Phoenix ContactFeed-through terminal blocks, multi-conductor terminal blocks, and multi-level terminal blocks
Product Model
UK 3

Key Features
- 1Built with high-quality PA insulating material and rated for 800V nominal voltage.
- 2Screw connection method ensures a tight and reliable connection.
- 3Passed rigorous tests including surge voltage, power-frequency withstand voltage, and mechanical stability.
- 4Suitable for a wide range of applications with a cross-sectional area of 0.2 mm² to 4 mm².
- 5Meets IEC 60947-7-1 standards with guaranteed back and finger protection.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Product type | Feed-through terminal block | Number of connections | 2 |
| Number of rows | 1 | Potentials | 1 |
| Article revision | 05 | Overvoltage category | III |
| Degree of pollution | 3 | Rated surge voltage | 8 kV |
| Maximum power dissipation for nominal condition | 0 W | Number of connections per level | 2 |
| Screw thread | M3 | Tightening torque | 0.5 ... 0.8 Nm |
| Stripping length | 8 mm | Connection in acc. with standard | IEC / EN |
| 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 |
| 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 ... 1.5 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 (with 4 mm² conductor cross section) |
| Nominal voltage | 800 V | Connection in acc. with standard | UL |
| Cross section AWG | 28 ... 12 (converted acc. to IEC) | Nominal current | 20 A |
| Nominal voltage | 600 V | Nominal current | 25 A |
| Nominal voltage | 600 V | Width | 5.2 mm |
| End cover width | 1.8 mm | Height | 42.5 mm |
| Depth on NS 32 | 52 mm | Depth on NS 35/7,5 | 47 mm |
| Depth on NS 35/15 | 54.5 mm | Color | gray (RAL 7042) |
| Flammability rating according to UL 94 | V2 | Insulating material group | I |
| Insulating material | PA | 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 | 9.8 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 | 2 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 (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 (storage/transport) | 30 % ... 70 % | Connection in acc. with standard | IEC / EN
UL |
| Mounting type | NS 32
NS 35/15
NS 35/7,5 |
Specifications may be subject to change without notice
