Cockpit Instrumentation & Lighting
Cockpit Instrumentation
Lamp Holders — Helicopter Cockpit
Press to Test Warning Lamp Holder
Press-to-test warning lamp holder for Chetak and Cheetah
Integral Series IE 39100 Press to Test Warning Lamp Holder used in the Chetak and Cheetah Helicopter cockpit panel. Type Approval No. 249. Optional lens colours: Red, Green and Amber. The body is zinc-yellow-plated brass, contact and terminals are silver-plated brass, the insulating sleeve and base are black Nylon G/F30%, the reflector and bulb holder are electroless-nickel-plated brass, the shield is black neoprene, the lens holder is aluminium alloy with anodised black finish, the lens is polycarbonate and the spring is silver-plated phosphor bronze.
KEY DETAILS
• Series IE 39100 • Type Approval No. 249 • For Chetak and Cheetah cockpit panels • Press-to-test function • Optional lens colours: Red, Green, Amber • Operating voltage 28V DC • Contact resistance 1 Ω max @ 6V DC, 0.1 A • Insulation resistance 20 MΩ @ 500V DC • Insulation strength 1000V rms for 1 min • Net weight 17 g • Operating temperature -40°C to +85°C • Body Ø17.8, height 42.0 mm (max), panel cutout Ø17.0 / Ø13.1 • Materials: zinc-yellow-plated brass body, silver-plated brass contacts, Nylon G/F30% sleeve, electroless-nickel-plated brass reflector, anodised black aluminium lens holder, polycarbonate lens, silver-plated phosphor bronze spring
