The RUNLIN™ R440 Series (similar as 3M Part NO. 8440 Series ) Cold Shrink Connector Insulators R440 Series are open-ended, silicone rubber, tubular sleeves. The sleeves are factory expanded and assembled on a removable supporting plastic core. Each rubber assembly is supplied for field installation in this pre-stretched condition. As the core is unwound, the insulating sleeve shrinks to form a tight seal. Three sizes of Cold Shrink Insulators cover terminal lug barrels and inline connectors. Collectively, the insulators have an application range of 0.35″ (8,86 mm) to 0.95″ (24,13 mm) for installations on #6 AWG to 3/0 AWG.
Primary electrical insulation for all solid dielectric (rubber and plastic) insulated wire and cable splices rated to 1000 volts
Electrical Aircraft cables
For indoor and outdoor use, in cable tray or overhead applications
Top moisture sealing for medium voltage, air insulated connectors and lugs
Insulation of secondary splices, copper and aluminum conductors
Insulation of inline conductor transition connectors
Simple installation requires only workman’s hands
No tools required
No heat required for installation
Seals tight, retains its resiliency and pressure even after prolonged years of aging and exposure
Wide range, size accommodation
Resists acids and alkalies
Resists ozone and ultraviolet light
Resists fluid splashes
Resists fire – will not support flame
Operating temperature range -66ºF to 500ºF ( -55ºC to 260ºC)
Not for specifications. Values are typical, not to be considered minimum or maximum. Properties measured at room temperature 73°F (23°C) unless otherwise stated.
|Physical Property (Test Method)||Typical Value US unit (metric)|
|Color||Grey or Black|
|Die B Tear||1.28MPa|
|Hardness||48 Shore A|
|Part Number||3M Part Number||Cable Range||Application Range
|AWG||Min. Dia. for Seal||Max. Dia.
|[A] Length||[B] Core I.D.|
|R445-2.5||8445-2.5||2 – 1/0||0.37(9.4)||0.720(18.29)||1.7(43)||0.84(21.3)|
|R447-3.2||8447-3.2||1/0 – 3/0||0.49(12.4)||0.950(24.13)||2.3(57)||1.07(27.2)|
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