Air Products Gasguard 250, Руководство по установке

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Section 4: Electrical Connections
Revision D: June 1997 Page 4 - 5
The power requirements are as follows:
120/240 VAC, 50/60 Hz, 1 phase
Typical Load: 300 milliamperes @ 120 volts AC
150 milliamperes @ 240 volts AC
Overcurrent protection: Recommended
Sizing: 25% (minimum) over required load (add all
cabinet loads and divide by 0.75)
Internally fused: 1.5 amps
NOTE: Power wiring must be sized to deliver the required voltage
at the rated current. Voltages should be checked at each cabinet
after installation to ensure proper levels
4.3 Field Connections
In NEC Class I, Division 2 areas (only in
the U.S.A.), a conduit seal ("pour fitting")
or equivalent must be installed between
each electrical connection point on the
cabinet and the electrical source.
Liquidtight flexible conduit can be
installed between the GG250 connectors
and the conduit seals to facilitate these
connections. A maximum length of 18" is
allowed between the last pour fitting and
the cabinet connector. All conduits shall
be sealed in accordance to Sections 501-5,
502-5 or 504-70 of the National Electric
Code. See Figures 4.2 and 4.5 for details.
NOTE: These systems are not
Explosive Atmosphere Directive
approved for use in the European
community.