2KN 5.08mm Spring Terminal Plugs

Series Part Number

Part Number: ULO - TB27 - 2KNM / 5.08 - 02 P - 4 000A
Explanation:

Brand

Series Code

Model

2KN - Plain spring terminal plug
2KNM - Spring terminal plug with end-fixing screws. This ordering breakdown covers these two models and excludes 2KNG.

Pitch

5.08 - 5.08mm

Poles

02–24 - Two-digit count from 2 to 24 poles

Pole Suffix

Colour

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

Customer Requirements

000A - Standard suffix shown in the two scoped drawings

Description

5.08mm spring terminal plugs

The 2KN family uses straight-through spring connections in a single row of 2–24 poles. Orange buttons provide access to the wire clamps. Choose a plain body, end fixing screws or locking levers according to the required mechanical arrangement.

ModelConfigurationPitchPole range
TB27-2KN/5.08Plain spring terminal plug5.08mm2–24
TB27-2KNM/5.08Spring terminal plug with end fixing screws
TB27-2KNG/5.08Spring terminal plug with end locking levers

Use the complete model code when selecting the fixing arrangement. Matching pitch alone does not establish compatibility with a header.

IEC electrical ratings

Applicable modelsOvervoltage categoryPollution degreeRated voltageRated currentRated impulse voltage
2KN, 2KNM and 2KNGIII3320V12A4kV
2
II630V

UL use-group ratings

Applicable modelsUse groupRated currentRated voltageWire range
2KN, 2KNM and 2KNGB12A300V24–16AWG
CNot specified
D10A300V24–16AWG

For 2KN and 2KNM, dielectric withstand voltage is 1600VAC for 1 minute.

Conductor preparation and fixing

Parameter2KN2KNM2KNG
Solid conductor0.2–2.5mm²
Flexible conductor0.2–1.5mm²0.2–2.5mm²
Flexible conductor with ferrule0.2–1.5mm²0.2–2.5mm²
Stripping length11–12mm12mm
End fixingPlain bodyM2.5 fixing screwsLocking levers
Fixing screw torqueNot applicable0.4N·mNot applicable

Conductor clamping is by spring connection. The M2.5 screw torque applies only to the 2KNM end fixing screws. The conductor limits above belong to the named version and must not be exchanged between models.

Materials and operating conditions

Parameter2KN and 2KNM2KNG
HousingPA66, UL94V-0
Insulation material groupI
CoverPA66, UL94V-0Not specified
Clamp or contactTin-plated phosphor bronze clampTin-plated brass contact
Actuating buttonPOMNot specified
Protection ratingIP20
Operating temperature-40°C to +105°C

Ordering fields

FieldSelection
Series and modelTB27-2KN/5.08, TB27-2KNM/5.08 or TB27-2KNG/5.08
Pole count02P–24P
Colour code1: Grey; 2: Blue; 3: Black; 4: Green; 5: Orange; 6: Red; 7: Transparent; 8: Yellow; 9: White
Standard suffix00A

Plain and screw-fixed dimensions

Dimensions are in millimetres. N is the number of poles, represented by P or N in the figures. The two drawings cover the plain 2KN and screw-fixed 2KNM. A complete outline including the 2KNG locking levers is not specified.

ModelDimension datumValue
2KNContact-end width5.08×N+0.10
Body span indicated in side elevation5.08×(N−1)+4.20
Body thickness10.90
Body height24.65
Overall height, reference26.70
2KNMOverall width across fixing ends5.08×N+10.00
Main body width5.08×N+0.10
Fixing centre spacing5.08×(N+1)
Body thickness10.90
Body height24.80
Overall height, reference26.70
2KN 5.08mm plain spring terminal plug dimensions
2KN plain plug dimensions, including the contact-end width, body span and 26.70mm reference overall height.
2KNM 5.08mm spring terminal plug with fixing screw dimensions
2KNM screw-fixed plug dimensions, with 5.08×(N+1)mm fixing centre spacing and 5.08×N+10mm overall width.

General drawing tolerances

These tolerances apply to the attached 2KN and 2KNM drawings where no individual tolerance is shown.

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

Technical drawings

Separate technical drawings are attached for 2KN and 2KNM. Their outlines do not define the complete mechanical envelope of the lever-locking 2KNG version.