Load Break Tools Compared, Plus How to Make a Parallel with the BREAK-SAFE

September 15, 2020

Load Break Tools Compared, Plus How to Make a Parallel with the BREAK-SAFE

A load break tool lets a lineman open or close a circuit under load with a hot stick, without an outage. Utility Solutions makes two families. The LOAD-RANGER hooks onto the arcing horn and fuse ring of a hook-equipped switch or cutout. The BREAK-SAFE adds a portable switch to a mechanical jumper for load break, continuous current and load pick-up.

Which Load Break Tool Fits the Job?

ToolSystem voltageCurrent ratingWeightBest for
BREAK-SAFE15, 27, 38 and 46 kV300 A (200 A at 46 kV)6 lb 3 oz to 10 lb 3 ozLoad break, load pick-up and continuous current in a portable jumper
BREAK-SAFE 60027 kV600 A12 lb 3 ozHigh-current jumpers, with dual conductor bars for parallel jumpers
LOAD-RANGER FLEX-LT27 and 38 kV900 A4 lb 10 oz to 5 lb 5 ozHook-equipped switches and cutouts, with a head that rotates 180 degrees
LOAD-RANGER XLT27 and 38 kV900 A4 lb 3 oz (XLT-1), 4 lb 12 oz (XLT-2)Same devices, with a fixed head and machined parts

What Does Each One Handle?

LOAD-RANGER (FLEX-LT and XLT)BREAK-SAFE
Connects toArcing horn and fuse ring of hook-equipped disconnects, cutouts, switches and power fusesMechanical jumper, with a floating or duckbill head
Rated forUp to 34.5 kV and 150 BIL or less15 to 46 kV (see the catalog table)
BreaksCable charging, line charging and transformer magnetizing current (transformers over 5% load)Load break, load pick-up and continuous current
Also doesSingle capacitor banks, and padmount gear up to 25 kV with the -E or -P versionTakes conductors from #6 copper to 954 ACSR (1.1 in.); the 600 takes up to 3.5 in.
LimitsThe 38 kV models should not be used inside padgear or cabinetsThe 38 kV, 46 kV and 600 models need a product verification form before ordering

The FLEX-LT head rotates, which cuts down binding positions, and it can go on either horn. The XLT has a fixed head, and Utility Solutions says to install it on the horn opposite the operator.

BREAK-SAFE Limits From the Manual

TopicWhat Utility Solutions says (manual B-01031, 9-18-24)
Intended useA jumper clamp that works like a portable switch on overhead distribution lines, with an appropriately rated and approved jumper cable. It is for temporary connections only and is not a fuse.
Ratings300 A at 15, 27 and 38 kV; 200 A at 46 kV; conductors from #6 copper to 954 ACSR
TestingTested to the full voltage and amperage rating at 70% to 80% power factor, for both load break and load make
Voltage choiceRated by system voltage. Use a 15, 27, 38 or 46 kV tool for system voltages at or below that class.
PhasesDesigned for three phase systems, but used on one phase at a time. Typical three phase work needs three tools.
Floating head (-1)Installed and removed with approved rubber gloves and PPE
Duckbill head (-2)Installed and removed with an approved insulated hot stick
Load break and pick-upAll models need an approved insulated hot stick for these operations
Do not use itPhase to phase, to switch unloaded transformers, to switch capacitor banks, or where ferroresonance can cause over-voltage
WeatherNot waterproof. Do not use it in wet conditions, and cover it with an insulating rubber blanket if bad weather is expected.
After each load breakRemove the tool or the jumper from the conductor bar. The tool is not rated insulation and is not a visible gap.
MaintenanceService every 2 years, sooner for frequently used tools or tools used near their maximum ratings
StorageClean, dry place, in the LOCK CLOSE position, in a soft or hard case
WarrantyOne year against manufacturing defects

BREAK-SAFE: How It Works, a video from Utility Solutions.

