Teknomega PTB3422 single-pole two-way blue power terminal block for aluminium and copper conductors from 35 to 150 mm², rated at 320 A for copper and 290 A for aluminium.
£18.78
The Teknomega PTB3422 is a heavy-duty single-pole power terminal block developed for the secure distribution of high-current aluminium and copper conductors within industrial switchboards, electrical distribution panels and automation cabinets. Its practical two-way conductor configuration provides a reliable connection point for demanding neutral power circuits while helping panel builders maintain a compact, orderly installation.
Constructed with a durable PA66 UL94-V0 self-extinguishing insulating body and cover, a tinned aluminium conductor block and galvanised steel clamping screws, the PTB3422 delivers dependable electrical conductivity, corrosion resistance and mechanical strength. The conductive body is supplied pre-greased to improve electrical contact and help protect aluminium and copper conductors against oxide formation.
The PTB3422 accepts aluminium and copper conductors up to 150 mm² and features a blue housing for clear neutral conductor identification. It can be installed on a standard 35 mm DIN rail or mounted directly onto a panel, providing installation flexibility for industrial power distribution and electrical control applications.
The Teknomega PTB3422 provides a secure and efficient method of connecting large neutral conductors in industrial electrical installations. Its robust conductor block and strong screw-clamping arrangement maintain dependable cable retention under demanding operating conditions, making the terminal suitable for incoming supplies, neutral distribution circuits and high-current panel connections.
Compatibility with both aluminium and copper cables allows panel builders and machine manufacturers to standardise their connection components across a wider range of installations. The tinned, pre-greased aluminium conductor helps maintain consistent electrical performance while reducing the additional preparation normally required when terminating aluminium conductors.
With its compact blue insulating enclosure and flexible mounting arrangement, the PTB3422 is well suited to new panel construction, machinery upgrades and maintenance projects where safe, clearly identified neutral connections are required.
| Phase | Single Phase |
|---|---|
| IP Rating | IP20 |
| Manufacturer | Teknomega |
| Series | PTB3 Power Terminal Blocks |
| Model | PTB3422 |
| Manufacturer reference | PTB-2-150-B |
| Product type | Power terminal block |
| Number of poles | 1 |
| Configuration | Two-way conductor connection |
| Copper conductor range | 35–150 mm² |
| Aluminium conductor range | 35–150 mm² |
| Rated thermal current, copper | 320 A |
| Rated thermal current, aluminium | 290 A |
| Short-time withstand current | 18 kA for 1 second |
| Peak withstand current | 36 kA |
| Rated insulation voltage | 1,000 V AC / 1,500 V DC |
| Rated impulse withstand voltage | 8 kV |
| Protection rating | IP20 |
| Pollution degree | 3 |
| Comparative tracking index | 600 V |
| Insulating body and cover | PA66 UL94-V0 |
| Conductor material | Tinned aluminium |
| Screw material | Galvanised steel |
| Housing colour | Blue |
| Mounting type | 35 mm DIN rail or panel mounting |
| Panel mounting screws | M5 |
| Cable stripping length | 30 mm |
| Hex key size | 8 mm |
| Tightening torque, 35–95 mm² | 20 Nm |
| Tightening torque, 120–150 mm² | 30 Nm |
| Maximum continuous operating temperature | +85 °C |
| Dimensions (H × W × D) | 96.6 × 51.3 × 59.2 mm |
| Weight | 0.291 kg |
| Pack quantity | 3 pieces |
| Standards | EN 60947-7-1 and EN 61238-1-1 |
| HS Code | 85369095 |
The PTB3422 is used to connect and distribute large aluminium or copper conductors within industrial switchboards, distribution panels and automation cabinets. Its blue housing makes it particularly suitable for neutral conductor circuits.
The terminal accepts aluminium and copper conductors from 35 to 150 mm².
The PTB3422 has a rated thermal current of 320 A for copper conductors and 290 A for aluminium conductors.
Yes. The PTB3422 can be installed on a standard 35 mm DIN rail or mounted directly onto a panel using suitable M5 fixings.
No. The conductive body is supplied pre-greased to improve electrical conduction and protect against oxide formation, so additional grease is not normally required on the cable.
The blue housing provides clear visual identification for neutral conductor connections within industrial electrical installations.
Teknomega PTB power terminal blocks are trusted by panel builders, machine manufacturers, OEMs and electrical contractors for dependable high-current conductor termination and industrial power distribution.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...