UK Screw Feed-Through DIN Rail Terminal Blocks

UK1.5N Screw Terminal
UK2.5B Screw Terminal
UK3N Screw Terminal
UK5N Screw Terminal
UK5 TWIN Screw Terminal
UK6N Screw Terminal
UK10N Screw Terminal
UK16N Screw Terminal
UK35N Screw Terminal

Series Part Number

Part Number: ULO - TB349 - UK 5 - TWIN BU
Explanation:

Brand

Series Code

TB330 - UK1.5N
TB331 - UK2.5B
TB332 - UK3N
TB333 - UK5N
TB349 - UK5-TWIN
TB334 - UK6N
TB335 - UK10N
TB336 - UK16N
TB337 - UK35N

Model Tail

UK 1.5 N / UK 1.5 N BU - Grey / blue; TB330
UK 2.5B / UK 2.5B BU - Grey / blue; TB331
UK 3 N / UK 3 N BU - Grey / blue; TB332
UK 5 N / UK 5 N BU - Grey / blue; TB333
UK 5 - TB349; append the hyphen and TWIN field
UK 6 N / UK 6 N BU - Grey / blue; TB334
UK 10 N / UK 10 N BU - Grey / blue; TB335
UK 16 N / UK 16 N BU - Grey / blue; TB336
UK 35 N / UK 35 N BU - Grey / blue; TB337; each slash here separates alternatives and is not part of the model code

TWIN Configuration

TWIN - Grey UK5-TWIN; TB349 only
TWIN BU - Blue UK5-TWIN; TB349 only
Blank - For all other series codes, omit this field and its preceding hyphen; their colour is included in the model tail above

Description

Feed-through and TWIN configurations

UK terminals use screw clamps for conductor connections on U35/7.5 DIN rail. Each terminal has one electrical potential. UK5-TWIN provides three connected conductor positions, with two openings arranged at different heights on one side.

ModelSeries codeConnectionsConnection rowsNominal cross section
UK1.5NTB330211.5mm²
UK2.5BTB3312.5mm²
UK3NTB332
UK5NTB3334mm²
UK5-TWINTB34932
UK6NTB334216mm²
UK10NTB33510mm²
UK16NTB33616mm²
UK35NTB33735mm²

IEC electrical characteristics

The following ratings use overvoltage category III and pollution degree 3. Nominal current and maximum load current are separate values.

ModelNominal voltageImpulse voltageNominal currentMaximum load currentOperating temperature
UK1.5N500V6kV17.5A17.5A-60–110°C
UK2.5B690V8kV24AUnspecified
UK3N800V32A
UK5N32A41A
UK5-TWIN500V6kV32A-40–105°C
UK6N800V8kV41A57A-60–110°C
UK10N57A76A
UK16N76A101A
UK35N1000V125A125A-40–105°C

UL use-group ratings

ModelGroup BGroup CGroup DUL wire range
UK1.5N15A / 300V5A / 600V30–14AWG
UK2.5B20A / 300V30–12AWG
UK3N20A / 600VUnspecified28–12AWG
UK5N30A / 600VUnspecified30–10AWG
UK5-TWIN30A / 300V30A / 150VUnspecified
UK6N50A / 600VUnspecified26–8AWG
UK10N65A / 600VUnspecified24–6AWG
UK16N85A / 600VUnspecified22–4AWG
UK35N115A / 600VUnspecified8–2AWG

Conductor ranges

General rigid and flexible conductor ranges are shown separately from the UL use-group ranges above. Apply the range for the selected conductor preparation.

ModelRigid conductorRigid AWGFlexible conductorFlexible AWGFlexible with ferrule
UK1.5N0.14–1.5mm²26–16AWG0.14–1.5mm²26–16AWG0.25–0.75mm²
UK2.5B0.2–4mm²24–12AWG0.2–2.5mm²24–14AWG0.25–1mm²
UK3N0.25–1.5mm²
UK5N0.2–6mm²24–10AWG0.2–4mm²24–12AWG0.25–2.5mm²
UK5-TWIN0.2–4mm²24–12AWG
UK6N0.2–10mm²24–8AWG0.2–6mm²24–10AWG0.25–6mm²
UK10N0.5–16mm²20–6AWG0.5–10mm²20–8AWG0.5–6mm²
UK16N2.5–25mm²12–4AWG4–16mm²10–6AWG1.5–16mm²
UK35N10–35mm²6–2AWG10–35mm²6–2AWG10–35mm²

Screw tightening and wire preparation

ModelScrewTorqueStrip length
UK1.5NM20.2N·m7mm
UK2.5BM30.5N·m
UK3N8mm
UK5N, UK5-TWIN
UK6N, UK10NM41.2N·m10mm
UK16N11mm
UK35NM62.5N·m16mm

Materials and colour choices

CharacteristicSpecification
Insulating bodyPA66, material group I, UL94V-0
ContactsTin-plated copper alloy
Protection ratingIP20
Colour optionsGrey standard model; blue with BU suffix
DIN railU35/7.5

Dimensions and rail profiles

ModelWidthLengthOverall heightSecondary profile height
UK1.5N4.15mm42.53mm40.70mm34.40mm
UK2.5B6.20mm42.525mm
UK3N5.15mm42.53mm45.90mm39.60mm
UK5N6.15mm
UK5-TWIN6.20mm50.10mm46mm37.30mm
UK6N8.15mm42.50mm45.90mm39.60mm
UK10N10.15mm42.53mm
UK16N12.10mm42.52mm52.70mm46.40mm
UK35N16mm54.40mm61.45mm54.60mm

Rail-seat horizontal references are 17.50mm and 21.25mm for UK1.5N, UK2.5B, UK3N, UK5N, UK10N and UK16N; UK6N uses 17.50mm and 21.23mm. UK35N uses 17.50mm and 26.70mm references. UK5-TWIN has a 42.90mm secondary body-length reference.

UK1.5N terminal body and DIN rail profile
UK1.5N outline.
UK2.5B terminal body and DIN rail profile
UK2.5B outline.
UK3N terminal body and DIN rail profile
UK3N outline.
UK5N terminal body and DIN rail profile
UK5N outline.
UK5 TWIN terminal body and DIN rail profile
UK5-TWIN outline.
UK6N terminal body and DIN rail profile
UK6N outline.
UK10N terminal body and DIN rail profile
UK10N outline.
UK16N terminal body and DIN rail profile
UK16N outline.
UK35N terminal body and DIN rail profile
UK35N outline.

Assembly accessories

Accessory references are selections for the indicated terminal, rather than a statement of included parts. E/UK end clamps and U35/7.5 rail are listed for all nine models.

ModelEnd coverPartition plateGrouping partitionFixed bridgePluggable bridgeMarker strip
UK1.5ND-UK2.5ATP-UKUnspecifiedFBRNXX-4NUnspecifiedZB4
UK2.5BTS-KK3FBIXX-6EBXX-6ZB6
UK3ND-UK4/10TS-KFBRIXX-5NEBLXX-5ZB5
UK5NFBIXX-6EBXX-6ZB6
UK5-TWIND-UK5-TWINUnspecified
UK6ND-UK4/10ATP-UKFBIXX-8EBXX-8ZB8
UK10NFBIXX-10EBXX-10ZB10
UK16ND-UK16FBIXX-12EBXX-12ZB12
UK35NUnspecifiedUnspecifiedUnspecifiedFBI2-15EB2-15ZB16

Documents