BREAK-SAFE Catalog Numbers

Catalog numberHeadVoltageRatingWeightClosed / open length
USBS-15-1-PSFloating15 kV300 A7 lb 3 oz24 / 28 in.
USBS-15-2-PSDuckbill15 kV300 A6 lb 3 oz28 / 32 in.
USBS-27-1-PSFloating27 kV300 A7 lb 10 oz28 / 33.5 in.
USBS-27-2-PSDuckbill27 kV300 A7 lb32 / 37.5 in.
USBS-38-1-PSFloating38 kV300 A8 lb 6 oz33 / 41 in.
USBS-38-2-PSDuckbill38 kV300 A7 lb 12 oz37 / 45 in.
USBS-46-1-PSFloating46 kV200 A10 lb 3 oz42.5 / 53.5 in.
USBS-46-2-PSDuckbill46 kV200 A9 lb 9 oz46.5 / 57.5 in.
USBS-600-1Floating27 kV600 A12 lb 3 oz33 / 40.5 in.

LOAD-RANGER Catalog Numbers

Catalog numberVoltageConfiguration
USLR-FLEX-1-H27 kVOverhead arm, hard case, 900 A
USLR-FLEX-1-C-H27 kVWith counter, hard case
USLR-FLEX-2-H38 kVHard case
USLR-FLEX-2-C-H38 kVWith counter, hard case
USLR-FLEX-1-P-H27 kVPadmount arm, extended hood, hard case
USLR-FLEX-1-C-P-H27 kVPadmount arm, with counter
USLR-XLT-1-H27 kVWith counter and hard case
USLR-XLT-1-NC-H27 kVNo counter, hard case
USLR-XLT-1-H-E27 kVWith counter, hard case and extension hood
USLR-XLT-1-P-H27 kVCounter, extension hood, padmount arm, hard case
USLR-XLT-2-H38 kVWith counter and hard case

Using a LOAD-RANGER: hook onto the arcing horn first, then the fuse ring. Pull in a smooth, steady motion until the tool is fully extended and the load breaks. Rotate it up to release the ring, lift it off the horn, and reset it.

Before Each Use: FLEX-LT and XLT Gen 2 Inspection

Utility Solutions publishes a field inspection guide (B-02364, 7-24-26) for the LOAD-RANGER FLEX-LT and XLT Gen 2. It says to run these checks before every use and to remove the tool from service right away if it fails any of them.

StepCheckWhat you should see
1Fully extend the tool and inspect the yellow tubeNo damage, cracks or discoloration
2Check the black gasketFully tightened
3Check the upper and lower conductor pathsTight and secure
4FLEX-LT only: pivot the flex head side to sideRotates freely 90 degrees each way and returns to its original position
5Work the clip assemblyAll parts pivot smoothly and return fully to their original position
6Work the arm assembly side to side, then front to backParts pivot smoothly and return fully to their original position
7Press the red reset trigger, then check continuityContinuity breaks when the tool is fully extended
8Pull the hook loop to extend the tool 2 to 3 inches and releaseThe tool rebounds quickly with felt spring pressure, which shows it reset properly

How to Make a Parallel With the BREAK-SAFE

A parallel is a temporary circuit that lets a crew keep customers on while the permanent line is opened or repaired. Traditional methods use several tools and take longer. The BREAK-SAFE is a single hot stick operated tool that does the load pick-up, carries the load, and then does the load break. It is a jumper clamp that works like a portable switch, with an appropriately rated and approved jumper cable. It is for temporary connections only and it is not a fuse.

FunctionWhat it means
Load pick-upEnergizes the jumper circuit under load, using a hot stick
Continuous current dutyCarries the load while the permanent circuit is out
Load breakOpens the parallel circuit under load, using a hot stick

Before You Start

CheckWhat to do
RatingDo not exceed the tool's voltage or current rating. Use a tool at or above your system voltage.
Pole and conductorInsulate them as your utility's safety practices require
ConductorClean it at each attachment point, and clean and inspect the conductor bar before attaching the jumper
Duckbill headIf your model is a -2 duckbill, make sure the attachment fasteners are tight
Field inspectionFollow the laminated Field Inspection Procedure card before each use

Steps to Make the Parallel

These steps follow Utility Solutions' manual B-01031. Always follow your own utility's work rules too.

