Lightweight Rotary Remote Racking System LV MV HV | CBS Arc Safe RRS-1 LT
Lightweight Rotary Remote Racking System
CBS Arc Safe RRS-1 LT
The RRS-1 LT is CBS ArcSafe’s more compact and lightweight version of the industry-leading RRS-1 universal rotary remote racking system. It is specifically designed for situations where space or weight limitations may prevent the use of the RRS-1. The setup and operation of the RRS-1 LT closely mirror that of the standard RRS-1, allowing users familiar with the RRS-1 to switch between the two systems effortlessly, with no extra training needed.
To meet the design requirements for the RRS-1 LT, CBS ArcSafe had to minimise the size and weight of the unit, therefore decreasing the rating. CBS ArcSafe recommends using the RRS-1 LT primarily on low-voltage circuit breakers requiring no more than 20 lb.-ft. of racking torque.
Thorne & Derrick can provide electrical safety equipment to substation engineers, cable jointers, overhead linesmen and utility workers with PPE to ensure worker safety when carrying out maintenance on LV-HV switchgear, substations, cables and electrical equipment.
CBS Arc Safe RRS-1 LT v RRS-1
While the RRS-1 LT has several differences from the RRS-1, it also retains many of the key features found in the standard RRS-1 model. The RRS-1 LT uses the same dual redundant racking protection system, incorporating both the Current Control Module (CCM) and a mechanical torque limiter, providing users with two layers of protection against equipment damage during racking operations. Additionally, the RRS-1 LT is equipped with an intelligent AC/DC power system, allowing it to operate on either battery or AC power.
Beyond these standard features, the RRS-1 LT also offers some unique advantages not found on the RRS-1. For example, it comes with a two-station high-reach vertical adjustment, capable of reaching breaker racking mechanisms up to 80 inches high. It also includes a wireless remote control, enabling users to operate the unit from as far as 300 feet away.
The RRS-1 LT is particularly well-suited for applications where users need to transport the racking system through tight spaces or up stairways on their own. Its modular design allows for easy breakdown, enabling individual transportation without exceeding a 50-pound load. Whether used on a catwalk above a production floor or in a basement substation, the RRS-1 LT offers a practical solution for challenging environments. It sets a new benchmark for lightweight, portable universal remote racking systems.
Specifications
When compared to the standard RRS-1, the RRS-1 LT sports the following changes:
- The welded steel frame of the RRS-1 has been replaced with a lightweight extruded aluminium frame that supports customization based on specific application requirements.
- The complete RRS-1 unit has been broken down into three modular systems on the RRS-1 LT to reduce the overall size and weight.
- The large drive motor has been upgraded to a compact, brushless, DC gearmotor assembly.
- The height adjustment rail on the RRS-1 has been replaced with a lightweight, manually operated, quick-release slide assembly.
- The control cabinet that houses all of the electronics vital for operation has been integrated into a separate rugged case for simple transportation and storage.
- The large rubber wheels have been upgraded with a smaller and lighter replacement.
Remote Switch Operator
The RSO-IV for the RRS-1 LT is a tightly integrated control cabinet inside of a Pelican case. This allows the RRS-1 LT all of the controls that the RRS-1 control cabinet offers minus the peripheral extensions.
The RSO-IV has the same batteries and charging system as the RRS-1 so that the RRS-1 LT may be used. The RRS-1 LT has the same battery life as the RRS-1 and utilises a custom lighter-weight motor for portability.
- Aluminium Frame
- Transport Handle
- Main Disconnect
- Current Control Module (CCM)
- RSO-IV LT Controller (Legacy Operator Shown)
- AC/DC Power Supply
- Floor Lock
- Rear Wheels
- Slide Rail
- Motor Drive Controller
- Spring-Loaded Drive Head
- Torque Limiter Assembly
- Tether Hooks
- Drive Motor
- Height Adjust Handles
- Front Wheels
CBS ArcSafe RRS-1 LT Benefits & Specifications
- Remote operation places operator outside the arc-flash protection boundary
- Compatible with low-voltage circuit breakers produced by all major switchgear manufacturers
- Use with horizontal and vertical types of air, SF6, and vacuum circuit breakers
- Height and angle of the drive is easily adjusted
- Quick release drive shafts & couplings simplify setup
- Redundant over-racking protection is provided
- Seamless transfer AC/DC power
- Hand-truck design provides easy mobility
- Aids compliance with NFPA 70E relative to protecting personnel by using external circuit breaker rack-out devices
WEIGHT | 135 lbs |
BATTERY LIFE | >50 operations* |
SYSTEM VOLTAGE | 18 V DC |
INPUT VOLTAGE | 120 ±10% V AC, 47-63 Hz†|
MAXIMUM AC CURRENT | 12.2 A |
DRIVE MOTOR POWER | 200 W |
DRIVE ASSEMBLY SPEED | 60 RPM |
CHARGE TIME | Under 60 minutes |
DIMENSIONS | 60″ H x 22″ W x 27″ D |
OPERATING DISTANCE | 300 ft.‡ |
DRIVE MOTOR | 24VDC, 250W, 80 RPM |
MAX OUTPUT TORQUE | 40 ft-lbs |
CHARGING TIME | Under 60 minutes |
WEIGHT | 160 lbs |
LENGTH | 27″ |
WIDTH | 22″ |
HEIGHT | 60″ |
*Number of operations is dependent on the nature of the operation
†May be custom ordered to match different local power standards
‡Standard configuration; contact CBS ArcSafe for other options

Universal Rotary Remote Racking System | Lightweight Rotary Remote Racking System | Dual-Mode Rotary Remote Racking System