Product Model
UTTB 2,5-2R/NAMUR
Selling Points
- 1Made from PA material with a flammability rating of UL 94 V0.
- 2Compact width of 5.2 mm and robust construction for reliable connections.
- 3Meets overvoltage category III and degree of pollution 3.
- 4Supports conductor cross sections from 0.14 mm² to 4 mm².
- 5Compliant with China RoHS and environmentally friendly use period of 50 years.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
Product type | Component terminal block | Number of connections | 4 |
Number of rows | 2 | Potentials | 2 |
Article revision | 05 | Overvoltage category | III |
Degree of pollution | 3 | Rated insulation voltage | 500 V |
Rated surge voltage | 6 kV | 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 | 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 cross section | 2.5 mm² |
Component type | Resistance | Resistance value | 10 kΩ |
Tolerance | 1 % | Electric strength | 350 V |
Component type | Resistance | Resistance value | 1 kΩ |
Tolerance | 1 % | Electric strength | 350 V |
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)) | 125 °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) | 27,5 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 | Open side panel | Yes |
Ambient temperature (operation) | -60 °C ... 110 °C (Operating temperature range incl. self-heating; for max. short-term operating temperature, see RTI Elec.) | Ambient temperature (storage/transport) | -25 °C ... 60 °C (for a short time, not exceeding 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 % |
Mounting type | NS 35/7,5
NS 35/15 |
Specifications may be subject to change without notice