Protectowire ELR-HD-U, End of Line Fiberglass NEMA-4X Enclosure w/Test Switch & Comp. Terminals, 8.2K Resistor

The ELR-HD-U consists of the U-ELR-1 Universal End-ofLine Resistor device mounted in a NEMA 4X enclosure.
Used to terminate Class B detection circuits of fire
alarm system employing Protectowire Line Type Heat
Detector, the U-ELR-1 is furnished with quick connect
clamping type terminals which makes it possible to
fasten the detector directly to the terminals. All bends in
the Protectowire Line Type Heat Detector should have a
minimum radius of 2.5in (6.4cm). The U-ELR-1 Universal
End-of-Line Resistor device is furnished with a Test
Button. When the Test Button is pressed the detection
circuit is shorted to simulate an alarm condition.