177632M is a 1 Pole 12 Position Binary thumbwheel switch from EECO's 1776 Series, designed for applications requiring binary output encoding. The switch features 8 switching positions with a B04 binary output code, providing reliable position detection and encoding. It operates with a minimum life of 1,000,000 detents at 10 mA and 5 VDC at +25°C, and supports a maximum switching load of 125 mA at 28 VDC or 115 VAC. The switch is constructed with polycarbonate housing per Federal Spec LP-393A, gold over nickel plated contacts, and glass epoxy circuit disc, ensuring durability and corrosion resistance. It operates reliably across a temperature range of -20°C to +75°C and is fully RoHS compliant and lead-free. The 177632M is ideal for industrial control panels, test equipment, and instrumentation systems where binary code selection and long-term reliability are essential.