
UT 2,5 - Feed-through terminal block
Feed-through terminal block, nom. voltage: 1000 V, nominal current: 24 A, number of connections: 2, 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
- The large wiring space enables the connection of solid and stranded conductors without ferrules, even above the nominal cross section
- As well as saving space, the compact design enables user-friendly wiring in a small amount of space
- Optimum screwdriver guidance through closed screw shafts
- Tested for railway applications
- The cable entry funnel enables the use of conductors with ferrules and plastic collars within the nominal cross section
UT
The Phoenix Contact UT Series comprises feed-through terminal blocks that utilize screw connection technology, offering reliable and maintenance-free conductor connections for various industrial applications. These terminal blocks are designed to accommodate a wide range of conductor cross-sections, providing flexibility and ease of installation.
Key Features:
- ✅ Screw Connection Technology: The UT Series employs a screw connection method, ensuring secure and durable connections. The Reakdyn principle, a screw locking technique developed by Phoenix Contact, prevents loosening of terminal block screws, eliminating the need for retightening.
- ✅ Versatile Conductor Accommodation: These terminal blocks can connect solid and stranded conductors without ferrules, even above the nominal cross-section, due to their large wiring space. This feature allows for universal application across various conductor types and sizes.
- ✅ Compact Design: The UT Series offers a compact, space-saving design, making it ideal for smaller control cabinets and boxes where space is at a premium.
Product properties
Product family | UT |
Area of application | Railway industry |
Area of application | Machine building |
Area of application | Plant engineering |
Area of application | Process industry |
Number of Connections | 2 |
Number of rows | 1 |
Potentials | 1 |
Insulation characteristics
Overvoltage category | III |
Degree of pollution | 3 |
Electrical properties
Rated surge voltage | 8 kV |
Maximum power dissipation for nominal condition | 0.77 W |
Connection data
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 | 24 A |
Maximum Load Current | 32 A (with 4 mm² conductor cross section) |
Nominal Voltage | 1000 V |
Note | Note: Product releases, connection cross sections and notes on connecting aluminum cables can be found in the download area. |
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 | 3047028 D-UT 2,5/10 |
Ex-certified accessories | 3047167 ATP-UT |
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 | 21 A / 2.5 mm² |
Ex temperature increase | 40 K (23.3 A / 2.5 mm²) |
Rated voltage | 690 V |
for bridging with bridge | 690 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 | 275 V |
Rated Insulation Voltage | 630 V |
Output | (Permanent) |
Ex level General
Rated current | 21 A |
Maximum Load Current | 28 A |
Contact resistance | 0.41 mΩ |
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 |
Dimensions
Width | 5.2 mm |
End cover width | 2.2 mm |
Height | 47.7 mm |
Depth | 46.9 mm |
Depth on NS 35/7,5 | 47.5 mm |
Depth on NS 35/15 | 55 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
Test voltage setpoint | 9.8 kV |
Result | Test passed |
Power-frequency withstand voltage
Test voltage setpoint | 2.2 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 (+/- 2) 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 |
Oscillation/broadband noise
Specification | DIN EN 50155 (VDE 0115-200):2022-06 |
Spectrum | Service life test category 2, bogie-mounted |
Frequency | f1 = 5 Hz to f2 = 250 Hz |
ASD level | 6.12 (m/s²)²/Hz |
Acceleration | 3.12g |
Test duration per axis | 5 h |
Test directions | X-, Y- and Z-axis |
Shocks
Specification | DIN EN 50155 (VDE 0115-200):2022-06 |
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.) |
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 |
Why Proax for Phoenix Contact 3044076?
Proax is an authorized distributor of Phoenix Contact 3044076 and one of Phoenix Contact's largest distributors in North America. Our highly skilled in-house technical team is ready to assist with any technical needs.
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Pack Size | 50 |
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