How do I know which fire-suppression-tray-unit to use? 1.5m³ or 3.0m³?

For sizing measure the internal volume of the cabinet (WxDxH) in metres. For sizing we do not take into account what equipment is installed in the cabinet as this can change over time. All capacity calculations are based on the cabinet being empty.

For up to 1.5m³ use models: PF/RED/1.5, PN/RED/1.5, VF/RED/1.5 & VN/RED/1.5

For up to 3.0m³ use models PF/RED/3.0, PN/RED/3.0, VF/RED/3.0 & VN/RED/3.0

Example 1: Cabinet dimensions H: 42u/c2.1m x W: 0.6m x D: 0.8m = 1.01m³
Suggested models: PF/RED/1.5, PN/RED/1.5, VF/RED/1.5 or VN/RED/1.5

Example 2: Cabinet dimensions H: 42u/c2.1m x W: 0.8m x D: 1.0m = 1.68m³
Suggested models: PF/RED/3.0, PN/RED/3.0, VF/RED/3.0 or VN/RED/3.0