Porter-Brumfield 4264 R40-E1-Y2-V320 Electromechanical Relay

The Porter-Brumfield 4264 R40-E1-Y2-V320 is an electromechanical relay designed to switch DC circuits, providing isolation between a control coil and a powered load. It is rated for 2 A at 28 VDC, suitable for medium‑duty DC switching in control panels, instrumentation, and automation equipment. The coil is available in DC variants, with 12 VDC and 28 VDC coil options documented in related listings, allowing integration with different control voltages while maintaining the same contact characteristics. The 4264 family under Porter & Brumfield (a TE Connectivity Potter & Brumfield lineage) encompasses compact, general‑purpose relays intended for reliable actuation in industrial environments. When selecting replacements, match the exact part number (4264 R40-E1-Y2-V320) to preserve the intended coil voltage and contact configuration, and verify that the DC load does not exceed the 2 A rating at 28 VDC. This relay represents a straightforward, non‑solid‑state solution for dispatching DC signals in equipment such as controllers, dashboards, and sensor interfaces where mechanical switching and galvanic isolation are required.