Gasboy Atlas Fuel Systems Installation Manual - Manual (Page 64)

Reference Information Electrical Requirements
Page 7-2 MDE-4331M Atlas® Fuel Systems Installation Manual · September 2014
Electrical Requirements
Following are electrical requirements for installing the unit:
• Sites must be prepared in accordance with NFPA 30A, NFPA 70, and the applicable
national, state, and local codes/regulations.
• All circuit breaker panels and relay boxes must be mounted securely to the wall.
• Only UL-recognized/approved components and/or systems may be used.
• Licensed electricians who are experienced with pump and dispenser installations must be
used to make all electrical connections.
• Installation requires a dedicated circuit-phase system. All electronic units must be wired to
the same power leg.
• An earth ground is required for all circuits.
Emergency Power Cut-off Switch
Following are the emergency power cut-off switch requirements for the unit:
• NFPA 30A and Gasboy require the installation of one or more emergency power cut-off
switches.
• An emergency power cut-off switch is a single control that removes AC power to all
island equipment (pumps/dispensers, STPs, canopies, lights, and so on).
• The emergency power cut-off switch must be accessible, labeled clearly, and installed
away from any hazard that may occur at pumps/dispensers. Cut-off switches must not be
located more than 100 feet away from pumps/dispensers.
Circuit Breakers
Following are the circuit breaker requirements for the unit:
Figure 7-1: Switched Neutral Circuit Breaker
Do not use Use
• A dedicated UL/CUL/CSA-listed switched neutral breaker is required for each circuit
leading to a pump/dispenser or dispenser and STPs. It must be able to disconnect hot and
neutral conductors simultaneously. Canada does not allow neutral ground switching.
Single-pole breakers with handle ties cannot be used.
• Only UL/CUL/CSA-listed circuit breaker panels are permitted for use.
• Circuit breakers must be installed away from pumps/dispensers, readily accessible, and
clearly marked.
• A separate circuit breaker is required for each STP (dispenser models) or each pump
motor (self-contained models).
• One circuit breaker is required for each pump/dispenser to allow isolation of the

pump/dispenser.