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403
Telcom
Protection
Products
Telcom Protection Products
Power Feed Through Terminal Blocks
Series C7021
Specifications
Description: Power
feed through terminal
block with two rows
1
⁄4-20 studs capable of
accommodating the
industry standard
two-hole compression
lugs on both studs in
parallel.
Ratings:
Volts: — 300V
Amps: — 115/175A* per pole
Center Spacing: 0.690" (17.5mm).
Wire Range: AWG #2/0-8.
Poles: 2- to 6-poles.
Bolt Hole Spacing: 0.625" or
5
⁄8” (15.88mm).
Stud: Standard
1
⁄4-20 stud (tin-plated brass) or optional M6
stud.
Mounting: #6 thread cutting screws (not included) or
optional mounting ears.
Torque Rating: 36 lb-in.
Operating Temperature: 130°C.
Agency Information: UL/CSA; CE Certified.
*175 achieved using both studs in parallel, 115A using a single stud per line.
Typical Applications
• Applications requiring up to 175A utilizing a 2-hole
compression lug on
5
⁄8" centers
• Input/output block for telecommunications power panels
• Use to eliminate busbars
Catalog Number Build-A-Code
Series Poles Mount Ends Studs Hardware
C7021 – –
01 = 1-Pole (2 studs) Blank = Mount ends Blank = Standard Blank = No hardware
02 = 2-Pole (4 studs) N = No mount ends M6 = M6 Studs 0 = Bulk pack, one set
03 = 3-Pole (6 studs) 1 = Bulk pack, two sets
04 = 4-Pole (8 studs) 2 = Assembled, bottom
05 = 5-Pole (10 studs) 3 = Assembled, top
06 = 6-Pole (12 studs) 4 = Assembled, both sets
Dimensions - in (mm)
Catalog
Numbers A B C D E
C7021-01-X
C7021-02-X 17.5 (0.69) - 54.4 (2.14) 67.3 (2.65) 31.8 (1.25)
C7021-03-X 34.9 (1.37) - 70.9 (2.83) 84.8 (3.34) 49.2 (1.94)
C7021-04-X 52.3 (2.06) - 89.3 (3.52) 102.2 (4.02) 66.7 (2.63)
C7021-05-X 69.8 (2.75) - 106.8 (4.20) 119.7 (4.71) 84.2 (3.31)
C7021-06-X 87.2 (3.44) - 124.2 (4.89) 134.1 (5.40) 101.7 (4.00)
C7021-01N-X
C7021-02N-X 17.5 (0.69) 36.1 (1.42) - - 31.8 (1.25)
C7021-03N-X 34.9 (0.69) 53.5 (2.11) - - 49.2 (1.94)
C7021-04N-X 52.3 (2.06) 71.0 (2.80) - - 66.7 (2.63)
C7021-05N-X 69.8 (2.75) 88.4 (3.48) - - 84.2 (3.31)
C7021-06N-X 87.2 (3.44) 105.9 (4.17) - - 101.7 (4.00)
Panel Cutouts
