The Siemens Furnas Electric Co 42BF35AF is a three-pole, 30 A contactor with three normally open Form A main contacts and a 110–120 VAC coil, designed for motor and heavy-load control in industrial panels. As part of the 42DP family (Furnas 42B), it switches up to 600 VAC on the main circuit and uses screw-terminal connections for straightforward wiring in a chassis-mount package. This compact unit weighs about 1.04 lb and measures 3.69 in (H) × 2.38 in (W) × 2.87 in (D), with a typical mechanical life of around 250,000 switching cycles.
