Phoenix ContactFeed-through terminal blocks, multi-conductor terminal blocks, and multi-level terminal blocks
Product Model
UT 2,5-QUATTRO BU
Selling Points
- 1Up to 500V for reliable connections.
- 2Handles up to 30A for demanding applications.
- 35.2mm terminal block for space-efficient installations.
- 4Supports 12-26AWG wires for flexibility.
- 5Single through screw connection simplifies setup and maintenance.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
Product type | Multi-conductor terminal block | Area of application | Railway industry
Machine building
Plant engineering
Process industry |
Number of connections | 4 | Number of rows | 1 |
Potentials | 1 | Article revision | 16 |
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 | 4 | 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 mm² |
Nominal current | 24 A | Maximum load current | 30 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 |
Identification | II 2 GD Ex eb IIC Gb | Operating temperature range | -60 °C ... 110 °C |
Ex-certified accessories | 3047170 D-UT 2,5/4-QUATTRO
3047109 DS-UT 2,5/4
3047196 ATP-UT-QUATTRO
1204504 SZF 0-0,4X2,5
3022276 CLIPFIX 35-5
3022218 CLIPFIX 35 | List of bridges | Plug-in bridge / FBS 2-5 / 3030161
Plug-in bridge / FBS 3-5 / 3030174
Plug-in bridge / FBS 4-5 / 3030187
Plug-in bridge / FBS 5-5 / 3030190
Plug-in bridge / FBS 10-5 / 3030213
Plug-in bridge / FBS 20-5 / 3030226 |
Bridge data | 22 A / 2.5 mm² | Ex temperature increase | 40 K (24 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 | 275 V |
Rated insulation voltage | 320 V | output | (Permanent) |
Rated current | 21 A | Maximum load current | 25 A |
Contact resistance | 0.75 mΩ | 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 |
Width | 5.2 mm | End cover width | 2.2 mm |
Height | 65.4 mm | Depth | 46.9 mm |
Depth on NS 35/7,5 | 47.5 mm | Depth on NS 35/15 | 55 mm |
Color | blue (RAL 5015) | 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