Control relays or other listed control appliances must be installed within ? of the component controlling the emergency function.

Control relays or other listed control appliances must be installed within ? of the component controlling the emergency function.

• A. 1'
• B. 2'
• C. 3'
• D. 4'

Answer: (C)

Keeping control relays and listed control appliances within three feet of the component that controls the emergency function ensures the control path is short, so the emergency action happens quickly and reliably. Shorter wiring runs reduce the chance of delays, voltage drop, or interference that could affect the response of the system. It also keeps the relay physically close to the device it controls, making installation, testing, and maintenance safer and easier. The distance specified is the maximum allowed, so three feet is the limit. A longer distance, such as four feet, would not meet the rule and could introduce delays or wiring issues. Shorter distances are acceptable, but the key point is staying within that three-foot limit.

Keeping control relays and listed control appliances within three feet of the component that controls the emergency function ensures the control path is short, so the emergency action happens quickly and reliably. Shorter wiring runs reduce the chance of delays, voltage drop, or interference that could affect the response of the system. It also keeps the relay physically close to the device it controls, making installation, testing, and maintenance safer and easier.

The distance specified is the maximum allowed, so three feet is the limit. A longer distance, such as four feet, would not meet the rule and could introduce delays or wiring issues. Shorter distances are acceptable, but the key point is staying within that three-foot limit.