Specifications

51
Miscellaneous Units
Description Space
Factor
(2)
(2) Adding options may increase the space factor of the unit
NEMA Type “C” Terminal Board Unit
(supplied unwired)
Includes Bulletin 1492-CA1
terminal blocks
Top or bottom-mounted 44 Terminal Blocks
1.0
66 Terminal Blocks
88 Terminal Blocks
110 Terminal Blocks
Top or bottom-mounted 76 Terminal Blocks
1.5
114 Terminal Blocks
152 Terminal Blocks
190 Terminal Blocks
Neutral Connection Plate Unit 0.25 in. x 2 in. x 12 in. copper tin plated bus plate with #6-250 kcmil lug (280 A capacity)
0.5
0.25 in. x 2 in. x 12 in. copper silver plated bus plate with #6-250 kcmil lug (280 A
capacity)
0.5
Surge Protective Device Unit (formerly
known as TVSS)
(1)
(1) Refer to Surge Protective Device Unit, publication 2100-TD023
, for more information
WYE power systems with a
solidly grounded neutral
3-wire
480V L-L, 277V L-G
0.5
600V L-L, 346V L-G
208V L-L, 120V L-G
380V L-L, 220V L-G
400V L-L, 230V L-G
415V L-L, 240V L-G
WYE power systems with a
solidly grounded neutral,
4-wire
480V L-L, 277V L-G, 277V L-N
WYE power systems with
impedence grounded neutral
or 3 Phase, 3-Wire Delta Power
Systems
480V
600V
240V
380V
400V
415V
Corner Section Inside corner configuration is either 15 in. deep by 25 in. wide or 20 in. deep by 30 in.
wide and is designed to contain power bus rated 600…2000 A only. There is no available
space for the installation of units. The corner section does not have vertical wireway. Not
available in either NEMA Type 3R, Type 4 or back-to-back construction.
6.0