Cole Hersee Push Pull Switch SPST Off-On 2 Wire

The Cole Hersee Push Pull Switch SPST Off-On 2 Wire is a robust electrical control switch designed for marine, automotive, and industrial applications where reliable on-off functionality is essential. This single-pole, single-throw (SPST) switch operates with a straightforward push-pull mechanism, making it intuitive for operators who need quick, dependable control without complex wiring schemes. Built by Cole Hersee, a trusted manufacturer of marine and automotive electrical components, this switch serves applications ranging from bilge pump activation to auxiliary lighting systems and emergency shutoffs.

The switch features a PVC-coated brass case that provides corrosion resistance and durability in harsh, moisture-prone environments common on vessels and exposed equipment. Its SPST design means one switch controls a single circuit—push to activate, pull to deactivate—with no intermediate positions or complex switching logic required. The two-wire configuration simplifies installation by requiring minimal wiring infrastructure, making it an economical choice for retrofit projects or new builds. Brass construction ensures low electrical resistance and reliable contact integrity across thousands of actuations, while the PVC coating protects against salt spray, humidity, and mechanical wear.

This switch is ideal for marine technicians, equipment operators, and DIY builders seeking a proven, maintenance-free control solution for DC electrical systems. Real-world installations include bilge pump circuits, navigation light controls, auxiliary power distribution, and emergency cutoff stations where tactile, positive feedback is critical for safety. The compact 3 x 2 x 7-inch form factor and lightweight design (0.2 lbs) allow flexible mounting in tight spaces without adding significant weight. Installation is straightforward—simply connect the two wires to your circuit and secure the switch body to your chosen surface using standard fastening methods compatible with the case design.