| Part Number: | ULO | - | TB250 | - | 4 | L | - | A |
|---|---|---|---|---|---|---|---|---|
| Explanation: |
Brand ULO - Product brand |
Model TB250 - Barrier terminal block family, 12mm pitch |
Positions 3-12 - 3-12 poles; 4 selects four poles |
Position Suffix L - Fixed suffix following the pole count |
Cover A - With cover |
The 2504L is the four-pole member of the TB250-XL barrier terminal family. The range provides 3–12 poles at 12mm pitch, with paired screw connection points for each pole and mounting positions at the two ends. Cover option A includes a cover; option B is supplied without a cover.
| Selection field | Specification |
|---|---|
| Product model | TB-2504L |
| Family designation | TB250-XL-A/B, where X identifies the 3–12 pole count |
| Pitch | 12.0mm |
| Circuit arrangement | One row of poles with two screw connection points per pole |
| Connection method | Screw connection |
| Cover option A | With cover |
| Cover option B | Without cover |
| Parameter | Value |
|---|---|
| IEC current / voltage | 25A / 600V |
| Rated impulse voltage | 8kV; overvoltage category not specified |
| UL use group B current / voltage | 25A / 300V |
| UL use groups C and D | Not specified |
| UL wire range | 26–10AWG |
| Solid conductor cross-section | 0.5–6.0mm² |
| Flexible conductor cross-section | 0.5–6.0mm² |
| Flexible conductor with ferrule | 0.5–6.0mm² |
| Clamping screw | M4 |
| Tightening torque | 1.2N·m |
| Dielectric withstand voltage | 2500VAC for 1 minute |
| Insulation resistance | 500MΩ at 500VDC |
| Part or characteristic | Specification |
|---|---|
| Housing | PC, UL94V-0 |
| Conductive terminal | Tin-plated brass |
| Clamping screw | Nickel-plated steel, M4 |
| Operating temperature | -40°C to +130°C |
| Protection level | IP20 for the covered configuration |
Dimensions below are in millimetres. N is the number of poles. The illustrated terminal has four poles; its 57.00 mounting-centre dimension applies to that illustrated configuration.
| Dimension | Value |
|---|---|
| Overall length | 12.00N+19.40 |
| Overall length at four poles | 67.40 |
| Body width | 30.00 |
| Body height | 16.50 |
| Four-pole mounting centre distance | 57.00 |
| Field | Selection |
|---|---|
| Base family | TB250 |
| Pole-count field | XL, with X from 3 to 12; 4L identifies four poles |
| Cover field | A With cover; B Without cover |
Select the pole count and cover option before checking the required mounting space. The product photograph shows the covered four-pole configuration.
