| Part Number: | ULO | - | TB51 | - | 126 | / | 5.0 | - | 02 | P | - | 4 | 000A |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Explanation: |
Brand ULO - Product brand |
Series Code TB51 - 126 and 126R terminal block series |
Model 126 - Side wire entry, top screw access |
Pitch 5.0 - 5mm |
Positions 02-24 - 2-24 poles; use a two-digit code |
Position Unit P - Poles |
Color 1 - Gray |
Product Version 000A - Standard product |
The 126 and 126R use screw-operated wire protectors and a single row of PCB pins. Select the orientation, electrical rating and conductor range by the complete model. Both configurations are offered with 2–24 poles.
| Model | Series code | Pitch | Wire entry relative to PCB | Screw access | Poles |
|---|---|---|---|---|---|
| 126/5.0 | TB51 | 5mm | Side entry | From above | 2–24 |
| 126R/5.0 | Top entry | From the side |
| Model | IEC overvoltage category | Pollution degree | IEC current | IEC voltage | Impulse voltage | UL current and voltage | UL wire range |
|---|---|---|---|---|---|---|---|
| 126/5.0 | III | 2 | 18A | 250V | 2kV | 10A, 300V | 26–14AWG |
| 126R/5.0 | 10A | 4kV | 15A, 300V |
IEC and UL values apply under their respective rating systems. UL use groups C and D are not specified for these models.
| Model | Conductor cross section | Conductor forms | Clamping screw | Tightening torque | Strip length |
|---|---|---|---|---|---|
| 126/5.0 | 0.5–2.5mm² | Solid, flexible or flexible with ferrule | M2.5 | 0.35N·m; UL torque 3.1lb·in | 7mm |
| 126R/5.0 | 0.75–1.5mm² | 0.4N·m |
| Property | Both models |
|---|---|
| Housing | PA66, UL94V-0 |
| Insulation material group | I |
| Current-carrying conductor | Tin-plated brass |
| Wire-protector spring | Stainless steel |
| Screw | Zinc-plated steel, M2.5 |
| Protection level | IP20 |
| Operating temperature | -40°C to 105°C |
| RoHS compliance | Specified |
Dimensions below are in millimetres, with P denoting the number of poles. The two versions share a 5P body-length formula, 5(P−1) pin span, 2.5mm longitudinal end reference and 0.55mm end interlock projection. Their mounting orientations and solder-pin dimensions differ.
| Dimension | 126/5.0 | 126R/5.0 |
|---|---|---|
| Body length | 5P | |
| Body depth × height above PCB | 7.5×10 | 10×7.5 |
| Pin span | 5(P−1) | |
| Longitudinal end-to-pin reference | 2.5 | |
| Pin cross section | 1×0.6 | 0.95×0.6 |
| Pin projection | 3.9±0.3 | 3±0.3 |
| PCB hole diameter | 1.4 | Not specified |
| Transverse pin reference | 3.3 in PCB layout; 3.5 in side view | 1.15 from adjacent housing edge |
Dimensions with an individual tolerance use that stated value. The following general tolerances apply where an individual tolerance is absent; 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 TB51, the full 126/5.0 or 126R/5.0 model, and a two-digit pole count from 02 to 24 followed by P. The standard drawing suffix is Y000A, where Y is the colour code. Select the complete model before defining the PCB footprint.
| Colour code | Colour |
|---|---|
| 1 | Grey |
| 2 | Blue |
| 3 | Black |
| 4 | Green |
| 5 | Orange |
| 6 | Red |
| 7 | Transparent |
| 8 | Yellow |
| 9 | White |
