Chance Temporary Load Disconnect Tools
8.3/15kV & 15/27kV applications*

Both models include protective carrying case and illustrated operating and maintenance instructions.

Features & Applications

• Available in two sizes
• Provides a temporary means of connecting and disconnecting equipment or circuits under load conditions
• Design does not have a fuse and does not provide protection for fault or overcurrent conditions
• Insulated bushing and hot parts are from Chance Type C-Polymer cutouts, including tubular copper disconnect blade
• Arc-chute-type interrupter gives tool excellent loadbreak capability
• To interrupt load currents, device employs a stainless steel auxiliary blade within Delrin® arc chute
• Tool simply clamps onto primary conductor with a Grip-All clampstick. Bronze stud at lower end accepts clamp on temporary tap jumper

Operation

• Self-contained loadbreak device operates by simple disconnect stick
• No special or portable tools are required to operate unit
• To break current, insert a disconnect stick into operating ring and rapidly open device
• When opening, spring-loaded auxiliary blade snaps out through the arc chute to elongate, cool and extinguish the confined arc
• Loadbreaking operation is independent of the disconnect stick speed
• To provide a clearly visible break, the disconnect blade hangs in approximately a vertical position
• Unfused or unswitched loads can be disconnected by first installing this tool and a temporary bypass jumper in parallel with permanent tap connection
• After closing tool blade, the permanent tap can be disconnected
• The load can then be dropped or reconnected by operating blade tool
• It should never be closed into a fault or opened during a fault

Specifications (both models)

Max. loadbreak current: 300 amps
Max. momentary rating: †12,000 asym amps

†This is a pass-through fault-current rating only. The tool should never be opened or closed when the current exceeds the maximum continuous load current of 300 amps.

Main line range minimum: #6 solid copper (0.162″ dia.)
Main line range maximum: 1033 kcmil ACSR (1.25″ dia.)
Tap stud: 1⁄2″ diameter