Product Model
UTTB 2,5/2P

Key Features
- 1Double-level design for efficient distribution: Two function shafts per level enable quick implementation of all potential distribution tasks.
- 2Screw connection for secure wiring: Ensures reliable and easy connection of cables.
- 3Voltage rating of 500V: Suitable for high-voltage applications.
- 4Current rating of 24A: Handles significant current flows efficiently.
- 5Railway and industrial applications tested: Meets stringent standards for railway and industrial use.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| General | Current and voltage are determined by the plug used. | Product type | Plug-in terminal block |
| Product family | UTTB | Number of connections | 4 |
| Number of rows | 2 | Potentials | 2 |
| Article revision | 06 | Overvoltage category | III |
| Degree of pollution | 3 | Rated surge voltage | 6 kV |
| Maximum power dissipation for nominal condition | 0.77 W | Number of connections per level | 2 |
| Nominal cross section | 2.5 mm² | Screw thread | M3 |
| Tightening torque | 0.5 ... 0.6 Nm | Stripping length | 9 mm |
| Internal cylindrical gage | A3 | Connection in acc. with standard | IEC 61984 |
| Conductor cross section rigid | 0.14 mm² ... 4 mm² | Cross section AWG | 26 ... 12 (converted acc. to IEC) |
| Conductor cross section flexible | 0.14 mm² ... 4 mm² | Conductor cross section, flexible [AWG] | 26 ... 12 (converted acc. to IEC) |
| Conductor cross-section flexible (ferrule without plastic sleeve) | 0.14 mm² ... 2.5 mm² | Flexible conductor cross section (ferrule with plastic sleeve) | 0.14 mm² ... 2.5 mm² |
| 2 conductors with same cross section, solid | 0.14 mm² ... 1.5 mm² | 2 conductors with same cross section, flexible | 0.14 mm² ... 1.5 mm² |
| 2 conductors with same cross section, flexible, with ferrule without plastic sleeve | 0.14 mm² ... 1.5 mm² | 2 conductors with the same cross section, flexible, with TWIN ferrule with plastic sleeve | 0.5 mm² ... 1.5 mm² |
| Nominal current | 24 A | Maximum load current | 24 A (with 4 mm² conductor cross section) |
| Nominal voltage | 500 V | Nominal cross section | 2.5 mm² |
| Width | 5.2 mm | End cover width | 2.2 mm |
| Height | 69.9 mm | Depth | 64.4 mm |
| Depth on NS 35/7,5 | 65 mm | Depth on NS 35/15 | 72.5 mm |
| Color | gray (RAL 7042) | Flammability rating according to UL 94 | V0 |
| Insulating material group | I | Insulating material | PA |
| Static insulating material application in cold | -60 °C | Temperature index of insulation material (DIN EN 60216-1 (VDE 0304-21)) | 130 °C |
| Relative insulation material temperature index (Elec., UL 746 B) | 130 °C | Fire protection for rail vehicles (DIN EN 45545-2) R22 | HL 1 - HL 3 |
| Fire protection for rail vehicles (DIN EN 45545-2) R23 | HL 1 - HL 3 | Fire protection for rail vehicles (DIN EN 45545-2) R24 | HL 1 - HL 3 |
| Fire protection for rail vehicles (DIN EN 45545-2) R26 | HL 1 - HL 3 | Calorimetric heat release NFPA 130 (ASTM E 1354) | 28 MJ/kg |
| Surface flammability NFPA 130 (ASTM E 162) | passed | Specific optical density of smoke NFPA 130 (ASTM E 662) | passed |
| Smoke gas toxicity NFPA 130 (SMP 800C) | passed | Test voltage setpoint | 7.3 kV |
| Result | Test passed | Short-time withstand current 2.5 mm² | 0.3 kA |
| Result | Test passed | Test voltage setpoint | 1.89 kV |
| Result | Test passed | Open side panel | Yes |
| DIN rail/fixing support | NS 35 | Test force setpoint | 1 N |
| Result | Test passed | Insertion/withdrawal cycles | 100 |
| Time of exposure | 30 s | Result | Test passed |
| Specification | DIN EN 50155 (VDE 0115-200):2018-05 | Spectrum | Service life test category 1, class B, body mounted |
| Frequency | f | ASD level | 0.964 (m/s²)²/Hz |
| Acceleration | 0.58g | Test duration per axis | 5 h |
| Test directions | X-, Y- and Z-axis | Result | Test passed |
| Specification | DIN EN 50155 (VDE 0115-200):2018-05 | Pulse shape | Half-sine |
| Acceleration | 5g | Shock duration | 30 ms |
| Number of shocks per direction | 3 | Test directions | X-, Y- and Z-axis (pos. and neg.) |
| Result | Test passed | Ambient temperature (operation) | -60 °C (max. operating temperature see derating curve) |
| Ambient temperature (storage/transport) | -25 °C ... 60 °C (for a short time, no longer than 24 h, -60°C to +70°C) | Ambient temperature (assembly) | -5 °C ... 70 °C |
| Ambient temperature (actuation) | -5 °C ... 70 °C | Permissible humidity (operation) | 20 % ... 90 % |
| Permissible humidity (storage/transport) | 30 % ... 70 % | Connection in acc. with standard | IEC 61984 |
| Mounting type | NS 35/7,5
NS 35/15 |
Specifications may be subject to change without notice
