277
400 Series, Ultra Heavy Duty
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Catalog 1308389
Dimensions are in millimeters
Dimensions are shown for
USA: 1-800-522-6752
South America: 55-11-2103-6000
Revised 6-07
and inches unless otherwise
reference purposes only.
Canada: 1-905-470-4425
Hong Kong: 852-2735-1628
specified.
Specifications subject
Mexico: 01-800-733-8926
Japan: 81-44-844-8013
www.tycoelectronics.com
to change.
C. America: 52-55-1106-0803
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
Product Facts
400 Series
n Compact 2/0 or 250 kcmil
(MCM) block - at least 57
circuits per 6- foot length,
1-3/16" [30.16] center-to-
center spacing.
n High current capacity snap-
fit sectional block — tubular
contacts accept single or
combinations of wire sizes
as large as 250 kcmil
(MCM).
n Two contact styles available;
rated up to 270 amperes for
copper wire.
n Allen head screws allow
maximum torque when using
large wire sizes.
n Withstand voltages in excess
of IEEE switchgear standards
for 750 volts. Meet clearance
and creepage spacing
specified in UL, CSA, and
NEMA Industrial Control
Standards for 600 volts.
n Same block directly mounts
on surface or channel
mounts.
n Only one end section needed
per block assembly.
n Readily identify circuits—
order blocks with painted
marking area or use
removable vinyl marking
strip. Preprinted marking
strips are also available.
n Factory assembled blocks
available.
n Ultra Heavy Duty phenolic
block sections do not snap-fit
with other block styles.
LR25557
E63810
This Ultra Heavy Duty line
includes the 400 Series
rated up to 270 A.