Cut Sheet

V7-T8-110 Volume 7—Logic Control, Operator Interface and Connectivity Solutions CA08100008E—July 2014 www.eaton.com
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8.2
Terminal Blocks, Fuse Blocks and Fuse Holders
NEMA
Technical Data and Specifications
Formulas for Calculating Blocks and Channel Lengths
N = Number of Blocks
C381 Series Terminal Blocks, Rail Mounted
Dimensions
Approximate Dimensions in Inches (mm)
C381 Series Terminal Blocks, Rail Mounted
Description Blocks Length
Control blocks and pull apart blocks 0.762 + (0.375 x N)
Power circuit blocks 0.812 + (0.750 x N)
Fuse and switch blocks 0.812 + (0.755 x N)
Mounting channel (minimum channel length) 0.75 + blocks length
Block A B
Control circuit blocks 1.25 (31.8) 1.55 (39.4)
Power circuit blocks 1.75 (44.5) 2.00 (50.8)
Fuse blocks 2.75 (69.9) 2.00 (50.8)
Switch blocks 2.75 (69.9) 2.00 (50.8)
Pull apart blocks 1.88 (47.8) 2.75 (69.9)
A
1.19
(30.2)
Channel
Mounting
Terminal Block Mounting
Without Channel
B
Mounting Channel in 6' (1.8m) Lengths,
Can Be Cut to Desired Length