3M 4077900223 Rope Grab Mobile Manual Fall Protection

Product Description

The 3M 4077900223 is a mobile and manual rope grab device designed for use on 12 to 14 mm 3-strand rope lifelines. It functions as both an automatic following device and a fixed-position restraint tool, making it suitable for fall arrest, restraint, and work positioning applications. The unit includes a carabiner with a double-action self-closing gate and manual screw-lock closure. A cam lever brake engages automatically under fall-load conditions to arrest movement along the lifeline. At 2.03 pounds, the device is lightweight enough for extended use during elevated work tasks. Installation and operation are handled by qualified fall protection technicians or safety-trained workers operating at height.

This rope grab is intended for vertical and horizontal lifeline applications where hands-free mobility is required. The automatic mode allows the grab to travel freely along the lifeline as the worker moves, while the manual mode locks it in place for restraint or positioning work. The device can be attached or detached at any point along the lifeline without disconnecting from the anchor system, adding flexibility in multi-worker or changing-position scenarios.

Key Features

• Automatically follows user in mobile mode for hands-free vertical and horizontal lifeline travel
• Manual locking option fixes the grab in place for restraint or work positioning
• Double-action self-closing carabiner with manual screw-lock gate for secure connection
• Cam lever brake system locks onto lifeline automatically under fall-load conditions
• Detachable at any point along the lifeline without full system disconnection
• Corrosion-resistant construction suited for varied job site environments

Compatibility

Designed for use on 12 to 14 mm 3-strand rope lifelines. Consult the manufacturer documentation to confirm compatibility with specific lifeline configurations and anchor systems before use.

Installation Notes

This device must be installed and inspected by a competent person trained in fall protection systems in accordance with applicable OSHA and ANSI Z359 standards. Before attaching or removing the rope grab, verify the lifeline is properly anchored and the work area is secure. Do not exceed the rated capacity of the lifeline or anchor point. Inspect the device before each use for wear, corrosion, or damage, and remove it from service immediately if any defect is found.

Technical Specifications

• Compatible Rope Diameter: 12 to 14 mm 3-strand rope
• Weight: 2.03 pounds
• Length: 6.1 inches
• Width: 5.1 inches
• Height: 3.9 inches
• Unit of Measure: Each
• UPC: 00840779002238

Standard Information

• Brand: 3M
• Manufacturer Part Number: 4077900223