When operating a solid state relay in an electrically noisy environment, large voltage transients may damage the relay. To protect against this occurrence, it is advisable to install appropriate MOVs across the respective supply and load terminals of the relay output. The “5V” option is available for customers who want the MOVs to be supplied internally with the solid state relay.

CII Continental recommends the use of an appropriately sized I2t fuse on the supply side of the relay to protect the SCR devices. Although a semiconductor relay is designed for virtually countless operation cycles, it can be destroyed by an overvoltage or a short circuit, unless protected adequately by an I2t fuse. NOTE: Overload protection should be provided by another slow acting fuse in series with the short circuit protection fuse. (An overload being an over-current condition that is not of high enough amplitude to be considered a short circuit).

The new model RV is equipped with finger-safe caged terminals, a universal mounting bracket for DIN Rail mounting or bolt-on mounting and a new more efficient heatsink that only requires 0.18 inches between relays for cooling (Fin to Fin) — an industry improvement that reduces your panel requirements by 30-60% compared to other DIN Rail, solid state relay products.

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• RVM3 Data Bulletin (275Kb)