Miniature wire pair protector (4-20 ma transmitter protector). 2 lines and ground. 0.50" X 0.68" X 1.25" H. AWG 16 insulated leads. Protection maximum 30 KA, 8/20 µs line to line and each line to ground. Connections across the lines and to ground at or inside the equipment enclosure. Response less than a nanosecond. After initial breakdown clamping voltage immediately drops to 30V an any surge up to 30 KA of current. Automatic restoration to the line voltage after the surge passes.
Inquire regarding other available voltage ratings.