Product Model
UTN 2,5
Selling Points
- 1Secure and Reliable Connections: The UTN 2,5 terminal block ensures secure connections with a rated cross-section of 2.5 mm² and a maximum current of 24 A.
- 2Easy Assembly: Easy to assemble with screw connections and support brackets available for secure neutral busbar fixation.
- 3High Voltage Rating: Designed for nominal voltage of 250 V, making it suitable for various industrial applications.
- 4Durable Insulation: Features PA insulation material with a flammability rating of V0 according to UL 94.
- 5Comprehensive Testing: Passed various tests including surge voltage, power-frequency withstand voltage, and mechanical stability tests.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
General | In order to securely fix the neutral busbar in place, support brackets must be placed at the beginning and end of each terminal strip as well as every 20 cm on longer terminal strips. | Product type | Installation terminal block |
Number of connections | 2 | Number of rows | 1 |
Potentials | 1 | Article revision | 06 |
Overvoltage category | III | Degree of pollution | 3 |
Rated surge voltage | 4 kV | Maximum power dissipation for nominal condition | 0.77 W |
Current carrying capacity of the neutral busbar | 140 A | 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 60947-7-1 |
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) | 0.25 mm² ... 2.5 mm² | Flexible conductor cross section (ferrule with plastic sleeve) | 0.25 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 | 0.25 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 |
Nominal voltage | 250 V | Nominal cross section | 2.5 mm² |
Width | 5.2 mm | End cover width | 2.2 mm |
Height | 55 mm | Depth on NS 35/7,5 | 47.5 mm |
Depth on NS 35/15 | 55 mm | Color | blue (RAL 5015) |
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 | 4.8 kV | Result | Test passed |
Requirement temperature-rise test | Increase in temperature ≤ 45 K | Result | Test passed |
Short-time withstand current 2.5 mm² | 0.3 kA | Result | Test passed |
Test voltage setpoint | 1.5 kV | Result | Test passed |
Open side panel | Yes | Result | Test passed |
DIN rail/fixing support | NS 35 | Test force setpoint | 1 N |
Result | Test passed | Rotation speed | 10 rpm |
Revolutions | 135 | Conductor cross section/weight | 0.14 mm² / 0.2 kg
2.5 mm² / 0.7 kg
4 mm² / 0.9 kg |
Result | Test passed | Temperature cycles | 192 |
Result | Test passed | Time of exposure | 30 s |
Result | Test passed | 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 |
Permissible humidity (operation) | 20 % ... 90 % | Permissible humidity (storage/transport) | 30 % ... 70 % |
Connection in acc. with standard | IEC 60947-7-1 | Mounting type | NS 35/7,5
NS 35/15 |
Specifications may be subject to change without notice