SR4M4024 – TYCO ELECTRONICS

The SR4M4024, manufactured by TYCO, is a 4-pole single-throw (4PST) safety relay designed for momentary actuation. Characterized by its positively guided contacts, this relay ensures a mechanically linked relationship between all four poles, preventing simultaneous closure of normally open (NO) and normally closed (NC) contacts. The ‘momentary’ designation indicates that the relay requires continuous coil energization to maintain its actuated state; upon removal of power, the relay returns to its default, un-energized position. Absence of specific voltage or current ratings necessitates consulting the manufacturer’s datasheet for precise operational parameters, including coil voltage, contact current carrying capacity, insulation resistance, and expected mechanical and electrical life cycles. Intended applications include safety circuits where forced contact guidance is critical for fault detection and prevention of hazardous conditions.