Product Model
UKN 2,5 BU
Selling Points
- 1High load current up to 32 A with 4 mm² conductor cross section.
- 2Current carrying capacity of the neutral busbar up to 140 A.
- 3Rated surge voltage of 6 kV for enhanced reliability.
- 4Special and hybrid connection method for versatile applications.
- 5Insulating material PA with inflammability class according to UL 94 V2 for safety.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
General | For secure fastening of the neutral busbar, supports must be set at the beginning and end of each terminal strip as well as every 20 cm on longer terminal strips. | Product type | Installation terminal block |
Number of connections | 2 | Number of rows | 1 |
Potentials | 1 | Overvoltage category | III |
Degree of pollution | 3 | Rated surge voltage | 6 kV |
Current carrying capacity of the neutral busbar | 140 A | Number of connections per level | 2 |
Nominal cross section | 2.5 mm² | Screw thread | M3 |
Note | Terminal point | Tightening torque | 0.6 ... 0.8 Nm |
Stripping length | 7 mm | Connection in acc. with standard | IEC 60947-7-1 |
Conductor cross section rigid | 0.2 mm² ... 4 mm² | Cross section AWG | 24 ... 12 (converted acc. to IEC) |
Conductor cross section flexible | 0.2 mm² ... 2.5 mm² | Conductor cross section, flexible [AWG] | 24 ... 14 (converted acc. to IEC) |
Conductor cross-section flexible (ferrule without plastic sleeve) | 0.25 mm² ... 2.5 mm² | Flexible conductor cross section (ferrule with plastic sleeve) | 0.25 mm² ... 2.5 mm² |
2 conductors with same cross section, solid | 0.2 mm² ... 1.5 mm² | 2 conductors with same cross section, flexible | 0.2 mm² ... 1.5 mm² |
2 conductors with same cross section, flexible, with ferrule without plastic sleeve | 0.25 mm² ... 1 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 | 400 V | Nominal cross section | 2.5 mm² |
Width | 6.2 mm | End cover width | 1.5 mm |
Color | blue | Flammability rating according to UL 94 | V2 |
Insulating material group | I | Insulating material | PA |
Static insulating material application in cold | -40 °C | Temperature index of insulation material (DIN EN 60216-1 (VDE 0304-21)) | 125 °C |
Relative insulation material temperature index (Elec., UL 746 B) | 125 °C | 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 2.5 mm² | 0.3 kA |
Short-time withstand current 4 mm² | 0.48 kA | Result | Test passed |
Test voltage setpoint | 1.89 kV | Result | Test passed |
Open side panel | Yes | Result | Test passed |
DIN rail/fixing support | NS 32/NS 35 | Test force setpoint | 1 N |
Result | Test passed | Rotation speed | 10 rpm |
Revolutions | 135 | Conductor cross section/weight | 0.2 mm² / 0.2 kg
2.5 mm² / 0.7 kg
4 mm² / 0.9 kg |
Result | Test passed | Time of exposure | 30 s |
Result | Test passed | Connection in acc. with standard | IEC 60947-7-1 |
Mounting type | NS 35/7,5
NS 35/15
NS 32 | Screw thread | M2,5 |
Specifications may be subject to change without notice