TB30 2KR 5.08mm Screw Terminal Plugs and Mounting Frame

Series Part Number

Part Number: ULO - TB30 - 2KR / 5.08 - 02 P - 4 000A
Explanation:

Manufacturer

ULO - ULO Electronics

Series

TB30 - 5.08mm screw terminal plugs

Plug Type

2KR - Standard plug
2KRP - Plug with brass end nuts
2KRM - Plug with end fixing screws
2KRF - Plug with mounting flanges
2KRPF - Plug with mounting flanges and brass end nuts

Pitch

5.08 - 5.08mm

Poles

02–24 - 2–24 poles, written with two digits

Pole Unit

P - Poles

Color

1 - Grey
2 - Blue
3 - Black
4 - Green
5 - Orange
6 - Red
7 - Transparent
8 - Yellow
9 - White

Customer Code

000A - Fixed customer requirements code shown in the drawings

Description

Screw terminal plugs and mounting options

TB30 2KR plugs provide one contact row at 5.08mm pitch with screw wire termination. Select 2–24 poles and the required fixing arrangement. The KRZM is a separate insulating mounting frame; it has no stated electrical rating or wire termination.

ModelConfigurationWire-clamp screwWire-clamp torqueStrip length
TB30-2KR/5.08Plain plugM30.5N·m7mm
TB30-2KRP/5.08Plug with brass end fixing nuts
TB30-2KRM/5.08Plug with end fixing screws
TB30-2KRF/5.08Plug with mounting flangesM2.50.4N·m7mm, within the 7–8mm range
TB30-2KRPF/5.08Plug with mounting flanges and brass end fixing nuts
TB30-2KRZM/5.08Separate insulating mounting frameNot applicable

KRM end fixing screws are M2.5 with a tightening torque of 0.4N·m, separate from its M3 wire-clamp screws. Fixing thread sizes for KRP and KRPF are unspecified. Mating compatibility requires checking contact geometry, keying and fixing dimensions.

IEC ratings by model

All five conducting plug models are rated 20A, 320V under overvoltage category III and pollution degree 2. Select the model-specific rated impulse voltage below.

ModelOvervoltage categoryPollution degreeRated voltageRated impulse voltage
2KRIII2320V2.5kV
2KRP4kV
2KRM2.5kV
2KRF and 2KRPF4kV

Ratings for category III/pollution degree 3 and category II/pollution degree 2 are unspecified. KRZM has no IEC voltage, current or impulse rating.

UL use groups and conductor ranges

ModelUse group BUse group CUse group DUL wire range
2KR, 2KRP and 2KRM15A, 300VNot specified10A, 300V28–12AWG
2KRF and 2KRPF28–16AWG
2KRZMNot applicable to the insulating frame

2KRF and 2KRPF also have a general UL-standard notation of 16A, 300V without a use group; this does not extend the B or D limits above. Their dielectric withstand test is 1600VAC for 1 minute. Equivalent wire-clamp torque notations are 4.43lb·in for M3 plugs and 3.54lb·in for the M2.5 F/PF plugs.

ModelIEC conductor cross sectionConductor types
2KR0.2–2.5mm²Solid, flexible or flexible with ferrule
2KRP1.0–2.5mm²
2KRM
2KRF and 2KRPF0.2–2.5mm²

IEC conductor ranges and UL wire ranges apply under their respective rating systems. Select the wire size for the circuit current and termination requirements.

Materials and operating conditions

CharacteristicConducting plugsKRZM frame
Pitch and size range5.08mm; 2–24 pole sizes
Housing or frame materialPA66, insulation material group I, UL94V-0
CoverPA66, UL94V-0Not specified
Contact pinsBrass, tin platedNo contacts specified
Clamping cageBrass, nickel platedNot applicable
Wire-clamp screwZinc-plated steel; M3 for KR/P/M, M2.5 for F/PFNot applicable
End fixing nutsBrass on KRP and KRPFNot specified
Protection levelIP20
Operating temperature-40°C to +105°C
Material complianceRoHS compliance declaredNot specified

Certificate file numbers are unspecified.

