| Part Number: | ULO | - | TB31 | - | 2KDRM | / | 5.08 | - | 02 | P | - | 4 | 000A |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Explanation: |
Brand ULO - Product brand |
Series Code TB31 - 2KDR spring terminal mating connector series |
Model 2KDR - Plain ends |
Pitch 5.08 - 5.08mm |
Positions 02-24 - 2-24 poles; use a two-digit code |
Position Unit P - Poles |
Color 1 - Gray |
Product Version 000A - Standard product |
The 2KDR family combines straight-through spring wire connections with a pluggable mating interface. Each model has one row at 5.08mm pitch and 2–24 poles. The actuator buttons operate the conductor springs; model suffixes identify the end arrangement.
| Model | Series code | End arrangement | Fixing detail |
|---|---|---|---|
| 2KDR/5.08 | TB31 | Plain ends | No additional fixing hardware |
| 2KDRM/5.08 | Fixing-screw flanges | M2.5 screws, 0.4N·m fixing torque | |
| 2KDRP/5.08 | Fixing-nut flanges | Brass nuts; thread and torque not specified | |
| 2KDRG/5.08 | Side latch features | Integral end retention features |
These are wire-connected mating components. Select the corresponding connector by its complete interface, contact count and retention geometry.
| Models | Overvoltage category | Pollution degree | Rated current | Rated voltage | Impulse voltage |
|---|---|---|---|---|---|
| 2KDR, 2KDRM, 2KDRP | III | 3 | 12A | 320V | 4kV |
| 2 | |||||
| II | 630V | ||||
| 2KDRG | III | 3 | 10A | 320V | |
| 2 | |||||
| II | 630V |
| UL use group | Current | Voltage | Wire range |
|---|---|---|---|
| B | 10A | 300V | 28–12AWG |
| C | Not specified | Not specified | Not separately specified |
| D | 10A | 300V | 28–12AWG |
The UL table applies to all four models. Keep UL use groups and IEC installation conditions separate.
| Property | Specification |
|---|---|
| Solid conductor | 0.2–2.5mm² |
| Flexible conductor | 0.2–2.5mm² |
| Flexible conductor with ferrule | 0.2–2.5mm² |
| Strip length | 7–8mm |
| Housing and cover | PA66, UL94V-0 |
| Insulation material group | I |
| Actuator buttons | POM |
| Current-carrying conductor | Nickel-plated brass |
| Spring | Stainless steel |
| 2KDRM fixing screws | Zinc-plated steel |
| 2KDRP fixing nuts | Brass |
| Protection level | IP20 |
| Operating temperature | -40°C to 105°C |
| RoHS compliance | Specified |
All dimensions are in millimetres. P and N each mean the total number of poles in the respective drawings. The common height is 15mm and the contact span is 5.08(P−1) or 5.08(N−1).
| Model | Mating-body length | Wire-side body length | Nominal side depth | Overall depth reference | Wire-side end reference |
|---|---|---|---|---|---|
| 2KDR/5.08 | 5.08(P−1)+7 | 5.08(P−1)+5.6 | 25 | 26.8 | 2.8 |
| 2KDRM/5.08 | 5.08(N−1)+7 | 5.08(N−1)+5.64 | 25.05 | 26.49 | 2.82 |
| 2KDRP/5.08 | |||||
| 2KDRG/5.08 | 5.08(P−1)+7 | 5.08(P−1)+5.6 | 25.55 | 27.35 | 2.8 |
The mating-body longitudinal end reference is 3.5mm. The plain and G drawings also identify a 1mm mating-pin detail. G latch features project beyond the dimensioned core body.
| Fixing dimension | 2KDRM/5.08 | 2KDRP/5.08 |
|---|---|---|
| Overall length including flanges | 5.08(N+2) | |
| Fixing-centre span | 5.08(N+1) | |
| Flange height | 5.6 | 5.7 |
| Fixing-hole detail | 2.6 diameter | 5.5 and 1.7 diameter references |
| Side projection reference | 7.8 | |




Individual tolerances take precedence where shown. General ranges and deviations are in millimetres.
| Dimension range | Total pitch tolerance | Nominal dimension tolerance |
|---|---|---|
| 0–30 | ±0.18 | ±0.20 |
| >30–53 | ±0.20 | ±0.25 |
| >53–70 | ±0.25 | ±0.30 |
| >70–90 | ±0.30 | ±0.35 |
| >90–115 | ±0.35 | ±0.44 |
| >115–150 | ±0.44 | ±0.55 |
| >150–200 | ±0.55 | ±0.70 |
| >200–250 | ±0.70 | ±0.80 |
| >250–320 | ±0.75 | ±0.90 |
| Geometric property | Range | Tolerance |
|---|---|---|
| Perpendicularity | Up to 10mm | 0.2mm |
| Over 10mm | 0.3mm | |
| Symmetry | All dimensions | 0.3mm |
| Straightness | Up to 100mm | 0.2mm |
| Parallelism | 100–150mm | 0.3mm |
| Over 150mm | 0.5mm |
Specify TB31, the complete 2KDR/5.08, 2KDRM/5.08, 2KDRP/5.08 or 2KDRG/5.08 code, and XXP for 02–24 poles. The standard drawing suffix is Y000A, with Y identifying colour.
| Colour code | Colour |
|---|---|
| 1 | Grey |
| 2 | Blue |
| 3 | Black |
| 4 | Green |
| 5 | Orange |
| 6 | Red |
| 7 | Transparent |
| 8 | Yellow |
| 9 | White |