StepWhat to do
1Lift the Yellow Safety Lock to UNLOCK, pull the Load Break Ring until the tool locks open (the yellow tube is visible), then lower the lock to LOCK OPEN to prevent an accidental pick-up
2Attach the tool, in LOCK OPEN, to the source side of the circuit using standard utility practices
3Attach one end of an appropriately rated and approved jumper cable to the load side of the circuit
4Attach the other end of the jumper to the tool's conductor bar. Do not let the jumper pull sideways on the tool, and leave enough slack for it to hang straight down
5Check all connections and the placement of the tool and jumper
6With an approved insulated hot stick, lift the Yellow Safety Lock to UNLOCK, and push down steadily on the Load Pick-up Trigger. The ring retracts forcefully and energizes the circuit. Never do this by hand
7Push up on the Load Break Ring with the hot stick to check that the brass contacts are fully seated
8Right away, lower the Yellow Safety Lock to LOCK CLOSE to prevent an accidental load break

The parallel is now made. The permanent circuit can be disconnected or cut, following standard safety practices, while maintenance is done.

Steps to Break the Parallel

StepWhat to do
1With a hot stick, lift the Yellow Safety Lock to UNLOCK
2Push up on the Load Break Ring to check that the tool is reset
3In one steady motion, pull the ring down firmly until the tool locks open. Do not stop or hesitate
4Right away, lower the Yellow Safety Lock to LOCK OPEN
5Check that there is no voltage and no current on the tool and the jumper
6If the source side must stay energized, move the jumper to the conductor bar of a Utility Solutions Jumper-T (USJT-001/2) or equivalent. That makes a visible gap with rated insulation
7To re-energize, repeat the process from attaching the jumper to the conductor bar. If not, remove the tool and the jumper
8Store the tool in the LOCK CLOSE position

A Real Example

Utility Solutions' application note "Making Parallels: Thermal Imaging vs Hot Spots" (Jon Spencer, 9-23-24) describes a crew that had cut permanent jumpers open to isolate a system in a storm and then spliced them back together. A preventative maintenance thermal scan later flagged the crimp connections as hot spots. The crew made a parallel with the BREAK-SAFE, removed and repaired the spliced jumpers without an outage, and then broke the parallel with the tool's load break. The note gives no temperatures or measurements.

Resistance Test

Between scheduled service, Utility Solutions describes an optional resistance test with its USGT-600 Grounds Tester or an equivalent. With the tool closed and reset, and 300 A flowing, the voltage drop from the conductor hook to the parking stand should not exceed 0.220 volts. If it does, take the tool out of service. This test does not replace scheduled service.

FAQ

Can a load break tool be used on loadbreak elbows?

The LOAD-RANGER is for hook-equipped devices. Tools that insert loadbreak bushings are a different product.

How often should it be inspected?

Utility Solutions says every 2 years, plus a check before each use. Remove the tool from service if it fails.

Does the counter show tool life?

It is a reference only. Spring fatigue starts after roughly 1,500 to 2,000 operations.

Can I use the 38 kV LOAD-RANGER inside a padmount?

No. Utility Solutions says not to, even with an extended hood.

What is a parallel?

A temporary circuit that keeps customers on while the permanent line is opened or repaired.

Can the BREAK-SAFE stay on permanently?

No. It is for temporary use only and it is not a fuse.

Who can use it?

Utility Solutions says only trained and qualified personnel should operate, inspect and maintain it.

How do I see that the circuit is open?

The BREAK-SAFE is not a visible gap. Move the jumper to a Jumper-T or equivalent to make one.

Where to Buy

Contact Powertech Associates at info@powertech-upsc.com or (860) 678-8772. Tell us the voltage and current and we will match the tool.

Learn more from Utility Solutions: load break tools, BREAK-SAFE, BREAK-SAFE 600, LOAD-RANGER XLT, LOAD-RANGER FLEX-LT, operation manual C-02311, field guide B-02364, BREAK-SAFE manual B-01031 and the Making Parallels application note.

Last updated: November 2026.

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