Riken Seiki SPS-7A Pressure Switch

Riken Seiki SPS-7A Pressure Switch is a compact, high‑pressure switch designed to monitor hydraulic system pressure and activate control circuits when a preset threshold is reached. It is rated for a maximum operating pressure of 70 MPa (about 700 kgf/cm²), making it suitable for demanding hydraulic circuits where a reliable set point is required. The contact rating is AC 250 V, 3 A, enabling direct interfacing with typical control electronics or PLC inputs. The unit uses a standard G1/2 mounting thread, and an Rc3/8 adapter is available for alternate piping configurations; many SPS models include a 500 mm three‑core lead cable for easy wiring. As part of RIKEN’s SPS family, the SPS‑7A delivers rugged performance in a small footprint and is commonly used to guard hydraulic lines or drive relays and valves in high‑pressure systems such as presses or molding machines, where a precise switching threshold is critical for safety and process control.