3M 1161521 Vest-style Climbing Harness Medium Large

Product Description

The 3M 1161521 is a vest-style climbing harness designed for fall protection in construction, tower work, and industrial climbing applications. It features both back and front D-rings for versatile lanyard and positioning attachment points. The tongue-buckle leg connection and pass-through chest connection allow for straightforward donning and adjustment in the field. With a rated weight capacity of 420 lbs., this harness accommodates a wide range of workers. The vest-style design distributes load across the torso and shoulders, reducing fatigue during extended wear. Licensed professionals installing it must verify harness fit per OSHA and ANSI Z359 requirements before each use.

This harness is suited for residential and commercial construction trades, including ironworkers, electricians, HVAC technicians, and general contractors working at height. It is appropriate for use with compatible self-retracting lifelines, shock-absorbing lanyards, and positioning systems. The fixed D-ring configuration makes it a reliable choice for routine climbing tasks on ladders, towers, and structural steel where both dorsal and sternal attachment points are required.

Key Features

• Vest-style design with fixed back and front D-rings for dual attachment capability
• Tongue-buckle leg connection for secure, adjustable lower body fit
• Pass-through chest connection for easy donning and consistent positioning
• 420 lb. weight capacity supports a broad range of users
• Black colorway in Medium/Large sizing
• Replaces legacy part 1191273 for direct OEM-style swap

Compatibility

Direct replacement for 3M Protecta harness part number 1191273. Designed for use with standard fall protection lanyards and self-retracting lifelines that accept D-ring attachment hardware.

Installation Notes

Harnesses must be inspected before every use by a competent person per OSHA 1926.502 and ANSI Z359.1 requirements. Power down or de-energize any adjacent electrical equipment before working at height in electrical trade applications. Verify all buckles and D-ring connections are fully seated and adjusted to a snug fit before applying load. Retire the harness immediately if it has been subjected to a fall arrest event or shows signs of wear, cuts, or chemical damage.

Technical Specifications

• Weight Capacity: 420 lbs.
• Size: Medium/Large
• Color: Black
• D-Ring Style: Fixed, Back and Front
• Leg Connection: Tongue-Buckle
• Chest Connection: Pass-Through
• Product Weight: 3.24 pounds
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 1161521