Indicator Light S 51 B

The S 51B indicator light is a panel-mounted indicator light featuring a dome-shaped, convex lens with a diameter of 7.05 mm and a terminal connection; it is used as a status indicator on panels for home appliances, heating and ventilation equipment, and industrial machinery.

The S51B indicator light is an indicator light with a Ø7.05 mm convex lens that is mounted by inserting it into a Ø6 mm hole drilled in the panel. The dome-shaped convex lens profile, with a radius of R3.65, protrudes noticeably from the panel surface, ensuring the indicator is clearly visible from wide angles. The 10.2 mm-high fluted lens is slip-fit onto the body with an inner diameter of Ø5.8 mm and is available in various colors depending on the device design. This product is the terminal-equipped version of the S51 series: it has a body diameter of Ø9.5 mm and a body length of 33.3 mm, with a total length of 57.8 mm including the terminal. The flexible wings on the body allow for screwless, one-step mounting on panels with thicknesses ranging from 0.8 to 3 mm.

With operating voltage options of 12(14) V, 24(28) V, 110 V, 240 V, and 400 V AC/DC, and a temperature resistance of up to 150 °C, making it safe for use in panels for home appliances, small household appliances, heating and ventilation equipment, and industrial equipment. With neon or LED light sources, PC/PSU housing materials, and a wide range of lens colors—including natural, red, yellow, and green—it offers a signal lamp solution suitable for any device design. Connection is made via a 6.3 x 0.80 mm or 4.8 x 0.80 mm tab terminal; this design allows for quick and secure installation without the need for soldering.

The S51B Indicator Light is designed for devices operating at high temperatures and high voltages, with a temperature rating of 150 °C and an operating voltage of up to 400 V.

The product is designed and tested in accordance with the requirements of the relevant safety standards. With temperature class options of 150 °C and 120 °C, and voltage resistance up to 400 V, it meets the safety criteria required for household appliances and industrial equipment that operate continuously and unattended.

GENERAL FEATURES
Product Name S 51B
Category Terminal
Panel Size Ø6 mm
Panel Thickness 0.8–3 mm
Voltage 12(14) V / 24(28) V / 110 V / 240 V / 400 V (AC / DC)
Temperature 150 °C / 120 °C
Connection Type Terminal
Cable Type None
Terminal Type 6.3 x 0.80 mm / 4.8 x 0.80 mm Tab Terminal
Light Type Neon / LED
Housing Material PC / PSU
Lens Colors Natural / Red / Yellow / Green (+7)