The TIB-EX 80-, 120-, 240- and 480-W DIN rail power supplies are designed for harsh environments and hazardous locations. They are certified to meet ATEX II3G and UL HazLoc Class I, Div. 2 standards. The models include expanded full load thermal performance, enhanced shock and vibration specifications and additional outputs of 12 and 48 Vdc. They offer high-efficiency operation of 88 to 95% and 150% peak power for 4 seconds. Protection circuits include back power immunity, short-circuit and overload protection and a dc-OK dry signal contact. Outputs are radio-interference-suppressed to impede radiation at long output lines.