Schrader Bellows K045302349 Electrical Pressure Switch

Schrader Bellows K045302349 electrical pressure switch, a Parker Schrader Bellows product, is a 0–130 psi pressure-sensing device designed for industrial automation. It combines a bellows-based sensing element with an electrical switch that operates from a 24 VDC supply and draws 9 watts, making it suitable for direct integration with PLCs and relay logic. The model designation 3NOI LOC indicates three normally open contacts within a single housing, providing flexible wiring options for signaling multiple control circuits. The unit monitors system pressure in pneumatic or hydraulic lines and can trigger control actions, alarms, or interlocks when the pressure reaches its setpoint. Its compact, rugged construction is intended for mounting in panels or on equipment where space is limited, and its 24 VDC operation aligns with common industrial control architectures. Typical applications include pressure monitoring and threshold signaling in compressors, pumps, and process lines, where a reliable electrical signal is required to initiate downstream actions as system pressure changes.