| Part Number: | ULO | - | TB43 | - | 35C | / | A | - | 02 | P | - | 3 | 100A |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Explanation: |
Manufacturer ULO - ULO Electronics |
Series TB43 - 8.25mm barrier terminal blocks |
Terminal Type 35C - Centered straight PCB pins |
Mounting Ends A - With mounting ends |
Poles 02–24 - 2–24 poles, written with two digits |
Pole Unit P - Poles |
Color 1 - Grey |
Customer Code 100A - Fixed customer requirements code shown in the drawings |
The TB43-35 series provides one row of screw connections at 8.25mm pitch. Choose C for centered straight PCB pins, S for offset straight PCB pins, H for perforated solder lugs, or R for bent PCB pins. The /A housing includes mounting ends; /B omits them. These eight configurations have individual drawings and different terminal positions.
| Model | Termination | Housing ends | IEC voltage, category III / pollution degree 2 |
|---|---|---|---|
| ULO-TB43-35C/A | Centered straight PCB pins | With mounting ends | 320V |
| ULO-TB43-35C/B | Without mounting ends | ||
| ULO-TB43-35S/A | Offset straight PCB pins | With mounting ends | |
| ULO-TB43-35S/B | Without mounting ends | ||
| ULO-TB43-35H/A | Perforated solder lugs | With mounting ends | 250V |
| ULO-TB43-35H/B | Without mounting ends | ||
| ULO-TB43-35R/A | Right-angle PCB pins | With mounting ends | |
| ULO-TB43-35R/B | Without mounting ends |
| Models | IEC current | Overvoltage category | Pollution degree | IEC voltage | Impulse voltage |
|---|---|---|---|---|---|
| 35C/A, 35C/B, 35S/A, 35S/B | 24A | III | 3 | Not specified | 6kV |
| 2 | 320V | ||||
| II | Not specified | ||||
| 35H/A, 35H/B, 35R/A, 35R/B | III | 3 | 4kV | ||
| 2 | 250V | ||||
| II | Not specified |
| UL characteristic, all eight models | Use group B | Use group C | Use group D |
|---|---|---|---|
| Rated current | 20A | Not specified | 10A |
| Rated voltage | 300V | 300V | |
| Wire range | 22–12AWG | ||
| Connection characteristic | All eight models |
|---|---|
| Pitch / poles / rows | 8.25mm / 2–24 poles / 1 row |
| Connection method | Screw connection |
| Solid conductor | 0.5–2.5mm² |
| Flexible conductor | 0.5–2.5mm² |
| Flexible conductor with ferrule | 0.5–2.5mm² |
| Clamping screw / tightening torque | M3 / 0.5N·m |
| Separate fixing screw / fixing torque | Not specified |
| Wire stripping length | Not specified |
| Characteristic | All eight models |
|---|---|
| Housing | PA66, insulation material group I |
| Flammability | UL94V-0 |
| Contact material / finish | Tin-plated copper alloy |
| Solder terminal | Tin-plated brass |
| Screw material / finish | Nickel-plated steel |
| Operating temperature | -40°C to +105°C |
| Protection level | IP20 |
| Environmental statement | RoHS compliance |
The model format is ULO-TB43-35C/A-XXP-Y100A, with 35C/A replaced by the required C/A, C/B, S/A, S/B, H/A, H/B, R/A or R/B variant. XX is the two-digit pole count from 02 to 24; Y is the color code. The general field legend also describes screw head and clamping orientation fields.
| Field | Meaning |
|---|---|
| Color code | 1 gray; 2 blue; 3 black; 4 green; 5 orange; 6 red; 7 transparent; 8 yellow; 9 white |
| Screw head code | 0 slotted; 1 cross |
| Screw clamping code | 0 screw down; 1 screw up |
| 0A | Standard product |
Dimensions below are in millimeters. N is the number of poles. All eight models have 13.70mm housing depth and 15.20mm body height, excluding projecting terminals. The A and B housings have different length formulas; use the matching drawing for the selected termination.
| Dimension | /A housing | /B housing |
|---|---|---|
| Overall length | 8.25 × (N + 2) | 8.25 × (N − 1) + 10.15 |
| Central body length | 8.25 × N + 1.76 | Same as overall length |
| First-to-last terminal span | 8.25 × (N − 1) | |
| Housing mounting openings | Ø3.50 / Ø5.50 as drawn | No mounting ends |
| Terminal type | Section | Projection | Layout detail |
|---|---|---|---|
| 35C/A, 35C/B | 1.00 × 0.80 | 3.50 ±0.30 | Centered row; 6.85 from the housing edge; Ø1.60 PCB holes |
| 35S/A, 35S/B | Offset row; 3.10 from the nearer edge, 10.60 from the opposite edge; Ø1.60 PCB holes | ||
| 35H/A, 35H/B | 3.00 × 0.80 | 9.90 ±0.30 | Perforated lug with 1.50 × 2.50 slot |
| 35R/A, 35R/B | 3.00 × 0.80 shoulder; 1.00 tip width | 3.50 ±0.30 horizontal reach; 3.20 ±0.30 vertical drop | Bent terminal; Ø1.60 PCB holes |








These general drawing tolerances apply where no individual tolerance is shown. Values are in millimeters.
| Dimension range | Total pitch tolerance | Nominal dimension tolerance |
|---|---|---|
| Over 0 to 30 | ±0.18 | ±0.20 |
| Over 30 to 53 | ±0.20 | ±0.25 |
| Over 53 to 70 | ±0.25 | ±0.30 |
| Over 70 to 90 | ±0.30 | ±0.35 |
| Over 90 to 115 | ±0.35 | ±0.44 |
| Over 115 to 150 | ±0.44 | ±0.55 |
| Over 150 to 200 | ±0.55 | ±0.70 |
| Over 200 to 250 | ±0.70 | ±0.80 |
| Over 250 to 320 | ±0.75 | ±0.90 |
| Geometric tolerance | Applicable range | Value |
|---|---|---|
| Perpendicularity | 0–10 | 0.20 |
| Over 10 | 0.30 | |
| Symmetry | All | 0.30 |
| Straightness | Over 0 to 100 | 0.20 |
| Parallelism | Over 100 to 150 | 0.30 |
| Over 150 | 0.50 |