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SKU
MPN
UTTB 2,5
Weight
0.016 kg
Series UTTB
UTTB 2,5 - Double-level terminal block
Double-level terminal block, nom. voltage: 500 V, nominal current: 24 A, connection method: Screw connection, Rated cross section: 2.5 mm2, cross section: 0.14 mm2 - 4 mm2, mounting type: NS 35/7,5, NS 35/15, color: gray
- Since there are two function shafts per level, all potential distribution tasks can be implemented quickly
- For a clear overview, each terminal point supports large-surface labeling
- As an option, the levels can be connected using the FBS‑PV UT vertical bridge
- For example, two separate potentials can by routed side by side with the help of bridging between non-adjacent terminal blocks
- Tested for railway applications
Technical Specifications
Product properties
Product family | UTTB |
Area of application | Railway industry |
Area of application | Machine building |
Area of application | Plant engineering |
Area of application | Process industry |
Number of Connections | 4 |
Number of rows | 2 |
Potentials | 2 |
Insulation characteristics
Overvoltage category | III |
Degree of pollution | 3 |
Electrical properties
Rated surge voltage | 6 kV |
Maximum power dissipation for nominal condition | 0.77 W |
Connection data
Number of connections per level | 2 |
Nominal cross section | 2.5 mm² |
Level 1+2
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 | 24 A |
Maximum Load Current | 28 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 | 500 V |
Nominal cross section | 2.5 mm² |
Rated data (ATEX/IECEx)
Identification | II 2 GD Ex eb IIC Gb |
Operating temperature range | -60 °C ... 110 °C |
Ex-certified accessories | 3047293 D-UTTB 2,5/4 |
Ex-certified accessories | 3047303 DP-UTTB 2,5/4 |
Ex-certified accessories | 3047316 ATP-UTTB 2,5/4 |
Ex-certified accessories | 1205053 SZS 0,6X3,5 |
Ex-certified accessories | 3022276 CLIPFIX 35-5 |
Ex-certified accessories | 3022218 CLIPFIX 35 |
List of bridges | Plug-in bridge / FBS 2-5 / 3030161 |
List of bridges | Plug-in bridge / FBS 3-5 / 3030174 |
List of bridges | Plug-in bridge / FBS 4-5 / 3030187 |
List of bridges | Plug-in bridge / FBS 5-5 / 3030190 |
List of bridges | Plug-in bridge / FBS 10-5 / 3030213 |
List of bridges | Plug-in bridge / FBS 20-5 / 3030226 |
Bridge data | 20 A / 2.5 mm² |
Ex temperature increase | 40 K (22.5 A / 2.5 mm²) |
Rated voltage | 352 V |
for bridging with bridge | 352 V |
- At bridging between non-adjacent terminal blocks | 352 V |
- At bridging between non-adjacent terminal blocks via PE terminal block | 275 V |
- At cut-to-length bridging with cover | 220 V |
- At cut-to-length bridging with partition plate | 176 V |
Rated Insulation Voltage | 320 V |
Output | (Permanent) |
Ex level General
Rated current | 20 A |
Maximum Load Current | 24 A |
Ex connection data General
Torque range | 0.5 Nm ... 0.6 Nm |
Nominal cross section | 2.5 mm² |
Rated cross section AWG | 14 |
Connection capacity rigid | 0.14 mm² ... 4 mm² |
Connection capacity AWG | 26 ... 12 |
Connection capacity flexible | 0.14 mm² ... 2.5 mm² |
Connection capacity AWG | 26 ... 14 |
2 conductors with same cross section, solid | 0.14 mm² ... 1.5 mm² |
2 conductors with the same cross-section AWG rigid | 26 ... 16 |
2 conductors with same cross section, stranded | 0.14 mm² ... 1.5 mm² |
2 conductors with the same cross-section AWG flexible | 26 ... 16 |
Output | (Permanent) |
Ex level Level 1
Contact resistance | 0.6 mΩ |
Output | (Permanent) |
Ex level Level 2
Contact resistance | 0.4 mΩ |
Dimensions
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 |
Material specifications
Color | gray |
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 |
Surge voltage test
Result | Test passed |
Temperature-rise test
Requirement temperature-rise test | 45 K |
Result | Test passed |
Short-time withstand current 2.5 mm² | 0.3 kA |
Short-time withstand current 4 mm² | 0.48 kA |
Result | Test passed |
Power-frequency withstand voltage
Test voltage setpoint | 1.89 kV |
Result | Test passed |
Mechanical data
Open side panel | Yes |
Mechanical strength
Result | Test passed |
Attachment on the carrier
DIN rail/fixing support | NS 35 |
Test force setpoint | 1 N |
Result | Test passed |
Test for conductor damage and slackening
Rotation speed | 10 rpm |
Revolutions | 135 |
Conductor cross section/weight | 0.14 mm² / 0.2 kg |
Conductor cross section/weight | 2.5 mm² / 0.7 kg |
Conductor cross section/weight | 4 mm² / 0.9 kg |
Result | Test passed |
Needle-flame test
Time of exposure | 30 s |
Result | Test passed |
Oscillation/broadband noise
Specification | DIN EN 50155 (VDE 0115-200):2008-03 |
Spectrum | Service life test category 1, class B, body mounted |
Frequency | f1 = 5 Hz to f2 = 150 Hz |
ASD level | 1.857 (m/s²)²/Hz |
Acceleration | 0.8g |
Test duration per axis | 5 h |
Test directions | X-, Y- and Z-axis |
Result | Test passed |
Shocks
Specification | DIN EN 50155 (VDE 0115-200):2008-03 |
Pulse shape | Half-sine |
Acceleration | 5g |
Shock duration | 30 ms |
Number of shocks per direction | 3 |
Test directions | X-, Y- and Z-axis (pos. and neg.) |
Result | Test passed |
Ambient conditions
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 % |
Standards and Regulations
Connection in acc. with standard | IEC 60947-7-1 |
Mounting
Mounting Type | NS 35/7,5 |
Mounting Type | NS 35/15 |
Accessories
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Additional Information
Pack Size | 50 |
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