Product Model
UT 2,5-HESILED 24 (5X20)

Selling Points
- 1Compact design for easy integration into tight spaces.
- 2Tested for railway applications ensuring high reliability.
- 3Safety lever for secure test connection on both sides.
- 4Compatible with 5 x 20 mm glass tube fuse inserts.
- 5Available in packs of 50 for convenient bulk ordering.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Parameter | Value | Parameter | Value |
---|---|---|---|
Note | The current is determined by the fuse used, the voltage by the fuse or selected light indicator.
When using fuse terminal blocks in a compound arrangement, the D-UT 2,5/4-TWIN end cover (3047141) must be inserted at each fuse terminal block or a UT 2,5-MTS-EX terminal block (1277636) must be used between each fuse terminal block.
When using partition plates between the fuse terminal blocks, FBS bridges cannot be used due to the separation. | Product type | Fuse terminal block |
Area of application | Railway industry
Machine building
Plant engineering | Number of connections | 2 |
Number of rows | 1 | Potentials | 1 |
Article revision | 00 | Overvoltage category | III |
Degree of pollution | 3 | Fuse type | Glass / ceramics / ... |
Rated surge voltage | 6 kV | Maximum power dissipation for nominal condition | 0.77 W |
Fuse | G / 5 x 20 | LED voltage range | 12 V AC/DC ... 30 V AC/DC |
LED current range | 0.31 mA ... 0.95 mA | Maximum power dissipation | max. 1.6 W (with single arrangement of the fuse terminal block in the event of overload)
max. 1.6 W (With interconnected arrangement of several fuse terminal blocks in the event of overload)
max. 4 W (with single arrangement of the fuse terminal block in the event of a short-circuit)
max. 2.5 W (With interconnected arrangement of several fuse terminal blocks in the event of a short-circuit) |
LED voltage range | 12 V AC/DC ... 30 V AC/DC | 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
B3 | Connection in acc. with standard | IEC 60947-7-3 |
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 | 6.3 A | Maximum load current | 6.3 A (with 4 mm² conductor cross-section) |
Nominal voltage | 24 V | Nominal cross section | 2.5 mm² |
Width | 6.2 mm | Height | 57.8 mm |
Depth on NS 35/7,5 | 75.6 mm | Depth on NS 35/15 | 83.1 mm |
Color | black | Flammability rating according to UL 94 | V0 |
Insulating material group | I | Insulating material | PA |
Static insulating material application in cold | -60 °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 |
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 | No |
Specification | DIN EN 50155 (VDE 0115-200):2018-05 | 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):2018-05 | Pulse shape | Half-sine |
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 60947-7-3 |
Mounting type | NS 35/7,5
NS 35/15 |
Specifications may be subject to change without notice