Ordering fields

FieldMeaning
SeriesTB30
Model2KR, 2KRP, 2KRM, 2KRF, 2KRPF or 2KRZM, followed by /5.08
Pole field XXP02–24P
Colour field Y1 grey; 2 blue; 3 black; 4 green; 5 orange; 6 red; 7 transparent; 8 yellow; 9 white
Customer suffix000A shown in the model drawings
General screw-head field0 slot; 1 cross
General screw-clamping field0 screw down; 1 screw up
General standard-product field0A

Use 02–24P for the selected pole size. Screw fields do not apply to the insulating KRZM frame. Illustrated products are green; not every colour and suffix combination is specified.

Plain KR plug dimensions

P is the number of poles. Formula results are in millimetres. All five conducting plugs share 5.08mm pitch, a 5.08(P−1)mm contact span, 1.00mm square pins and a 3.29mm main-body end-to-contact reference.

KR dimensionValue
Body length[5.08(P−1)+6.58]mm
Body depth19.20mm
Body height15.10mm
TB30 2KR plain screw plug outline and contact dimensions
Plain 2KR plug body and contact layout.

KRP and KRM end fixing dimensions

DimensionKRP and KRM
Main body length[5.08(P−1)+6.58]mm
End fixing centre span[5.08(P−1)+10.16]mm
Overall length including fixing blocks[5.08(P−1)+15.24]mm
End to first contact7.62mm
Fixing centre to adjacent contact5.08mm
Body depth, excluding projecting screw ends19.20mm
Body height15.10mm
TB30 2KRP screw plug with brass end fixing nuts and dimensional references
KRP outline with threaded end fixing positions.
TB30 2KRM screw plug with projecting fixing screws and dimensional references
KRM outline with end fixing screws.

KRF and KRPF flange dimensions

DimensionKRFKRPF
Main body length[5.08(P−1)+6.58]mm
Overall flange length[5.08(P−1)+19.28]mm
Flange fixing centre span[5.08(P−1)+12.88]mm
Length over threaded end blocksNot applicable[5.08(P−1)+15.24]mm
Flange width at fixing hole8.00mm
Fixing centre to rear edge reference12.00mm
Flange-hole centre to main body end3.15mm
Flange end to main body endNot separately labelled6.35mm
Upper-edge to flange-edge reference3.45mmNot separately labelled
Body depth and height19.20mm × 15.10mm
TB30 2KRF flange fixing positions and screw plug outline
KRF plug with mounting flanges.
TB30 2KRPF flange and threaded end fixing dimensions
KRPF combines mounting flanges with threaded end fixing positions.

KRZM insulating frame dimensions

N is the selected pole size, from 2 to 24. The frame's dimensions are independent of the conducting plug body dimensions above.

Frame dimensionValue
Overall length[5.08N+24.04]mm
Inner shoulder span[5.08N+11.04]mm
Central opening span[5.08N+2.24]mm
Fixing-hole centre span[5.08N+16.94]mm
Frame face width16.80mm
Overall depth19.00mm
Face thickness3.00mm
TB30 2KRZM insulating mounting frame outline and fixing dimensions
KRZM frame opening, face and fixing-hole references.

General drawing tolerances

Individual dimension tolerances take precedence over these general values.

Dimension rangeTotal pitch toleranceNominal dimension tolerance
Over 0mm to 30mm±0.18mm±0.20mm
Over 30mm to 53mm±0.20mm±0.25mm
Over 53mm to 70mm±0.25mm±0.30mm
Over 70mm to 90mm±0.30mm±0.35mm
Over 90mm to 115mm±0.35mm±0.44mm
Over 115mm to 150mm±0.44mm±0.55mm
Over 150mm to 200mm±0.55mm±0.70mm
Over 200mm to 250mm±0.70mm±0.80mm
Over 250mm to 320mm±0.75mm±0.90mm
Geometric characteristicApplicable dimensionTolerance
Perpendicularity0–10mm0.2mm
Over 10mm0.3mm
SymmetryAll0.3mm
StraightnessOver 0mm to 100mm0.2mm
ParallelismOver 100mm to 150mm0.3mm
Over 150mm0.5mm