Speedfax 2017

Power Mod
Revised on 10/31/19
Type WTB Standard Tap boxes
Restrictions for 1600-2400amp type WTB Power Mod Tap Boxes:
Lugs not included.
When the 1600, 2000, or 2400amp tap boxes are used as service entrance equipment (fed
directly from utility transformer) or when the supply originates from a Class L fuse or Siemens
WL circuit breaker there are restrictions on the use of an additional down-stream horizontal crossbus
connected WTBN, WTB, WET, or WT type Power Mod tap boxes. When another tap box is
connected to the same meter-bank, a type “WXB” module must be used as protection for the
down- stream tap box (placed between the incoming WTB tap box and the downstream outgoing
tap box). This restriction does NOT apply if the tap box is fed from a Siemens Sentron or VL series
molded case circuit breaker. Note that the maximum amperage for a Siemens Sentron circuit
breaker is 2,000amps.
NEMA 2-stud lugs
must be installed
by user or utility.
Refer to pages
3-129 – 3-130 for
lug size options.
Suitable for use as service equipment. Bonding means may
be removed for non-service entrance equipment applications.
Tap box modules: 1-phase, 3-wire WN, 120/240V AC e
Catalog number
(100k AIC)
Catalog number
(100k AIC)
Blank Endwall
Ampere
rating c
Service
feed
Dimensions (inches) a
Height Width Depth
Line side
connections b
(lugs not included)
KO
Diagram
3 METER
CENTERS
WTB1400CU WTB1400CUNH 400 OH/UG d 40.13 12.22 13.19 1 set of 2 studs T-1
WTB1800CU
WTB11200CU
WTB1800CUNH
WTB11200CUNH
800 OH/UG d 40.13 12.22 13.19
T-2
2 sets of 2 studs
1200 OH/UG d 47.13 15.61 13.31 T-3
WTB11600CU f WTB11600CUNH f 1600 OH/UG d 50.25 25.09 13.81
3 sets of 2 studs
T-4
WTB12000TU f WTB12000TUNH f OH
2000
WTB12000BU f — UG
WTB12400TU f WTB12400TUNH OH
2400
WTB12400BU f — UG
67.94 35.00 14.78 3 sets of 2 studs
67.94 35.00 14.78
3 sets of 2 studs
Optional 4 sets
of 2 studs gh
T-6
Tap box modules: 3-phase, 4-wire SN, 240V AC Max. e
Catalog number
(100k AIC)
Catalog number
(100k AIC)
Blank Endwall
Ampere
rating c
Service
feed
Dimensions (inches) a
Height Width Depth
Line side
connections b
(lugs not included)
KO
Diagram
WTB3400CU WTB3400CUNH 400 OH/UG d 40.13 12.22 13.19 1 set of 2 studs T-1
WTB3800CU WTB3800CUNH 800 OH/UG d 40.13 12.22 13.19
T-2
2 sets of 2 studs
WTB31200CU WTB31200CUNH 1200 OH/UG d 60.31 15.61 17.75 T-3
WTB31600CU f WTB31600CUNH f 1600 OH/UG d 50.25 25.09 13.81
3 sets of 2 studs
T-5
WTB32000TU f WTB32000TUNH f OH
2000
WTB32000BU f — UG
WTB32400TU f WTB32400TUNH OH
2400
WTB32400BU f — UG
67.94 35.00 14.78 3 sets of 2 studs
67.94 35.00 14.78
3 sets of 2 studs
Optional 4 sets
of 2 studs gh
T-6
a Dimensions shown are representative of outside box
dimensions and do not include allowances for mounting
bumps, endwalls, covers, hubs, or hardware protrusions.
Dimensions are subject to change.
b Lugs not included. Refer to page 3-129 – 3-130 for lug
size options. 750 conductor size available NEMA 2-stud
compression lugs must be installed by user or utility.
c 1200 amp maximum feed per side, any unit over
1200A must be used as a center fed main.
d Module is invertible- rotate device to point hub openings
to appropriate feed direction.
e QuickConnect not included. If used for load side
application an additional coupler must be ordered.
f Please see restriction note above.
g Please see lug kit number LK18500N2C on pages
3-129 – 3-130. For use with 500kcmil ONLY.
h Fits 2400amp models ONLY.
Product Category RESI
Siemens Industry, Inc. SPEEDFAX Product Catalog 3-43