MSA 415865, User Instructions

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Use
Rope Grab Subsystem
US
3.5 Free Fall Distance, Total Fall Distance, and System Elongation
Fig. 3 Fall Arrester (Rope Grab) with Lanyard and Shock Absorber
Do not exceed free fall distance specified by applicable regulations and standards. To calculate the total fall
distance, sum the following:
Rope Part Number
Condition R512539 R512544 SRP9200 SRP9300 SRP7082 SRP120580
Wet 3.33% @
900 lbf (4 kN)
2.30% @
900 lbf (4 kN)
2.63% @
900 lbf (4 kN)
2.63% @
900 lbf (4 kN)
6.15% @
900 lbf (4 kN)
1.50% @
900 lbf (4 kN)
Dry 3.33% @
900 lbf (4 kN)
2.35% @
900 lbf (4 kN)
2.13% @
900 lbf (4 kN)
2.13% @
900 lbf (4 kN)
5.40% @
900 lbf (4 kN)
1.50% @
900 lbf (4 kN)
WARNING
Use ONLY an MSA integral or separate shock absorbing lanyard to connect the fall arrester to the
dorsal D-ring of the harness. The length of the lanyard must comply with applicable agency stan-
dards as defined in Section 1.2.1 of this User Instruction manual. Misuse can result in death or
serious injury. Consider the elongation of the fall arrester when determining the adequate clearance
to obstructions or grade in the event of a fall; otherwise, the clearance may be insufficient, resulting
in death or serious injury.
1 Rope Grab Assembly 3 Shock Absorber
2 Web Lanyard 4 Connector
Example:
2x length of the rope grab (found on label) 2 x 36” = 72”
shock absorber extension (found on label) 42” extension
stretch in rope at 1800 lbf
(found on label and in this user instruction) 30’ rope x 0.0666 = 24”
3ft safety margin 36”
Total Fall Distance Total Fall Distance = 174” or 14.5ft
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