UTI 16 BU
Product ID:21424
Updated: 2026/7/12
Key Features
- 1High current rating up to 76A for efficient power distribution.
- 2Plug-in termination for easy installation and reduced wiring time.
- 3Single-level design with a cable CSA of 6 to 25mm² for versatile applications.
- 4Blue color coding for clear identification in electrical systems.
- 5Durable construction with a voltage rating of 400V for reliable performance in harsh environments.
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Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Product type | Installation terminal block | Number of connections | 2 |
| Number of rows | 1 | Potentials | 1 |
| Article revision | 02 | Overvoltage category | III |
| Degree of pollution | 3 | Rated surge voltage | 6 kV |
| Maximum power dissipation for nominal condition | 2.43 W | Number of connections per level | 2 |
| Nominal cross section | 16 mm² | Screw thread | M5 |
| Tightening torque | 2.5 ... 3 Nm | Stripping length | 12 mm |
| Connection in acc. with standard | IEC 60947-7-1 | Conductor cross section rigid | 6 mm² ... 25 mm² |
| Cross section AWG | 8 ... 4 (converted acc. to IEC) | Conductor cross section flexible | 6 mm² ... 16 mm² |
| Conductor cross section, flexible [AWG] | 8 ... 6 (converted acc. to IEC) | Conductor cross-section flexible (ferrule without plastic sleeve) | 6 mm² ... 16 mm² |
| Flexible conductor cross section (ferrule with plastic sleeve) | 6 mm² ... 16 mm² | 2 conductors with same cross section, solid | 2.5 mm² ... 10 mm² |
| 2 conductors with same cross section, flexible | 2.5 mm² ... 6 mm² | 2 conductors with same cross section, flexible, with ferrule without plastic sleeve | 4 mm² ... 6 mm² |
| 2 conductors with the same cross section, flexible, with TWIN ferrule with plastic sleeve | 4 mm² ... 6 mm² | Nominal current | 76 A |
| Maximum load current | 76 A | Nominal voltage | 400 V |
| Nominal cross section | 16 mm² | Width | 12.2 mm |
| Height | 51 mm | Depth | 49.9 mm |
| Depth on NS 35/7,5 | 50.5 mm | Depth on NS 35/15 | 58 mm |
| Color | blue (RAL 5015) | Flammability rating according to UL 94 | V2 |
| 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 | Test voltage setpoint | 7.3 kV |
| Result | Test passed | Requirement temperature-rise test | Increase in temperature ≤ 45 K |
| Result | Test passed | Short-time withstand current 16 mm² | 1.92 kA |
| Short-time withstand current 25 mm² | 3 kA | Result | Test passed |
| Test voltage setpoint | 1.89 kV | Result | Test passed |
| Open side panel | No | Result | Test passed |
| DIN rail/fixing support | NS 35 | Test force setpoint | 5 N |
| Result | Test passed | Rotation speed | 10 rpm |
| Revolutions | 135 | Conductor cross section/weight | 6 mm² / 1.4 kg
16 mm² / 2.9 kg
25 mm² / 4.5 kg |
| Result | Test passed | Time of exposure | 30 s |
| Result | Test passed | Specification | DIN EN 50155 (VDE 0115-200):2008-03 |
| Spectrum | Service life test category 1, class B, body mounted | Frequency | f |
| 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 | 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 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 | 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
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