Schweitzer Engineering Laboratories 932160X Low-Voltage DC Power Supply

The SEL-9321 Low-Voltage DC Power Supply (model 932160X, BIN-1.3.4) from Schweitzer Engineering Laboratories is a tabletop DC-to-DC power supply designed to deliver stable, low-voltage power to communications and instrumentation devices powered from higher-voltage sources or station batteries. The 932160X BIN-1.3.4 variant accepts AC input of 125/250 V at 50/60 Hz, a configuration commonly listed by retailers for this model, and is marketed as a compact, table-top solution in the SEL 9321 family. In practice, the device is used to derive a low-voltage DC output from higher-voltage DC or AC sources, enabling reliable operation of critical electronics in environments where rugged, dependable power is required. The 9321 family is described by SEL as a low-voltage DC power supply line, with 932160X representing a specific BIN/variant within the line, and the product literature emphasizes its role in powering communications and instrumentation gear from a station battery or AC source.