UIK Screw Feedthrough DIN Rail Terminal Blocks

UIK16 Gray Feedthrough Terminal
UIK35 Gray Feedthrough Terminal

Series Part Number

Part Number: ULO - TB338 - UIK 16 BU
Explanation:

Brand

Product Code

TB338 - UIK16 drawing reference
TB140 - Additional UIK35 drawing reference in Description; this breakdown covers these two drawing references

Terminal and Color

UIK 16 BU - Blue, 16mm² nominal cross-section; TB338 only
UIK 16 - Gray, 16mm²; BU and its preceding space omitted; TB338 only
UIK 35 BU - Blue, 35mm² nominal cross-section; TB140 only
UIK 35 - Gray, 35mm²; BU and its preceding space omitted; TB140 only

Description

Single-level screw feedthrough terminals

UIK16 and UIK35 provide one row, one level, two screw connections and one electrical potential per terminal. Select the nominal conductor section, current rating and mounting dimensions for the circuit. Both models mount on U35/7.5 DIN rail and are available in gray or blue.

PropertyUIK16UIK35
ModelULO-TB338-UIK16ULO-TB339-UIK35
Additional model reference—ULO-TB140-UIK35
Nominal cross section16mm²35mm²
Nominal current76A125A
Maximum load current101A125A
Rated voltage, category III / pollution degree 3400V800V
Rated impulse voltage, category III / pollution degree 36kV8kV
Voltage and impulse ratings, III / 2 and II / 2Not specified

Conductor preparation and connection

Connection propertyUIK16UIK35
Solid conductor2.5–25mm²; 12–4AWG0.75–35mm²; 18–2AWG
Flexible conductor4–16mm²; 10–6AWG0.75–35mm²; 18–2AWG
Flexible conductor with ferrule1.5–16mm²0.75–35mm²
Screw / tightening torqueM4 / 1.2N·m
Stripping length11mm16mm

UL use-group ratings

ModelUse group BUse group CUse group DConductor range
UIK1685A / 300V5A / 600V12–4AWG
UIK35115A / 600VNot specified18–2AWG

Materials and operating conditions

PropertyBoth models
InsulationPA66; material group I
FlammabilityUL94V-0
ContactsTin-plated copper alloy
ProtectionIP20
Operating temperature-40°C to +105°C
Housing colorsGray; blue with BU suffix

Outline and rail mounting dimensions

DimensionUIK16UIK35
Width × length × overall height12.05×42.52×45.9mm15×54.93×49.8mm
Top to rail-seat datum39.6mm43.5mm
Rail centerline to right end21.25mm33.65mm
Half rail width17.5mm
UIK16 terminal outline and rail-seat dimensions
UIK16: 12.05mm width, 42.52mm length and 45.9mm overall height. The separate rail-seat height is 39.6mm.
UIK35 terminal outline and rail-seat dimensions
UIK35: 15mm width, 54.93mm length and 49.8mm overall height. The rail centerline is 33.65mm from the right end.
Dimension rangeTotal pitch toleranceNominal dimension tolerance
0–30mm±0.18mm±0.20mm
>30–53mm±0.20mm±0.25mm
>53–70mm±0.25mm±0.30mm
>70–90mm±0.30mm±0.35mm
>90–115mm±0.35mm±0.44mm
>115–150mm±0.44mm±0.55mm
>150–200mm±0.55mm±0.70mm
>200–250mm±0.70mm±0.80mm
>250–320mm±0.75mm±0.90mm
Geometric toleranceApplicable dimensionValue
PerpendicularityUp to 10mm0.2mm
Over 10mm0.3mm
SymmetryGeneral0.3mm
StraightnessUp to 100mm0.2mm
Parallelism100–150mm0.3mm
Over 150mm0.5mm

Terminal-strip accessory references

AccessoryUIK16 referenceUIK35 reference
End coverD-UK4/10D-UK16
Partition plateATP-UKNot specified
Grouping partition plateTS-K
Fixed bridgeFBIXX-12FBIXX-15
Pluggable bridgeEBXX-12EBXX-15
Marker stripZB12ZB15
End clampE/UK
DIN railU35/7.5

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