Table 3

Approved Instrument Transformer Cabinets

(print from .pdf)

Effective October 14, 2003
Updates All Previous Tables

48" H x 48" W X 12" D
INDOOR MOUNTING
NEMA 1 (General Purpose)
SINGLE or THREE PHASE, 208 or 240Volt
THREE PHASE, 480 or 480Y/277 Volt
1200 Ampere Maximum*

MANUFACTURER

CATALOG #

AUSTIN COMPANY

AB484812CTD/PPL

COOPER B-LINE

484812 PENN CT

E-BOX

EB484812P

EAST COAST PANELBOARD

PP-484812

K&S/MECO

K1248

METER DEVICES

507U6853**

UNITY MFG. CO.

TR484812DDCT1

WIEGMANN

N1484812-CTPPL

MOST RECENT CHANGE

DATE

MFG.

CATALOG #

STATUS

REASON

10/2003

East Coast Panelboard

PP-484812

Approved

New Listing

* 800 ampere maximum for three phase, 480Y/277 volt.
Free standing switchgear or installation per
 Sketch 16A is required for services over 800 amperes.

** Cabinet is 13" deep.

APPLICATION:

Three finger instrument transformer mounting for single or three phase, 208 or 240 volt; 480 volt or 480/277Y three phase.

MATERIAL:

Galvannealed or galvanized steel with gray enamel finish or cold rolled steel with a UL recognized gray powder coat finish, minimum #14 gauge.

GENERAL SPECIFICATIONS

DOOR CONSTRUCTION:

Double hinged doors are required. The hinges and hinge pins must be non-removable. Each door must have an internal stiffener, minimum #14 gauge.

LATCHING MECHANISM:

A three point latching mechanism that secures both doors is required. The latching bars must pass through a guide that assures correct latching. The latching mechanism cannot protrude more than 1" inside the cabinet. All connection bolts must be permanently secured to prevent accidental contact of any metal part should the latching assembly fail.

LOCKING PROVISION:

The latching mechanism handle must be designed to provide a locking provision in the closed position. This locking provision must accommodate a minimum 1/4" hasp. Key locking of the handle is not allowed.

CATALOG NUMBER:

The catalog number (as listed by PPL) must be permanently marked on the inside of the right door.