Product Model
UKH 70 BU
Selling Points
- 1High Load Capacity: Handles up to 192 A with a 70 mm² conductor cross section.
- 2Robust Design: Rated surge voltage of 8 kV ensures reliable operation in harsh environments.
- 3Versatile Applications: Suitable for railway, mechanical, and plant engineering industries.
- 4Compliance Standards: Meets IEC 60947-7-1 standards for connection and insulation.
- 5Durable Construction: Insulating material group I and inflammability class UL 94 V0 for safety and longevity.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
Product type | High current terminal block | Area of application | Railway industry
Machine building
Plant engineering |
Number of positions | 1 | Number of connections | 2 |
Number of rows | 1 | Potentials | 1 |
Article revision | 08 | Overvoltage category | III |
Degree of pollution | 3 | Rated surge voltage | 8 kV |
Maximum power dissipation for nominal condition | 6.27 W | Number of connections per level | 2 |
Nominal cross section | 70 mm² | Screw thread | M8 |
Tightening torque | 8 ... 10 Nm | Stripping length | 24 mm |
Internal cylindrical gage | A11 | Connection in acc. with standard | IEC 60947-7-1 |
Conductor cross section rigid | 16 mm² ... 95 mm² | Cross section AWG | 4 ... 3/0 (converted acc. to IEC) |
Conductor cross section flexible | 25 mm² ... 70 mm² | Conductor cross section, flexible [AWG] | 2 ... 2/0 (converted acc. to IEC) |
Conductor cross-section flexible (ferrule without plastic sleeve) | 16 mm² ... 70 mm² | Flexible conductor cross section (ferrule with plastic sleeve) | 16 mm² ... 70 mm² |
2 conductors with same cross section, solid | 16 mm² ... 25 mm² | 2 conductors with same cross section, flexible | 16 mm² ... 25 mm² |
2 conductors with same cross section, flexible, with ferrule without plastic sleeve | 16 mm² ... 25 mm² | Nominal current | 192 A |
Maximum load current | 192 A (with 70 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 | 70 mm² |
Identification | II 2 GD Ex eb IIC Gb | Operating temperature range | -60 °C ... 110 °C |
Ex-certified accessories | 1201934 VDE-ISS 6
1201659 E/AL-NS 32
1201662 E/AL-NS 35 | List of bridges | / FBI 2-20 N EX / 3213210
/ FBI 3-20 N EX / 3213211 |
Bridge data | 180 A / 70 mm² | Ex temperature increase | 40 K (180 A / 70 mm²) |
Rated voltage | 880 V (NS 35) | Rated insulation voltage | 800 V (NS 35)
630 V (NS 32) |
output | (Permanent) | Rated current | 180 A |
Maximum load current | 180 A | Contact resistance | 0.08 mΩ |
Torque range | 8 Nm ... 10 Nm | Nominal cross section | 70 mm² |
Rated cross section AWG | 2/0 | Connection capacity rigid | 16 mm² ... 95 mm² |
Connection capacity AWG | 4 ... 3/0 | Connection capacity flexible | 25 mm² ... 70 mm² |
Connection capacity AWG | 3 ... 2/0 | 2 conductors with same cross section, solid | 16 mm² ... 25 mm² |
2 conductors with the same cross-section AWG rigid | 4 ... 3 | 2 conductors with same cross section, stranded | 16 mm² ... 25 mm² |
2 conductors with the same cross-section AWG flexible | 4 ... 3 | Width | 20.3 mm |
Height | 70.5 mm | Depth | 78.3 mm |
Depth on NS 32 | 85 mm | Depth on NS 35/7,5 | 80 mm |
Depth on NS 35/15 | 87.5 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 |
Test voltage setpoint | 9.8 kV | Result | Test passed |
Requirement temperature-rise test | Increase in temperature ≤ 45 K | Result | Test passed |
Short-time withstand current 70 mm² | 8.4 kA | Result | Test passed |
Test voltage setpoint | 2.2 kV | Result | Test passed |
Open side panel | No | Result | Test passed |
DIN rail/fixing support | NS 32/NS 35 | Test force setpoint | 10 N |
Result | Test passed | Rotation speed | 10 (+/- 2) rpm |
Revolutions | 135 | Conductor cross section/weight | 16 mm² / 2.9 kg
70 mm²/10.4 kg
95 mm²/14 kg |
Result | Test passed | Time of exposure | 30 s |
Result | Test passed | Specification | DIN EN 50155 (VDE 0115-200):2022-06 |
Spectrum | Service life test category 2, bogie-mounted | Frequency | f |
ASD level | 6.12 (m/s²)²/Hz | Acceleration | 3.12g |
Test duration per axis | 5 h | Test directions | X-, Y- and Z-axis |
Result | Test passed | Specification | DIN EN 50155 (VDE 0115-200):2022-06 |
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, 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
NS 35/15-2,3
NS 32 |
Specifications may be subject to change without notice