| Part Number: | ULO | - | TB352 | - | URTK | / | S |
|---|---|---|---|---|---|---|---|
| Explanation: |
Brand |
Product Code |
Terminal Model URTK - Listed screw connection test disconnect terminal; one level and two conductor connections |
Fixed Version S - Fixed suffix in the documented URTK/S model |
ULO-TB352-URTK/S places two screw conductor connections on one level with a central disconnect link and accessible test connection hardware. The conductive path forms one potential when the disconnect link is closed. The terminal mounts on NS35/7.5 rail.
| Parameter | Value |
|---|---|
| Model | ULO-TB352-URTK/S |
| Levels / conductor connections | 1 / 2 |
| Potentials with link closed | 1 |
| IEC nominal current / maximum load current | 41A / 57A |
| IEC nominal voltage | 400V |
| Rated impulse voltage | 6kV |
| Overvoltage category / pollution degree | III / 3 |
| Nominal conductor cross section | 6mm² |
| Solid conductor | 0.5–10mm²; 20–8AWG |
| Flexible conductor | 0.5–6mm²; 20–10AWG |
| Flexible conductor with ferrule | 0.5–4mm² |
| Screw / tightening torque | M4 / 1.2N·m |
| Stripping length | 13mm |
| UL use group | Rated current | Rated voltage | Conductor range |
|---|---|---|---|
| B | 50A | 300V | 26–8AWG |
| C |
The UL conductor range applies to the UL use-group ratings; the general solid and flexible conductor ranges remain separate.
| Parameter | Value |
|---|---|
| Width × length × height | 8.15mm × 71.8mm × 50.4mm |
| Rail-seat-to-top height | 44.1mm |
| Rail center to right end | 38.4mm |
| Half-rail width | 17.5mm |
| Rail | NS35/7.5 |
| Protection level | IP20 |
| Operating temperature | -40°C to +105°C |
| Insulation material / group | PA66 / I |
| Flammability classification | UL94V-0 |
| Contact material / finish | Copper alloy / tin plated |
| Accessory | Reference |
|---|---|
| Fixed bridge | ULO-TB390-FBI XX-RTK/S |
| Marker strip | ULO-TB391-ZB8; ULO-TB391-ZBF8 |
| Marker card | ULO-TB394-B1; ULO-TB394-B2; ULO-TB394-B3 |
| End clamp | ULO-TB393-E/UK; ULO-TB393-E/UK1; ULO-TB393-E-WA |
| Dimension range | Total pitch tolerance | Nominal dimension tolerance |
|---|---|---|
| 0–30mm | ±0.18mm | ±0.20mm |
| Over 30–53mm | ±0.20mm | ±0.25mm |
| Over 53–70mm | ±0.25mm | ±0.30mm |
| Over 70–90mm | ±0.30mm | ±0.35mm |
| Over 90–115mm | ±0.35mm | ±0.44mm |
| Over 115–150mm | ±0.44mm | ±0.55mm |
| Over 150–200mm | ±0.55mm | ±0.70mm |
| Over 200–250mm | ±0.70mm | ±0.80mm |
| Over 250–320mm | ±0.75mm | ±0.90mm |
Geometric tolerances: perpendicularity 0.2mm through 10mm and 0.3mm above 10mm; symmetry 0.3mm; straightness 0.2mm through 100mm; parallelism 0.3mm over 100–150mm and 0.5mm above 150mm.
