Isolation Barrier Unit Color Gray Enclosure Rating NEMA 1 Material Plastic Mounting Location Surface Overall Depth 7 1/2 in Overall Height 9 3/8 in Overall Width 13 1/8 in Resistance Properties Not Applicable Compatible with Manufacturer Model Number 262-001 272-001 Features Analog Isolation Barrier For Use With Intrinsically-Safe Phones Standards FCC IC UL/CSA