UT 2,5-MT-P/P TMR
Product ID:21534
Updated: 2026/7/29
Key Features
- 1Highly Reliable: Tested for railway applications with double bridge shaft for individual potential distribution and supply.
- 2Versatile Connections: Supports conductor cross sections from 0.14 mm² to 4 mm², and AWG from 26 to 12.
- 3Durable Design: Insulating material PA with inflammability class V0, suitable for harsh environments.
- 4Easy Installation: Screw connection method with test sockets for quick and secure assembly.
- 5Compliant Standards: Meets IEC 60947-7-1 standards for reliable and safe operation.
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Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Product type | Disconnect terminal block | Area of application | Railway industry
Machine building
Plant engineering |
| Number of connections | 2 | Number of rows | 1 |
| Article revision | 04 | 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 | Rated cross section AWG | 12 |
| 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 | 20 A |
| Maximum load current | 20 A (with 4 mm² conductor cross section) | Nominal voltage | 400 V |
| Nominal cross section | 2.5 mm² | Width | 5.2 mm |
| End cover width | 2.2 mm | Height | 57.8 mm |
| Depth on NS 35/7,5 | 49.1 mm | Depth on NS 35/15 | 56.6 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 | 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, 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 60947-7-1 | Mounting type | NS 35/7,5
NS 35/15 |
Specifications may be subject to change without notice
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