Celduc Sensor Technology SO945460 Solid State Relay

Celduc Sensor Technology SO945460 Solid State Relay is a single-phase, 1 Form A (SPST-NO) photorelay in the SO9 package that switches AC loads up to 60 A. It delivers a 12-280 VAC output with a peak off-state voltage of 600 V and accepts a 3-32 VDC control signal, enabling direct interfacing to logic. The input is optically isolated via a LED-driven photocoupler, providing galvanic isolation between control and load circuits. The device uses back-to-back thyristors and Celduc’s 4th-generation TMS² technology for robust switching and protection, with an I²t rating of 2800 A²s. Its footprint is 45 × 58.5 × 30 mm, and nominal performance requires mounting on a heatsink. Input current is typically under 13 mA, facilitating low-power drive. Suitable for industrial automation, heating control, and other AC-load switching, this relay supports resistive and some inductive loads in demanding environments while preserving isolation and solid-state reliability in a compact package.