Product Model
UKH 50-IB
Selling Points
- 1Ensures reliable cable connection with three-point centering of the conductor.
- 2Low contact resistance due to ribbing on the contact surface.
- 3Screw locking by spring-loaded elements in the clamping part for secure connections.
- 4Passed various tests including surge voltage, power-frequency withstand voltage, and mechanical stability.
- 5Compatible with NS 35/15, NS 32, and NS 35/15-2,3 mounting types for versatile installation options.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
Product type | High current terminal block | Number of positions | 1 |
Number of connections | 2 | Number of rows | 1 |
Potentials | 1 | Article revision | 15 |
Overvoltage category | III | Degree of pollution | 3 |
Rated surge voltage | 8 kV | Maximum power dissipation for nominal condition | 4.73 W |
Number of connections per level | 2 | Nominal cross section | 50 mm² |
Screw thread | M6 | Tightening torque | 6 ... 8 Nm |
Stripping length | 24 mm | Internal cylindrical gage | B10 |
Conductor cross section rigid | 16 mm² ... 70 mm² | Cross section AWG | 4 ... 2/0 (converted acc. to IEC) |
Conductor cross section flexible | 25 mm² ... 50 mm² | Conductor cross section, flexible [AWG] | 2 ... 2 (converted acc. to IEC) |
Conductor cross-section flexible (ferrule without plastic sleeve) | 25 mm² ... 50 mm² | Flexible conductor cross section (ferrule with plastic sleeve) | 25 mm² ... 50 mm² |
2 conductors with same cross section, solid | 10 mm² ... 16 mm² | 2 conductors with same cross section, flexible | 10 mm² ... 16 mm² |
2 conductors with same cross section, flexible, with ferrule without plastic sleeve | 10 mm² ... 16 mm² | Nominal current | 150 A |
Maximum load current | 150 A (with 50 mm² conductor cross section) | Nominal voltage | 1000 V |
Identification | II 2 GD Ex eb IIC Gb | Operating temperature range | -60 °C ... 110 °C |
Ex-certified accessories | 1203343 VDE-ISS 5
1201659 E/AL-NS 32
1201662 E/AL-NS 35 | List of bridges | Fixed bridge / FBI 2-20-EX / 0201113
Fixed bridge / FBI 3-20-EX / 0201812 |
Bridge data | 130.5 A / 50 mm² | Ex temperature increase | 40 K (146.5 A / 50 mm²) |
Rated voltage | 690 V | for bridging with bridge | 690 V |
Rated insulation voltage | 630 V | output | (Permanent) |
Rated current | 133 A | Maximum load current | 133 A |
Contact resistance | 0.1 mΩ | Torque range | 6 Nm ... 8 Nm |
Nominal cross section | 50 mm² | Rated cross section AWG | 1/0 |
Connection capacity rigid | 16 mm² ... 50 mm² | Connection capacity AWG | 6 ... 1/0 |
Connection capacity flexible | 25 mm² ... 50 mm² | Connection capacity AWG | 4 ... 1/0 |
2 conductors with same cross section, solid | 10 mm² ... 16 mm² | 2 conductors with the same cross-section AWG rigid | 8 ... 6 |
2 conductors with same cross section, stranded | 10 mm² ... 16 mm² | 2 conductors with the same cross-section AWG flexible | 8 ... 6 |
Width | 20 mm | Height | 70.5 mm |
Depth on NS 32 | 81 mm | Depth on NS 35/15 | 83.5 mm |
Color | gray (RAL 7042) | 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 50 mm² | 6 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 rpm | Revolutions | 135 |
Conductor cross section/weight | 25 mm² / 4.5 kg
50 mm² / 9.5 kg
70 mm²/10.4 kg | Result | Test passed |
Time of exposure | 30 s | 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 % |
Mounting type | NS 35/7,5
NS 35/15
NS 32
NS 35/15-2,3 |
Specifications may be subject to change without notice