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Unified Limit Switch Assemblies

Unified Limit Switch Assembly Photo

Unified Limit Switch Assemblies provide reliable travel control and safety for enclosed track systems. Designed for use with ETA-4, ETA-5, and ETA-8 profiles, these assemblies are available in single or dual switch configurations to prevent over-travel and ensure precise positioning of trolleys, end trucks, or air balancers. Easy to install and compatible with a variety of applications, they are essential for enhancing system automation and operator safety.

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Features and Benefits

Mounts Directly to Bridge or Runway Rail
These assemblies are designed for easy installation on either bridge or runway rails, streamlining integration into existing Unified enclosed track systems
Compatible with Multiple ETA Profiles
Works with ETA-4, ETA-5, and ETA-8 rail profiles, ensuring broad compatibility across Unified’s crane system configurations
Single and Dual Switch Options
Available in single over-travel and dual limit/over-travel configurations, allowing users to choose the right level of control and safety redundancy for their application
Redundant Safety Capabilities
Dual switch assemblies are ideal for applications requiring redundant safety, with brackets and trip arms designed to ensure consistent switch timing and reliable operation
Specialized Assemblies for Different Trolley Types
CMCO offers tailored assemblies for single or dual end trucks, hoist trolleys, and air balancers, providing precise control and protection for a variety of motion systems

Assemblies: ETA-4/5 | ETA-8

Individual Components: Brackets | Trip Arms

25677 - Single Over Travel Switch Assembly for ETA-4/5/8

Features

Mounts to Bridge or Runwway Rail
Works on ETA-4/8 & 8 Rail

(67001 - Limit Switch sold separately)

Cannot be used with 2 position limit switch when bridge is articulating.

25653 - Dual Limit/Over Travel Switch Assembly for ETA-4/5 Single End Truck or Hoist Trolley

Switch Hole Pattern (Click to Enlarge)

Features

Kit contains bracket, festoon trolley and trip arm
Switches face each other so levers are as close to each other as possible; allows for consistent siwtch timing.
Used when dual switches are required for redundant safety.

(67001 - Limit Switches sold separately)

25651 - Dual Limit/Over Travel Switch Assembly for ETA-4/5 Dual End Truck or Hoist Trolley

Switch Hole Pattern (Click to Enlarge)

Features

Kit contains bracket, festoon trolley and trip arm.
Switches face each other so levers are as close to each other as possible; allows for consistent switch timing.
Used when dual switches are required for redundant safety.

(67001 - Limit Switches sold separately)

25679 - Dual Limit/Over Travel Switch Assembly for ETA-8 Single End Truck or Hoist Trolley

Switch Hole Pattern (Click to Enlarge)

Features

Kit contains bracket, festoon trolley and trip arm.
Switches face each other so levers are as close to each other as possible; allows for consistent switch timing.
Used when dual switches are required for redundant safety.

(67001 - Limit Switches sold separately)

25678 - Dual Limit/Over Travel Switch Assembly for ETA-8 Dual End Truck or Hoist Trolley

Switch Hole Pattern (Click to Enlarge)

Features

Kit contains bracket, festoon trolley and trip arm.
Switches face each other so levers are as close to each other as possible; allows for consistent switch timing.
Used when dual switches are required for redundant safety.

(67001 - Limit Switches sold separately)

25676 - Dual Limit/Over Travel Switch Assembly for Air Balancer

Switch Hole Pattern (Click to Enlarge)

Features

Kit contains bracket, festoon trolley and trip arm.
Attaches to ETA-4/5 & 8 Balancer Trolleys.
Ideal for 2 position switches.
Keeps trip arm aligned when used with articulating bridge.
Works on all Unified Air Balancers.

(67001 - Limit Switches, Balancer trolley sold separately)

Brackets

25670 - Single Limit/Over Travel Switch Bracket

Features

Mounts to Bridge or Runway Rail
Works on ETA-4/5 & 8 Rail

(67001 - Limit Switch sold separately)

25669 - Dual Limit/Over Travel Switch Bracket ETA-4/5/8

Switch Hole Pattern (Click to Enlarge)

Features

Mounts to Bridge or Runway Rail
Switches face each other so levers are as close to each other as possible; allows for consistent switch timing.
Used when dual switches are required for redundant safety.

(67001 - Limit Switches sold separately)

25661 - Dual Limit/Over Travel Switch Bracket for Channel Cap ETA-4/5/8

Switch Hole Pattern (Click to Enlarge)

Channel Cap Drilling Guide (Click to Enlarge)

Features

Mounts to Channel Capped Bridge or Runway Rail
Switches face each other so levers are as close to each other as possible; allows for consistent switch timing.
Used when dual siwtches are required for redundant safety.

(67001 - Limit Switches sold separately)

25654 - Dual Limit/Over Travel Switch Bracket ETA-4/5/8 (Alternate Version)

Features

Mounts to Bridge or Runway Rail
Switches face forward; allows for consistent switch timing.
Used when dual switches are required for redundant safety

(Limit Switches sold separately)

Trip Arms

25675 - Single Limit Switch Trip Arm

Features

Mounts to Bridge or Runway Rail
Kit includes trip arm
Works on ETA-4/5 & 8 Rail

25664 - Trip Arm (Dual Switch) for ETA-4/5 Single End Truck or Single Hoist Trolley

(Shown attached to single end truck)

(Shown attached to single hoist trolley)

Features

Kit includes festoon trolley and trip arm.
Attaches to ETA-4/5 Dual End Truck or Hoist Trolley.
Ideal for 2 position siwtches.
Keeps trip arm aligned when used with articulating bridge.

(End truck or Hoist trolley sold separately)

25663 - Trip Arm (Dual Switch) for ETA-4/5 Dual End Truck or Dual Hoist Trolley

(Shown attached to dual end truck)

(Shown attached to dual hoist trolley)

Features

Kit includes festoon trolley and trip arm.
Attaches to ETA-4/5 Dual End Truck or Hoist Trolley.
Ideal for 2 position siwtches.
Keeps trip arm aligned when used with articulating bridge.

(End truck or Hoist trolley sold separately)

25674 - Trip Arm (Dual Switch) for ETA-8 Single End Truck or Single Hoist Trolley

(Shown attached to single end truck)

(Shown attached to single hoist trolley)

Features

Kit includes festoon trolley and trip arm.
Attaches to ETA-8 Single End Truck or Hoist Trolley.
Ideal for 2 position switches.
Keeps trip arm aligned when used with articulating bridge.

(End truck or Hoist trolley sold separately)

25668 - Trip Arm (Dual Switch) for ETA-8 Dual End Truck or Dual Hoist Trolley

(Shown attached to dual end truck)

(Shown attached to dual hoist trolley)

Features

Kit includes festoon trolley and trip arm.
Attaches to ETA-8 Single End Truck or Hoist Trolley.
Ideal for 2 position switches.
Keeps trip arm aligned when used with articulating bridge.

(End truck or Hoist trolley sold separately)

25667 - Trip Arm Assembly (Dual Switch) for Air Balancer

Features

Contains trip arm only.
Attaches to ETA-4/5 & 8 Balancer Trolleys
Ideal for 2 position switches.
Keeps trip arm aligned when used with articulating bridge.
Works on all Unified Air Balancers.

(Balancer trolley sold separately)