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Phoenix ContactOfficial Distributor

By Phoenix Contact

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 familyUTTB
Area of applicationRailway industry
Area of applicationMachine building
Area of applicationPlant engineering
Area of applicationProcess industry
Number of Connections4
Number of rows2
Potentials2

Insulation characteristics

Overvoltage categoryIII
Degree of pollution3

Electrical properties

Rated surge voltage6 kV
Maximum power dissipation for nominal condition0.77 W

Connection data

Number of connections per level2
Nominal cross section2.5 mm²

Level 1+2

Screw threadM3
Tightening torque0.5 ... 0.6 Nm
Stripping length9 mm
Internal cylindrical gageA3
Connection in acc. with standardIEC 60947-7-1
Conductor cross section rigid0.14 mm² ... 4 mm²
Cross section AWG26 ... 12 (converted acc. to IEC)
Conductor cross section flexible0.14 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, solid0.14 mm² ... 1.5 mm²
2 conductors with same cross section, flexible0.14 mm² ... 1.5 mm²
2 conductors with same cross section, flexible, with ferrule without plastic sleeve0.14 mm² ... 1.5 mm²
2 conductors with the same cross section, flexible, with TWIN ferrule with plastic sleeve0.5 mm² ... 1.5 mm²
Nominal Current24 A
Maximum Load Current28 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 Voltage500 V
Nominal cross section2.5 mm²

Rated data (ATEX/IECEx)

Identification II 2 GD  Ex eb IIC Gb
Operating temperature range-60 °C ... 110 °C
Ex-certified accessories3047293 D-UTTB 2,5/4
Ex-certified accessories3047303 DP-UTTB 2,5/4
Ex-certified accessories3047316 ATP-UTTB 2,5/4
Ex-certified accessories1205053 SZS 0,6X3,5
Ex-certified accessories3022276 CLIPFIX 35-5
Ex-certified accessories3022218 CLIPFIX 35
List of bridgesPlug-in bridge / FBS 2-5 / 3030161
List of bridgesPlug-in bridge / FBS 3-5 / 3030174
List of bridgesPlug-in bridge / FBS 4-5 / 3030187
List of bridgesPlug-in bridge / FBS 5-5 / 3030190
List of bridgesPlug-in bridge / FBS 10-5 / 3030213
List of bridgesPlug-in bridge / FBS 20-5 / 3030226
Bridge data20 A / 2.5 mm²
Ex temperature increase40 K (22.5 A / 2.5 mm²)
Rated voltage352 V
for bridging with bridge352 V
- At bridging between non-adjacent terminal blocks352 V
- At bridging between non-adjacent terminal blocks via PE terminal block275 V
- At cut-to-length bridging with cover220 V
- At cut-to-length bridging with partition plate176 V
Rated Insulation Voltage320 V
Output(Permanent)

Ex level General

Rated current20 A
Maximum Load Current24 A

Ex connection data General

Torque range0.5 Nm ... 0.6 Nm
Nominal cross section2.5 mm²
Rated cross section AWG14
Connection capacity rigid0.14 mm² ... 4 mm²
Connection capacity AWG26 ... 12
Connection capacity flexible0.14 mm² ... 2.5 mm²
Connection capacity AWG26 ... 14
2 conductors with same cross section, solid0.14 mm² ... 1.5 mm²
2 conductors with the same cross-section AWG rigid26 ... 16
2 conductors with same cross section, stranded0.14 mm² ... 1.5 mm²
2 conductors with the same cross-section AWG flexible26 ... 16
Output(Permanent)

Ex level Level 1

Contact resistance0.6 mΩ
Output(Permanent)

Ex level Level 2

Contact resistance0.4 mΩ

Dimensions

Width5.2 mm
End cover width2.2 mm
Height69.9 mm
Depth64.4 mm
Depth on NS 35/7,565 mm
Depth on NS 35/1572.5 mm

Material specifications

Colorgray
Flammability rating according to UL 94V0
Insulating material groupI
Insulating materialPA
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) R22HL 1 - HL 3
Fire protection for rail vehicles (DIN EN 45545-2) R23HL 1 - HL 3
Fire protection for rail vehicles (DIN EN 45545-2) R24HL 1 - HL 3
Fire protection for rail vehicles (DIN EN 45545-2) R26HL 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

ResultTest passed

Temperature-rise test

Requirement temperature-rise test45 K
ResultTest passed
Short-time withstand current 2.5 mm²0.3 kA
Short-time withstand current 4 mm²0.48 kA
ResultTest passed

Power-frequency withstand voltage

Test voltage setpoint1.89 kV
ResultTest passed

Mechanical data

Open side panelYes

Mechanical strength

ResultTest passed

Attachment on the carrier

DIN rail/fixing supportNS 35
Test force setpoint1 N
ResultTest passed

Test for conductor damage and slackening

Rotation speed10 rpm
Revolutions135
Conductor cross section/weight0.14 mm² / 0.2 kg
Conductor cross section/weight2.5 mm² / 0.7 kg
Conductor cross section/weight4 mm² / 0.9 kg
ResultTest passed

Needle-flame test

Time of exposure30 s
ResultTest passed

Oscillation/broadband noise

SpecificationDIN EN 50155 (VDE 0115-200):2008-03
SpectrumService life test category 1, class B, body mounted
Frequencyf1 = 5 Hz to f2 = 150 Hz
ASD level1.857 (m/s²)²/Hz
Acceleration0.8g
Test duration per axis5 h
Test directionsX-, Y- and Z-axis
ResultTest passed

Shocks

SpecificationDIN EN 50155 (VDE 0115-200):2008-03
Pulse shapeHalf-sine
Acceleration5g
Shock duration30 ms
Number of shocks per direction3
Test directionsX-, Y- and Z-axis (pos. and neg.)
ResultTest 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 standardIEC 60947-7-1

Mounting

Mounting TypeNS 35/7,5
Mounting TypeNS 35/15
Accessories

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Additional Information

Pack Size50
Recommended
Sold in quantities of 50

Available for order

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