Selling Points
- 1The UKKB 3 terminal block is designed for space-saving applications, making it ideal for DIN rail mounting.
- 2With a rated surge voltage of 6 kV and a pollution degree of 3, this terminal block ensures reliable and durable connections.
- 3Supports conductor cross sections from 0.2 mm² to 4 mm², accommodating various wire sizes (24-12 AWG).
- 4Features screw connections and a mounting type of NS 35/7.5, NS 35/15, and NS 32 for effortless installation.
- 5Meets IEC 60947-7-1 standards and is certified with CE, RoHS, CQC, and ISO 9001 for quality assurance.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
Product type | Multi-level terminal block | Product family | UKKB |
Number of connections | 4 | Number of rows | 2 |
Potentials | 2 | Article revision | 09 |
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 | 2 | Nominal cross section | 2.5 mm² |
Rated cross section AWG | 12 | Screw thread | M3 |
Tightening torque | 0.5 ... 0.6 Nm | Stripping length | 8 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 ... 1.5 mm² | Cross-section with insertion bridge, rigid | 2.5 mm² |
Cross-section with insertion bridge, flexible | 2.5 mm² | 2 conductors with same cross section, solid | 0.2 mm² ... 1 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 ... 1.5 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 | 32 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 | Width | 5.2 mm |
End cover width | 2.5 mm | Height | 67 mm |
Depth on NS 32 | 67 mm | Depth on NS 35/7,5 | 62 mm |
Depth on NS 35/15 | 69.5 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 | 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 |
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 | 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 32 |
Specifications may be subject to change without notice