The Norman Lamps 52A is a T2 miniature incandescent bulb engineered for reliable, low-current indicator and panel lighting across a wide range of professional and industrial equipment. It operates at 24V with a draw of just 0.003A and 0.072W, making it one of the most energy-conservative incandescent miniature lamps in the T2 slide-base family. The C-2F filament construction delivers stable, consistent light output measured at 500 end foot candles, providing dependable visibility for indicator, signal, and status-light functions.

The compact T2 tubular glass envelope measures 0.86 inches in length and 0.26 inches in diameter, a profile sized precisely for the tight clearances found in telephone switching equipment, control panels, switchboards, relay boards, and instrument arrays. The ANSI #6 Slide base — also designated SL6 — provides secure, tool-free insertion with positive contact in compatible slide sockets, ensuring reliable electrical connection in demanding service environments.

With an average rated life of 8,000 hours, this miniature incandescent lamp is well suited to applications where long service intervals and infrequent relamping are priorities. The C-2F filament design supports dimming, giving circuit designers flexibility to reduce brightness where system conditions allow. Each lamp is sold individually and is ready for direct installation as an original or replacement unit in equipment specifying the 52A or an equivalent 24V T2 ANSI #6 Slide-base miniature incandescent type.

• T2 miniature incandescent bulb, 24V, 0.003A, 0.072W with C-2F filament for steady, low-current indicator and panel light output
• ANSI #6 Slide base (SL6) for secure, tool-free installation in compatible telephone-style and industrial slide sockets
• Compact T2 tubular envelope measuring 0.86 in. length x 0.26 in. diameter for tight-clearance installations
• 500 end foot candles of light output with an average rated life of 8,000 hours
• Dimmable C-2F filament design supports brightness adjustment where circuit conditions allow
• Sold individually; suitable for telephone switching equipment, control panels, switchboards, relay boards, and indicator arrays

Tags: 52a, bulbs