| Part Number: | ULO | - | TB91 | - | 331 | / | 5.0 | - | 02 | P | - | 4 | 0 | 0 | 0A |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Explanation: |
Brand |
Series Code |
Model 331 - Screw terminal block model |
Pitch 5.0 - 5mm pitch |
Positions 02-20 - Two to twenty positions, written as two digits |
Position Unit P - Position-count suffix |
Color 1 - Gray |
Screw Head 0 - Slot screw in the illustrated standard suffix |
Clamping 0 - Screw-down clamping in the illustrated standard suffix |
Product Version 0A - Standard product |
331/5.0 terminal blocks arrange screw-clamped conductor entries on a 5mm pitch. The housing has underside locating and retention features, with no projecting solder tails in the illustrated configuration. Select the pole count and check the complete housing outline for installation.
| Property | Specification |
|---|---|
| Product reference | ULO-TB91-331/5.0 |
| Model | 331/5.0 |
| Pitch | 5mm |
| Poles | 2-20 |
| Connection rows | 1 |
| Connection method | Screw clamp |
| Protection rating | IP20 |
| Condition | Current | Voltage | Impulse voltage | Wire range |
|---|---|---|---|---|
| IEC, overvoltage category III, pollution degree 2 | 12A | 250V | 2kV | 1-2.5mm² |
| IEC, category III / pollution degree 3; category II / pollution degree 2 | Not specified separately | Not specified | Not specified | Not specified separately |
| UL use group B | 8A | 300V | 28-14AWG | |
| UL use group C | Not specified | Not specified | Not specified separately | |
| UL use group D | 8A | 300V | 28-14AWG |
| Property | Specification |
|---|---|
| Solid conductor | 1-2.5mm² |
| Flexible conductor | 1-2.5mm² |
| Flexible conductor with ferrule | 1-2.5mm² |
| Stripping length | 6mm |
| Clamping screw | M3 |
| Tightening torque | 0.5N·m / 4.43lbf·in |
| Dimension | Value |
|---|---|
| Length for N poles | 5 × N mm |
| First-to-last connection centre span | 5 × (N−1) mm |
| End-to-first-centre reference | 2.5mm |
| Overall height | 12.5mm |
| Body depth | 12.4mm |
| Overall depth across lower retention features | 14.72mm |
| Component or property | Specification |
|---|---|
| Housing | PA66, material group I, UL94V-0 |
| Cage | Nickel-plated copper alloy, M3 |
| Clamping contact | Tin-plated copper alloy |
| Screw | Zinc-plated steel, M3 |
| Operating temperature | -40°C to +105°C |
| Material compliance | RoHS |
Use ULO-TB91-331/5.0-XXP-Y000A for the standard configuration. XX is the pole count from 02 to 20; Y identifies the housing color.
| Field | Selection |
|---|---|
| Product reference and model | ULO-TB91-331/5.0 |
| XX poles | 02-20 |
| Y color | 1 gray; 2 blue; 3 black; 4 green; 5 orange; 6 red; 7 transparent; 8 yellow; 9 white |
| Screw head field | 0 slot; 1 cross |
| Screw clamping field | 0 screw down; 1 screw up |
| Final 0A | Standard product |
| Dimension range | Total pitch tolerance | Nominal dimension tolerance |
|---|---|---|
| 0-30mm | ±0.18mm | ±0.20mm |
| >30-53mm | ±0.20mm | ±0.25mm |
| >53-70mm | ±0.25mm | ±0.30mm |
| >70-90mm | ±0.30mm | ±0.35mm |
| >90-115mm | ±0.35mm | ±0.44mm |
| >115-150mm | ±0.44mm | ±0.55mm |
| >150-200mm | ±0.55mm | ±0.70mm |
| >200-250mm | ±0.70mm | ±0.80mm |
| >250-320mm | ±0.75mm | ±0.90mm |
| Geometric property | Range | Tolerance |
|---|---|---|
| Perpendicularity | Up to 10mm | 0.2mm |
| Over 10mm | 0.3mm | |
| Symmetry | All | 0.3mm |
| Straightness | Up to 100mm | 0.2mm |
| Parallelism | 100-150mm | 0.3mm |
| Over 150mm | 0.5mm |
