Product Model
UTT 2,5-2MT-P/P

Selling Points
- 1Lever-type disconnect knife for easy circuit separation.
- 2Supports up to 400 V, ensuring reliable operation in various applications.
- 3Combines screw connection technology with the benefits of spring-loaded contacts.
- 4Each terminal point supports large surface labeling for clear identification.
- 5RoHS compliant and approved by UL, cUL, EAC, CSA, and cULus.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Parameter | Value | Parameter | Value |
---|---|---|---|
Product type | Disconnect terminal block | Number of connections | 4 |
Number of rows | 2 | Potentials | 2 |
Article revision | 05 | 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 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) | 0.14 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 | 16 A | Maximum load current | 16 A (in case of a 4 mm² conductor cross section, the maximum load current must not be exceeded by the total current of all connected conductors.) |
Nominal voltage | 400 V | Nominal cross section | 2.5 mm² |
Screw thread | M3 | 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) | 0.14 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 | Nominal current | 16 A |
Maximum load current | 16 A (in case of a 4 mm² conductor cross section, the maximum load current must not be exceeded by the total current of all connected conductors.) | Nominal voltage | 400 V |
Nominal cross section | 2.5 mm² | Width | 5.2 mm |
End cover width | 2.2 mm | Height | 80.1 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 | 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 | Test voltage setpoint | 7.3 kV |
Result | Test passed | Requirement temperature-rise test | Increase in temperature ≤ 45 K |
Result | Test passed | Short-time withstand current 1.5 mm² | 0.18 kA |
Result | Test passed | Test voltage setpoint | 1.89 kV |
Result | Test passed | Open side panel | Yes |
Result | Test passed | DIN rail/fixing support | NS 35 |
Test force setpoint | 5 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 |
Time of exposure | 30 s | Result | Test passed |
Specification | DIN EN 50155 (VDE 0115-200):2008-03 | Spectrum | Service life test category 2, bogie-mounted |
Frequency | f | ASD level | 6.12 (m/s²)²/Hz |
Acceleration | 3.12g | Test duration per axis | 5 h |
Test directions | X-, Y- and Z-axis | Result | Test passed |
Specification | DIN EN 50155 (VDE 0115-200):2008-03 | Acceleration | 30g |
Shock duration | 18 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 ... 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 % |
Connection in acc. with standard | IEC 60947-7-1
IEC 60947-7-1 | Mounting type | NS 35/7,5
NS 35/15 |
Specifications may be subject to change without notice