3M 7100157127 Positioning Safety Harness 420 Lb Gray

Product Description

The 3M 7100157127 is a full-body positioning safety harness from the DBI-SALA ExoFit X300 series, engineered for workers operating at height in demanding trade environments. Rated to 420 lb load capacity, the harness is constructed with 6,000 lb polyester webbing and lightweight aluminum hardware. Nylon and polyester hybrid comfort padding with reflective panels helps reduce fatigue during extended wear. A locking torso adjustment and quick-connect leg strap buckles allow field workers to achieve a secure, repeatable fit without removing gloves. Licensed electricians, ironworkers, tower climbers, and general construction trades rely on this harness class for daily work-positioning and fall-arrest applications.

The X300 harness is suited for residential and commercial construction, utility work, and industrial maintenance tasks where OSHA-compliant fall protection is required. The dorsal D-ring area incorporates updated geometry to streamline connector attachment and help the wearer confirm harness fit quickly during pre-use inspection. Quick-connect buckle hardware simplifies donning and doffing in environments where workers must repeatedly enter and exit the harness throughout a shift. The gray colorway and zinc-plated finish details are consistent with standard site-issue and personal-purchase configurations.

Key Features

• 420 lb rated load capacity for work-positioning and fall-arrest use
• 6,000 lb polyester webbing construction throughout
• Lightweight aluminum hardware reduces overall carry weight
• Nylon and polyester hybrid padding with reflective ScotchLite panels for low-light visibility
• Quick-connect leg strap buckles for fast, consistent donning
• Locking torso adjustment maintains harness fit during repositioning
• Meets ANSI Z359.11, OSHA 1910.140, and OSHA 1926.502 standards

Compatibility

Designed as an OEM-configuration full-body positioning harness intended for use with compatible dorsal and sternal D-ring connectors, lanyards, and self-retracting lifelines that meet ANSI Z359 and OSHA fall-protection requirements. No specific third-party model compatibility was stated in available product data.

Installation Notes

Donning and inspection must be performed by the wearer before each use in accordance with the manufacturer instructions and site fall-protection program requirements. Power down or de-energize adjacent equipment per applicable OSHA and NEC requirements before beginning work at height near electrical hazards. All connecting hardware such as lanyards, anchorage connectors, and self-retracting lifelines must be inspected and rated for the combined system load before use. Harness fitting, rescue planning, and anchorage selection should be handled by a competent person as defined under OSHA 1926.32.

Technical Specifications

• Load Capacity: 420 lb
• Size: Small
• Webbing Material: Polyester (6,000 lb rated)
• Hardware Material: Aluminum
• Leg Strap Buckle Type: Quick-Connect
• Color: Gray
• Finish: Zinc Plated
• Standards: ANSI Z359.11, OSHA 1910.140, OSHA 1926.502
• Country of Origin: United States

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100157127