| Part Number: | ULO | - | TB39 | - | 66 | S | / | B | - | 02 | P | - | 3 | 1 | 0 | 0A |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Explanation: |
Brand |
Series Code |
Model Family 66 - Barrier terminal block; this breakdown covers the 11.11mm-pitch S/B and R/B models |
Pin Configuration S - Straight pins; B ends in this breakdown |
Mounting Ends B - Compact body without mounting ears |
Positions 02-24 - Two to twenty-four positions, written as two digits |
Position Unit P - Position-count suffix |
Color 1 - Grey |
Screw Head 1 - Cross-head screw in the illustrated suffix |
Clamping 0 - Screw-down clamping in the illustrated suffix |
Product Version 0A - Standard product |
The 66 series uses a single row of M4 screw connections with 2-24 positions. Select 66S/A for mounting ears, 66S/B for a compact body with straight pins, or 66R/B for side-projecting pins. Match the mechanical pitch to the complete model: 66S/A uses 11mm, while the two /B models use 11.11mm. All three are shown uncovered.
| Model | Pitch | Pins | Mounting ears | Body height × depth |
|---|---|---|---|---|
| ULO-TB39-66S/A | 11mm | Straight | Yes | 17.3×20.4mm |
| ULO-TB39-66S/B | 11.11mm | No | ||
| ULO-TB39-66R/B | Side-projecting |
Each model has a general IEC rating of 41A, 600V. Additional category-specific voltage and impulse ratings are specified for 66S/B and 66R/B as follows. These additional conditions are not specified for 66S/A.
| Models | Overvoltage category | Pollution degree | Rated current | Rated voltage | Impulse voltage |
|---|---|---|---|---|---|
| 66S/B, 66R/B | III | 3 | 41A | 600V | 6kV |
| 2 | |||||
| II | 1000V |
| UL parameter, all models | Use group B | Use group C | Use group D |
|---|---|---|---|
| Rated current | 30A | 10A | |
| Rated voltage | 300V | 150V | 300V |
| Wire range | 22-10AWG | ||
| Parameter | Value | Models |
|---|---|---|
| Positions / rows | 2-24 / 1 | All |
| Connection method | Screw connection | |
| Clamping screw / tightening torque | M4 / 1.2N·m | |
| IEC conductor size | 6mm² | 66S/B, 66R/B |
| Stripping length | 10mm | |
| Protection level | IP20 | All |
| Operating temperature | -40°C to 105°C | |
| Housing / material group / flammability | PA66 / I / UL94V-0 | |
| Contacts and pins | Tin-plated copper alloy | |
| Screws | Nickel-plated steel | 66S/B, 66R/B |
| Environmental compliance | RoHS |
N denotes 2-24 positions. Dimensions below are in millimetres. Tail lengths and sections differ between the /A and /B versions even where the body height and depth are shared.
| Dimension | 66S/A | 66S/B | 66R/B |
|---|---|---|---|
| Overall body length | 11×(N+2) | 11.11×N+1.29 | |
| Central terminal section length | 11×N+1.40 | Same as body length | |
| First-to-last pin span | 11×(N-1) | 11.11×(N-1) | |
| Pin width × thickness | 1.3×0.8 | 1.3×1.0 | |
| Pin length or projection | 7 below the body | 5±0.3 below the body | 5.10±0.30 from the side |
| Pin-row position | 5.4 from the near depth edge | 8.5 above the lower body face | |
| PCB hole diameter | Ø2.2 | Ø2.0 | |



These general tolerances apply to the 66S/B and 66R/B drawings. Use a specific tolerance where shown beside a dimension. Values below are in millimetres.
| Dimension range | Total pitch tolerance | Nominal dimension tolerance |
|---|---|---|
| 0-30 | ±0.18 | ±0.20 |
| Over 30-53 | ±0.20 | ±0.25 |
| Over 53-70 | ±0.25 | ±0.30 |
| Over 70-90 | ±0.30 | ±0.35 |
| Over 90-115 | ±0.35 | ±0.44 |
| Over 115-150 | ±0.44 | ±0.55 |
| Over 150-200 | ±0.55 | ±0.70 |
| Over 200-250 | ±0.70 | ±0.80 |
| Over 250-320 | ±0.75 | ±0.90 |
| Geometric tolerance | Range or condition | Tolerance |
|---|---|---|
| Perpendicularity | Up to 10mm / over 10mm | 0.2mm / 0.3mm |
| Symmetry | All | 0.3mm |
| Straightness | Up to 100mm | 0.2mm |
| Parallelism | 100-150mm / over 150mm | 0.3mm / 0.5mm |
Select the complete model, position count and color. The /B order formats are ULO-TB39-66S/B-XXP-Y100A and ULO-TB39-66R/B-XXP-Y100A. XX is 02-24 positions; Y is the color code. The 100A ending selects a cross-head screw, screw-down clamping and the standard 0A product configuration.
| Code | Color |
|---|---|
| 1 | Grey |
| 2 | Blue |
| 3 | Black |
| 4 | Green |
| 5 | Orange |
| 6 | Red |
| 7 | Transparent |
| 8 | Yellow |
| 9 | White |