BURNDY
URD Underground
TYPE YRB-U
HYREDUCER™ SPLICE
FOR ALUMINUM-TO-ALUMINUM
AND ALUMINUM-TO-COPPER
Type YRB-U splice is designed for use within
underground systems. Aluminum splices are
tin-plated and recommended for use on
Aluminum-to-Aluminum and Aluminum-to-
Copper cables. All splices have solid center
stop for use with oil filled and non-oil filled
cables. The Outside Diameter is held
constant to minimize installation dies and
connectors are prefilled with PENETROX™.
Rated up to 35 kV.
CONDUCTOR RANGE
DIMENSIONS
B
WIRE STRIP LENGTH
BARREL BARREL
CATALOG
NUMBER
YRB2U3TTN
BARREL “A”
CU & ALUM.
BARREL “B”
CU & ALUM.
DIE
COLOR
MIN.
L
O.D.
“A”
“B”
NUMBER CODE
#2 (.292 Dia.) 7 Str.
#3 (.260 Dia.) 7 Str.
#1 (.332 Dia.) 19 Str. or
1/0 CMPCT (.336 Dia.) 19 Str.
#1 (.332 Dia.) 19 Str. or
YRB1CU2TTN
YRB1CU1TTN
YRB25U3TTN
YRB25U2TTN
YRB25U25TTN
YRB27U25TW
YRB28U3TW
YRB28U2TW
YRB28U1TW
YRB28U25TW
YRB28U26TW
YRB28U28TW
#2 (.292 Dia.) 7 Str.
#1 (.332 Dia.) 19 Str. or
1/0 CMPCT (.336 Dia.) 19 Str.
1/0 (.373 Dia.) 19 Str. or
1/0 CMPCT (.336 Dia.) 19 Str.
1.35
[34]
3.25
[83]
.65
1-3/4ꢀ
1-3/4ꢀ
296
Tan
#3 (.260 Dia.) 7 Str.
#2 (.292 Dia.) 7 Str.
[17]
1/0 CMPCT (.336 Dia.) 19 Str.
1/0 (.373 Dia.) 19 Str. or
1/0 CMPCT (.336 Dia.) 19 Str.
1/0 (.373 Dia.) 19 Str. or
1/0 (.373 Dia.) 19 Str. or
1/0 CMPCT (.336 Dia.) 19 Str.
1/0 (.373 Dia.) 19 Str. or
1/0 CMPCT (.336 Dia.) 19 Str.
3/0 (.470 Dia.) 19 Str. or
3/0 CMPCT (.423 Dia.) 19 Str.
4/0 (.528 Dia.) 19 Str. or
1/0 CMPCT (.336 Dia.) 19 Str.
#3 (.260 Dia.) 7 Str.
J-6
4/0 CMPCT (.475 Dia.) 19 Str.
4/0 (.528 Dia.) 19 Str. or
1.53
[39]
3.69
[94]
#2 (.292 Dia.) 7 Str. or
#2 CMPCT (.268 Dia.) 7 Str.
#1 (.332 Dia.) 19 Str. or
4/0 CMPCT (.475 Dia.) 19 Str.
4/0 (.528 Dia.) 19 Str. or
.85
1-1/2ꢀ
1-1/2ꢀ
298
White
4/0 CMPCT (.475 Dia.) 19 Str.
4/0 (.528 Dia.) 19 Str. or
1/0 CMPCT (.299 Dia.) 7 Str.
1/0 (.373 Dia.) 19 Str. or
[22]
1.53
[39]
3.70
[94]
4/0 CMPCT (.475 Dia.) 19 Str.
4/0 (.528 Dia.) 19 Str. or
1/0 CMPCT (.336 Dia.) 19 Str.
2/0 (.419 Dia.) 19 Str. or
4/0 CMPCT (.475 Dia.) 19 Str.
4/0 (.528 Dia.) 19 Str. or
2/0 CMPCT (.376 Dia.) 19 Str.
4/0 (.528 Dia.) 19 Str. or
1.53
[39]
3.69
[94]
4/0 CMPCT (.475 Dia.) 19 Str.
350 kcmil (.681 Dia.) 37 Str. or
4/0 CMPCT (.475 Dia.) 19 Str.
1/0 (.373 Dia.) 19 Str. or
YRB31U25TW 350 kcmil CMPCT (.616 Dia.) 19 Str. AL;
37 Str. AL & CU
1/0 CMPCT (.336 Dia.) 19 Str.
350 kcmil (.681 Dia.) 37 Str. or
4/0 (.528 Dia.) 19 Str. or
2.34
[59]
5.43
1.11
[28]
YRB31U28TW
350 kcmil (.616 Dia.) 19 Str. AL;
37 Str. AL & CU
2-1/4ꢀ
2-1/4ꢀ
299
Brown
250 kcmil CMPCT (.520 Dia.) 37 Str.
[138]
350 kcmil (.681 Dia.) 37 Str. or
350 kcmil (.681 Dia.) 37 Str. or
YRB31U31TW 350 kcmil CMPCT (.616 Dia.) 19 Str. AL; 350 kcmil CMPCT (.616 Dia.) 19 Str. AL;
37 Str. AL & CU 37 Str. AL & CU
1 Material: Aluminum.
2 Finish: Electro-tin plated.
➂Catalog number PT6515 Adaptor is required to use “U”
dies in Y45 series tools.
➂ Barrels are partially filled with PENETROX™ and sealed.
4 Scratch brushing of all conductors before making
installation is recommended.
5 Not for use with Copper-to-Copper applications.
6 Dimensions in brackets [ ] are in millimeters rounded off
to the nearest millimeter, unless otherwise noted, and are
for reference only.
➂Catalog number PUADP-1 Adaptor is required to use “U”
dies in Y46 series tools.
9 On MY29-3 HYTOOL™ use alum. Index plate settings as
follows, for 1/0 conductor use 1/0 setting. For conductor
smaller than 1/0 size use 2/0 setting.
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