UKH50 to UKH240 High Current Screw Terminal Blocks

UKH50 Screw Terminal Block
UKH95 Screw Terminal Block
UKH150 Screw Terminal Block
UKH240 Terminal Connection Detail

Series Part Number

Part Number: ULO - TB340 - UKH 50 BU
Explanation:

Brand

Series Code

TB340 - UKH 50
TB341 - UKH 95
TB342 - UKH 150
TB343 - UKH 240

Model and Colour

UKH 50 - Grey; TB340
UKH 50 BU - Blue; TB340
UKH 95 - Grey; TB341
UKH 95 BU - Blue; TB341
UKH 150 - Grey; TB342
UKH 150 BU - Blue; TB342
UKH 240 - Grey; TB343
UKH 240 BU - Blue; TB343; omit the space and BU for grey

Description

High current connections on a DIN rail

UKH50, UKH95, UKH150 and UKH240 are single-row screw terminal blocks with two connections sharing one electrical potential. Select the model by conductor type and size, applicable electrical rating and installation dimensions.

ModelNominal cross-sectionNominal currentMaximum load current
UKH5050mm²150A150A
UKH9595mm²232A232A
UKH150150mm²309A309A
UKH240240mm²415A415A
Common characteristicValue
Nominal voltage1000V
Rated impulse voltage8kV
Overvoltage category / pollution degreeIII / 3
Operating temperature-60–110°C
Rows / connections / potentials1 / 2 / 1
Connection methodScrew connection
Protection ratingIP20
InsulatorPA66; material group I; UL94V-0
ContactsTin-plated copper alloy

Conductor selection and installation

ModelSolid conductorFlexible conductorFlexible with ferruleStrip lengthScrewTorque
UKH5016–70mm²25–70mm²25–50mm²24mmM62.5N·m
UKH9525–95mm²35–95mm²35–95mm²33mmM83.5N·m
UKH15035–150mm²50–150mm²50–150mm²40mmM104N·m
UKH24070–240mm²70–240mm²70–185mm²25N·m
ModelGeneral solid-conductor AWG / kcmil rangeGeneral flexible-conductor AWG / kcmil range
UKH504–2/0AWG2–2/0AWG
UKH952–3/0AWG1/0–3/0AWG
UKH1501/0AWG–250kcmil1/0AWG–250kcmil
UKH2403/0AWG–350kcmil3/0AWG–350kcmil

Metric, AWG and kcmil limits are listed ranges, not exact unit conversions. The UL ranges below apply with their own use-group ratings.

UL use-group data

ModelUse group BUse group CUse group DConductor range
UKH50600V / 150AUnspecified6–1/0AWG
UKH95600V / 230AUnspecified2–4/0AWG
UKH150600V / 285AUnspecified2AWG–300kcmil
UKH240600V / 380AUnspecified2/0AWG–500kcmil

Dimensions and colour options

ModelWidthOverall length referenceOverall height referenceSecondary height referenceRail-foot references
UKH5020mm75.45mm75.8mm68.6mm17.5mm / 38.1mm
UKH9525mm88.57mm89.8mm82.6mm17.5mm / 44.3mm
UKH15031mm105.2mm110.84mm103.35mm17.5mm / 53mm
UKH24036mm123.94mm116.45mm
Base identifierGrey selectionBlue selection
TB340-UKH50UKH50UKH50 BU
TB341-UKH95UKH95UKH95 BU
TB342-UKH150UKH150UKH150 BU
TB343-UKH240UKH240UKH240 BU

Model-specific mounting illustrations

UKH50 terminal body and mounting outline
UKH50 body and rail-mount illustration.
UKH95 terminal body and mounting outline
UKH95 body and rail-mount illustration.
UKH150 terminal body and mounting outline
UKH150 body and rail-mount illustration.
UKH240 terminal body and mounting outline
UKH240 outline with 36mm width and 123.94mm height reference.

Listed installation accessories

ModelFixed bridgePluggable bridgeMarker stripEnd clampRail
UKH50FBIXX-20UnspecifiedZB10E/UKU35/7.5
UKH95UnspecifiedEBXX-25/UKHZB22
UKH150EBXX-31/UKHZB25
UKH240Accessory identifiers unspecified

Documents