Phoenix ContactFeed-through terminal blocks, multi-conductor terminal blocks, and multi-level terminal blocks
Product Model
UKK 3-MSTB-5,08-PE

Selling Points
- 1Supports screw/plug-in connections with a pitch of 5.08 mm.
- 2Features PA insulating material with a rated surge voltage of 4 kV.
- 3Accommodates conductors from 0.2 mm² to 2.5 mm².
- 4Meets overvoltage category III and pollution degree 3 standards.
- 5Mounts on NS 35/7,5, NS 35/15, and NS 32 DIN rails.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Parameter | Value | Parameter | Value |
---|---|---|---|
Product type | Ground terminal block | Product family | UKK 3-MSTB |
Number of positions | 1 | Pitch | 5.08 mm |
Number of connections | 4 | Number of rows | 2 |
Article revision | 06 | Overvoltage category | III |
Degree of pollution | 3 | Rated surge voltage | 4 kV |
Maximum power dissipation for nominal condition | 0 W | Grounding foot | Yes |
Nominal cross section | 2.5 mm² | Screw thread | M3 |
Note | Please observe the current carrying capacity of the DIN rails. | Tightening torque | 0.5 ... 0.6 Nm |
Stripping length | 8 mm | Internal cylindrical gage | A3 |
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 |
Width | 5.08 mm | End cover width | 2.5 mm |
Height | 50 mm | Depth on NS 35/7,5 | 53.5 mm |
Pitch | 5.08 mm | Color | green-yellow |
Flammability rating according to UL 94 | V2 | Insulating material group | I |
Insulating material | PA | Contact surface | Tin Sn |
Static insulating material application in cold | -60 °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 |
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 | Open side panel | Yes |
Insertion/withdrawal cycles | 100 | Specification | DIN EN 50155 (VDE 0115-200):2022-06 |
Spectrum | Service life test category 1, class B, body mounted | Frequency | f |
ASD level | 0.964 (m/s²)²/Hz | Acceleration | 0.58g |
Test duration per axis | 5 h | Test directions | X-, Y- and Z-axis |
Result | Test passed | Specification | DIN EN 50155 (VDE 0115-200):2018-05 |
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 (max. operating temperature see derating curve) | 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 |
Specifications may be subject to change without notice