Recommended Equipment and Processes

B-4

OPERATION

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Simple

•Easy installation with 10 ft. (3 m) work clip lead and user preference quick-connect “pig-tails” for input and electrode weld cables.

•Easy setup with only a few intuitive welding controls and lit displays. This includes a single Power/Mode switch with Input level light, and a single presettable Output Control with separate digital meters for Amps and Volts, featuring post-weld five second memory display.

•Easy Service with quick-to-replace cable “pig-tails” and “plug-in” assembly modules, including accessi- ble PC boards and interchangeable “plug-n-play” panel instruments.

Robust

MULTI-SYSTEM POWER SOURCE

The Multi-Source 40KW, 80VDC buss power source (K1752-1) is recommended for use in the Multi-Weld system. However, other DC power sources capable of supplying the required system buss current, at above 60 volts, may be used. It is recommended that this power source have lower output inductance (choke) such as the Lincoln Electric DC-1000, DC-655 or DC- 600 set for maximum output in CC mode. The power source output VA capacity should be 10% greater than the sum of the maximum VA of the converter arcs, which may all be simultaneously welding or gouging:

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	• Capacity is rated for continuous operation at 350	Power Source (Volts x Amps) capacity > 1.1 x
	amps in 50°C (122°F) ambient temperature, and can
		Sum of Converters’ (Volts x Amps) arcs
	be paralleled to multiply CC mode output rating.

•Overload protection is provided with electronic limit- ing of output current, and with thermostat and over-

	voltage shutdown protection that automatically reset.	DISTRIBUTION BOX
•	Outdoor operation protected with sealed control and	The Multi-Weld Distribution Box (K1736-1) is available
	power electronics compartments, with sealed inter-	for interconnection of the Multi-System using the same
	connections, housing “potted” circuit boards, and	“pig-tail” connection method provided with the Multi-
	using “Central-Air” cooling with “Fan-As-Needed” for	Weld 350 converter. Six cable strain-relief ports are
	less dirt intake.	provided for connection of up to (12) cables for distrib-
•	Handling (and mishandling protection) is enhanced	ution or "daisy-chain" inter-connection to other boxes.
•	Handling (and mishandling protection) is enhanced	Four “pig-tail” leads (see below) are included with the
	with light, but durably designed, aluminum construc-	Four “pig-tail” leads (see below) are included with the
	with light, but durably designed, aluminum construc-	Box.
	tion with front to back, top and bottom, handles (also	Box.
	tion with front to back, top and bottom, handles (also
	serving as “roll bar” and skid), and a sheetmetal shell	“PIG-TAIL” LEADS AND CONNECTORS
	attached with 1/4" steel threaded fasteners.	“PIG-TAIL” LEADS AND CONNECTORS
		Accessory “pig-tail” leads and Twist-Mate connectors
		are available from Lincoln for extra connections to the
		Multi-Weld 350 or the Distribution Box:
		Order No.	Description:
		CL012705	22 in.(56 cm) long 2/0 (70 mm2) cable
			with 0.5 in.(13 mm) hole lug and cut-off
			ends.
		K852-70	Twist-Mate male insulated plug for
			1/0-2/0 (50-70 mm2) cable.
		K852-95	Twist-Mate male insulated plug for
			2/0-3/0 (70-95 mm2) cable.
		K1759-70	Twist-Mate female insulated receptacle
			for 1/0-2/0 (50-70 mm2) cable.
		K1759-95	Twist-Mate female insulated receptacle
			for 2/0-3/0 (70-95 mm2) cable.

MULTI-WELD 350

OPERATION

Simple