AT&T 1987 AT&T Telephone User Manual


 
AC Power Requirements
The System 25 power service shall be a dedicated branch circuit with no other
equipment served (See Figure 6-3. )
Each cabinet requires 500 Watts at 115V ac (maximum)
Provide a load center of appropriate current rating (ITE EQ4 typical) equipped with
120V ac, 15 ampere (AMP), single pole magnetic circuit breaker(s) (ITE QP1-B015
typical ). Each breaker is to protect 2 associated wall mounted 115 V ac, 15 AMP,
receptacles (HUBBELL 5262 typical). Grounding of this load center is to be provided
by a “Green Wire” ground extended from the grounding electrode conductor at the AC
service entrance to the load center.
The following materials are required:
A.
B.
C.
D.
Single Cabinet System
1 - 15 AMP 3 Wire Dedicated Branch Service
1 - 4“ Box (RACO 230 or Equiv.)
1 - 4“ Cover (RACO 807 or Equiv.)
1 - Ground Bar (Square D PK9GTA or Equiv.)
2 - Recpt. (Hubbell 5262 15 AMP or Equiv.)
Multiple Cabinet System
2 - 15 AMP 3 Wire Dedicated Branch Service
2 - 4“ Box (RACO 230 or Equiv.)
2 - 4“ Cover (RACO 807 or Equiv.)
1 - Ground Bar (Square D PK9GTA or Equiv.)
4 - Recpt. (Hubbell 526215 AMP or Equiv.)
Typically, multiple cabinet systems can be powered from a single phase 120V
ac, 60 Hertz service (two 15 amp circuits required. ) There are no phase
restrictions between cabinets.
Therefore the two 15 amp circuits required
may be derived from single or three-phase service.
The receptacles shall be located at least 1 foot above the floor. Receptacles
shall not be located further than 4 feet from the cabinets.
DANGER
Under no circumstances should this equipment
be connected to 220V ac; doing so poses a
serious fire hazard.
6-6