Safety Direct MH501 MaxVis Royal Guard Derrick Harness | Canada
Safety Direct MH501 MaxVis Royal Guard Derrick Harness instructions and documents
Safety Direct's own documents. Read the instructions before first use.
Safety Direct MH501 MaxVis Royal Guard derrick harness. The Royal Guard Plus is Safety Direct's premium oil and gas derrick harness for monkey board and tubing board workers, built for Canadian weather. This MaxVis listing covers the Hi-Vis webbing versions: MH501MV with dorsal, front, side and centre-back D-rings, and MH501MVA without the front D-ring, each with a sit strap, tongue-buckle legs and an optional permanently attached energy-absorbing dorsal extension.
Safety Direct MH501 MaxVis Royal Guard derrick features
- Hi-Vis (MaxVis) webbing for visibility on the rig floor and derrick
- Dorsal D-ring, 2 side positioning / descent control D-rings and centre-back D-ring
- Front D-ring on MH501MV; MH501MVA has no front D-ring
- Sit strap with 2 D-rings for monkey board and tubing board work
- Pass-through chest buckle, tongue-buckle legs, fall arrest indicators
- Corrosion-resistant hardware; optional permanently attached EA dorsal extension
Safety Direct MH501 MaxVis derrick harness specifications
| Manufacturer | Safety Direct Ltd., Sherwood Park, Alberta |
|---|---|
| Model | MH501MV / MH501MVA MaxVis Royal Guard (16 SKUs) |
| Standard | CSA Z259.10-18 (per Safety Direct, MH501 line) |
| Class | MH501MV Class ADLP; MH501MVA Class AP (per catalogue) |
| D-rings | Dorsal, 2 side, centre back, sit strap D-rings; front D-ring on MV only |
| Hardware | Corrosion resistant; pass-through chest, tongue-buckle legs |
| EA dorsal extension | -EA versions: permanently attached; 310 dorsal on S/M and U, 420 dorsal on L/XL and 2XL |
| Capacity | Catalogue user capacity: MH501MV S/M 310 lb, U 310 lb, L/XL 200-420 lb, 2XL 210-370 lb; MH501MVA S/M 110-190 lb, U 115-250 lb, L/XL 200-420 lb, 2XL 210-370 lb; EA versions S/M and U 110-310 lb (310 dorsal), L/XL and 2XL 200-420 lb (420 dorsal). Maker page: 420 lb (191 kg) harness capacity. |
| Sizes | S/M, U (Universal), L/XL, 2XL |
Where the MH501 MaxVis derrick harness works best
Monkey board
Sit strap and side D-rings for long shifts aloft.
Tubing board
Positioning D-rings for hands-free work.
Night and winter rigs
Hi-Vis webbing is easy to spot.
Rescue-ready rigs
Front and centre-back D-rings for descent.
MH501 MaxVis derrick harness questions and CSA status
Is the Safety Direct MH501 MaxVis CSA certified?
Safety Direct states the MH501 Royal Guard Plus derrick harness is certified to CSA Z259.10-18. The 2026 catalogue lists the MaxVis MH501MV as Class ADLP and MH501MVA as Class AP. Check the label on the Hi-Vis version for the CSA mark.
What is the difference between MH501MV and MH501MVA?
MH501MV has a front D-ring (Class ADLP); MH501MVA has no front D-ring (Class AP). Both have dorsal, side and centre-back D-rings and a sit strap.
What does -EA mean on the MH501 MaxVis?
It adds a permanently attached energy-absorbing dorsal extension: a 310 dorsal on S/M and Universal, a 420 dorsal on L/XL and 2XL.
What sizes does the MH501 MaxVis come in?
S/M, Universal, L/XL and 2XL. Catalogue user capacity: MH501MV S/M 310 lb, U 310 lb, L/XL 200-420 lb, 2XL 210-370 lb; MH501MVA S/M 110-190 lb, U 115-250 lb, L/XL 200-420 lb, 2XL 210-370 lb; EA versions S/M and U 110-310 lb (310 dorsal), L/XL and 2XL 200-420 lb (420 dorsal). Maker page: 420 lb (191 kg) harness capacity.
Pair the MH501 MaxVis derrick harness with a full system
Pair the Royal Guard with a self-retracting device or derrick lanyard and a rated anchor, plus a positioning lanyard on the side D-rings.