Questions we are actually asked

On both. a is the inside diameter as supplied, published as a minimum. b is the diameter after unrestricted recovery, published as a maximum. The part passes over the larger thing and closes onto the smaller. GHS2-N-612 reads a 27 mm and b 12.4 mm. Every catalogued pair is at boot size chart.

You get a part that fits and never seals. Nothing closes tighter than its own b figure. Working off a alone leaves b wider than the cable, so the adhesive lining touches nothing. From outside, that part looks finished. The same window appears as Ds and Df at breakout size chart.

A breakout works inside the cable, at the crutch, where the cores leave the common sheath. A boot works at the end of the cable, where it meets a connector, a bushing or a bar. Core count picks one; outlet count and geometry pick the other. The full split is at breakout or boot?.

Three. The published boot range covers one outlet, two in GHS2-N, three in GHS3-N-407 and the Y in GHYB-381-1. Past three legs on a multi-core cable nothing is catalogued as a boot, and Insulcore-LV takes over at 2 to 7 core. That chart is at cable breakouts.

No, and each gets ordered for the other. GHRB is a harness connector boot at 120°C: GHRB-111 at a 25.70 mm to b 10.50 mm, GHRB-151 at a 43.00 mm to b 26.00 mm. GRB is a bushing boot at 125°C in non-tracking polyolefin, lined with red mastic; GRB-3 reads s 145 mm to f 72 mm. The vocabulary is settled at boot, breakout, shroud, sleeve.

No. Recovery is a one-way change, and no sheet gives a figure for a second cycle. The part built for repeated removal is the reusable insulating boot in modified silicone rubber. GRRB-1 is the single catalogued row: bushing entry 44.0 mm minimum, cable entry 20.0 mm minimum, bushing band 46 to 70 mm. Its limits are at reusable rubber insulating boots.

Two figures, split by family. The harness boots — GHSB, GHRB, GHYB, GHS2-N and GHS3-N — are published at 120°C. The crutch breakouts and the GRB and GSB bushing boots are published at 125°C. Which family is in your hand matters more than the five degrees. The rest is at installing a boot or a breakout.

No sheet indexed here answers it, because none of them names a tool. The manufacturer's straight boot sheet prints a shrink temperature and stops. What the sheets do publish is margin: heat shock at 250°C for 30 minutes leaves no cracking or dripping to ASTM D2671. Underheating the far side of the part is the failure, not overheating it.

Something about the finished joint, not about the part in the bag. The published wording puts the rating on the system, once the breakout is in position. It rests on the hot-melt lining having run the whole way round. A part on a shelf holds no ingress rating. The wording is quoted at cable breakouts.

Insulators, and the sheets say by how far. Insulcore-LV is published at 12 kV/mm minimum to ASTM D149 and 1 × 10¹⁴ ohm.cm minimum to ASTM D257. The harness boots sit at 10 kV/mm and 1 × 10¹² ohm.cm. One part here is deliberately the opposite: the semi-conductive breakout is specified at 1 × 10⁷ ohm.cm minimum. It is at semi-conductive breakouts.

The material, not the grade. Insulcore-LV is rated to 3.3 kV and stops. Above it sits Insulcore-NT in non-tracking polyolefin, published for 3-core PVC and PILC to 36 kV. Its tracking figure is 3.25 kV held for 20 minutes to ASTM D2303, and the LV part publishes none at all. GAB-0820 to GAB-3060 is nine sizes, every one 3-core. They are listed at anti-tracking breakouts.

Because the chart holds four rows and no others: GCEB2-1 and GCEB2-2 for two cores, GCEB4-1 and GCEB4-2 for four. The bodies run from Ds 47 mm to Ds 70 mm as supplied, working over cable from ⌀17–30 mm up to ⌀32–50 mm. Three-core has no row, and three-core is fifteen of the sixty-nine heat-shrink sizes. The chart is at cold shrink breakouts.

Both appear here, each with its source named. The manufacturer's cold shrink datasheet calls the material silicone/rubber and gives −40°C to 105°C. The product web page calls the same part EPDM rubber, and a second web page gives −40°C to 90°C. Chloride- and sulfur-free is common to all three, as is 14.3 kV/mm. Where a specification turns on either point, the manufacturer settles it.

Not as one item, and caps are not indexed here. This site covers two parts: the crutch breakout and the transition boot. End caps and the other moulded shapes sit in the manufacturer's heat shrinkable moulded shapes range. What a jointing kit contains is a kit question, not a boot question.

Because no datasheet carries one. Every figure on this page came off a published sheet, and those sheets end at dimensions, materials and test methods. A commercial number would be the only thing here with nothing behind it. What a useful enquiry contains is listed at contact.