4 • 82-5221
Overview
This manual describes the 82-5221 emergency shutoff. It also describes how to install and start up the
device. A spare parts list at the end of this manual lists replacement parts.
About the 82-5221
The 82-5221 is a fixed-mounted device with a relay, stack light, and emergency stop button. It requires
115 VAC to operate. A relay inside the 82-5221 is field-wired into the power line of a user-supplied
solenoid valve. When the emergency stop button on the front of the housing door is pushed, power to
the connected solenoid valve is cut off. A set of remote relay contacts may optionally be used to cut off
power to the connected solenoid.
Specifications
Table 1 lists specifications for the sample drawing gas detector.
WARNING: When using the 82-5221, you must follow the instructions and warnings in this
manual to assure proper and safe operation of the 82-5221 and to minimize the risk of
personal injury.
Table 1: Specifications
Construction (housing)
• PBT/PC blend
• NEMA 4X
Dimensions
18.77 in. (477 mm) H x 8.09 in. (205 mm) W x 7.19 in. (183 mm) D
Weight
5.1 lbs.
Input Power for Device
115 VAC
Relay Contact Rating
(for solenoid valve
power wiring)
• 15 A at 120 VAC
• 12 A at 28 VDC
