra cost option)
Welding Rod Sizes	Series 150 --- 1/16" to 1/8" (All) to 5/32" (Some) Series 200 --- 1/16" to 5/32" (All) to 3/16" (Some) Series 250 --- 1/16" to 3/16" (All) to 1/4" (Some)
Welding Rod Compatibility	ALL Types, AC or DC, including specialty rods: Mild Steel, Low Hydrogen Steel, Stainless, Aluminum, Nickel, Nomacast, Brazing, Hard Surfacing --- AND Cutting Rods
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The ZENA mobile welding system is manufactured in the USA by ZENA, Incorporated and is sold with a three year limited warranty. We also have a unique guaranteed overhaul/rebuilding cost policy. You have no risk if you order on-line, all units are sold with a 60-day money back guarantee of satisfaction. ZENA™ is a trademark owned by ZENA, Inc. for its welding systems and related products. US & Foreign Patents Pending © Copyright 1998,1999, 2000, 2001 by ZENA, Incorporated. All rights reserved. [an error occurred while processing this directive]