Blitz Fire-Rated Containment

Blitz Fire-Rated Containment is a set of nine tested systems of cable containment hung on threaded rod or fixed to a concrete or steel substrate. The data sheet gives its application as internal and external installations of electrical and data fire-rated cable containment. The systems are BH10FR (BT3 or BT5 cable tray on the Blitz LT Hanger), BM15FR (BM50 mesh), BT25FR and BT50FR (BT3 or BT5 cable tray), BLN2FR, BLN3FR and BLN4FR (Nema 2, 3 and 4 fire-rated ladder), BLVFR (Nema 2 fire-rated ladder mounted vertically to a concrete or steel substrate) and BLHFR (Nema 4 fire-rated ladder mounted on edge to a concrete or steel substrate).

What this listing does

Select the tested system, then the containment, width and tested arrangement listed for it, and enter the cable load in kg/m. Only the containment, widths and arrangements printed for the selected system are offered. BT25FR is printed with two combinations of load and support span, which are offered as the 1.5 m span and the 1.0 m span. The listing returns:

• The tray, mesh or ladder code for the selected containment and width.
• The kit code from the Ordering Details, where one is printed.
• The rod centres printed for the selected width.
• The tested load, the support span and the threaded rod diameter.
• The length and the stacking, as printed.
• A check of the cable load against the tested load, reading Within tested or Exceeds tested.
• Tables of the load performance, codes, rod centres and ordering details of the selected system, the BT3 and BT5 tray sections as labelled, the accessories, and the surface protection and compliance lines.

Tested loads

All values are as printed on the manufacturer's data sheet. The data sheet states: Blitz Fire-Rated containment has been engineered, independently tested and certified to AS/NZS3013:2005 Appendix C Classification WS5X (2 hours) by a NATA accredited facility. It gives no test report number, date or laboratory.

• BH10FR: 10 kg/m per tier at a 1.5 m support span on 10 mm threaded rod, up to 2 tiers, for 150 mm BT3 or BT5 tray. Rod centres 185mm.
• BM15FR: 15 kg/m at a 1.0 m support span on 12 mm threaded rod, stacking printed as Single, for 150 and 300 mm BM50 mesh. Rod centres 260mm and 405mm.
• BT25FR: 17.5 kg/m per tier at a 1.5 m support span, or 25 kg/m per tier at a 1.0 m support span, on 12 mm threaded rod, up to 2 tiers, for 150 and 300 mm BT3 or BT5 tray. Rod centres 260mm and 405mm.
• BT50FR: 50 kg/m per tier at a 1.0 m support span on 12 mm threaded rod, up to 2 tiers, for 150, 300, 450 and 600 mm BT3 or BT5 tray. Rod centres 270mm, 420mm, 560mm and 735mm.
• BLN2FR: 50 kg/m for a single tier, or 40 kg/m per tier for up to 2 tiers, at a 1.5 m support span on 12 mm threaded rod, for 150, 300, 450 and 600 mm Nema 2 fire-rated ladder.
• BLN3FR: 60 kg/m for a single tier, or 50 kg/m per tier for up to 2 tiers, at a 1.5 m support span on 12 mm threaded rod, for 150, 300, 450 and 600 mm Nema 3 fire-rated ladder.
• BLN4FR: 70 kg/m for a single tier at a 1.5 m support span on 12 mm threaded rod, for 150, 300, 450 and 600 mm Nema 4 fire-rated ladder.
• BLN2FR, BLN3FR and BLN4FR: rod centres 270mm, 420mm, 560mm and 735mm. The data sheet prints ladder codes only for these systems, so the kit code reads None printed.
• BLVFR and BLHFR: 50 kg/m at a 1.0 m support span on 12 mm threaded rod, for 150, 300, 450 and 600 mm ladder. The data sheet does not state the stacking or the rod centres for these mountings and does not define the support span. The listing shows Not stated and Not given.
• The cable load entered is compared with the single tested load printed for the selected configuration, per tier where the Load Performance table says so. No utilisation is shown and no margin is implied.
• The support span is the span printed with the tested load. It is not an input, and no value is interpolated or extrapolated.
• BT5 tray appears on this data sheet only. No BT5 data sheet has been supplied, so no weight, dimension or load data for it other than the values shown here is available.
• Two sets of descriptions look inconsistent and are published as printed with a note: the 150FR Support Kit for BT50FR-BT3150, where the other BT50FR kits are printed with an HDFR Support Kit, and the 150mm x 6mtr descriptions of all BLVFR and BLHFR kits, whatever the width in the kit code. Both are under query with the manufacturer.
• Ladder length is printed as 3m / 6m, and 3.0m / 6.0m for BLVFR and BLHFR. The data sheet lists 6mtr ladder codes only.

Finish

• The data sheet lists under Surface Protection and Compliance: Hot Dip Galvanised to AS/NZS 4680:2025, Progal360 Continuously Galvanised to AS1397:2011 and Pre-Galvanised to AS1397:2011.
• BH10FR, BM15FR, BT25FR and BT50FR kits: Pre-Galvanised/ProGal 360. The data sheet states that powder coating is available on request.
• Nema 2, 3 and 4 fire-rated ladders and the BLVFR and BLHFR kits: Hot Dip Galvanised.

Limits

• The test statement applies to the configurations printed on the data sheet. The listing offers those configurations only and makes no claim for any other containment, width, load, support span, threaded rod, tier arrangement or mounting.
• The data sheet does not give a test report number, date or laboratory.
• No utilisation is given and no value between the printed loads and spans is offered.
• No weights are given for the fire-rated ladders or the support kits, and the contents of the kits are not listed beyond the descriptions shown.
• The ladder section drawings carry dimensions without labels. They are not published.
• The data sheet does not state which accessories formed part of each tested system. It prints the hold down plate as FCS-HDP-G on the system pages and as FCS-HDP on the accessories page.
• Values from other Blitz Systems data sheets are not combined with these.
• Threaded rod, anchors, fixings to the structure, the supporting structure, the cables and any fire stopping are not checked.
• Confirm the scope of the fire test evidence with Blitz Systems.
• Preliminary selection only. Confirm the final design with Blitz Systems.