Teknomega PTB3311 heavy-duty single-pole power terminal block for aluminium and copper conductors from 16 to 95 mm² with a 250 A copper current rating for industrial electrical distribution.
£6.71
The Teknomega PTB3311 is a heavy-duty single-pole power terminal block engineered for secure termination of large aluminium and copper conductors within industrial switchboards, power distribution panels and electrical control cabinets. As part of the Teknomega PTB power terminal block range, it provides a safe, reliable and space-efficient solution for high-current electrical connections.
Constructed with a robust PA66 UL94-V0 self-extinguishing insulating body, a tinned aluminium conductor block and galvanised steel clamping screws, the PTB3311 delivers outstanding electrical performance and long-term corrosion resistance. The terminal is supplied pre-greased, ensuring optimum conductor contact without requiring additional grease during installation.
Supporting aluminium and copper conductors from 16 to 95 mm², the PTB3311 offers a continuous thermal current rating of 250 A (Cu) and 220 A (Al). Its grey housing is ideal for phase and general power circuit identification, while the versatile design supports both 35 mm DIN rail and panel mounting.
The Teknomega PTB3311 is designed to provide secure termination for large power conductors used in industrial distribution systems. Its heavy-duty construction delivers dependable electrical continuity while maintaining a compact footprint inside switchboards and electrical panels.
Supporting both aluminium and copper conductors, the PTB3311 reduces the need for separate terminal types while ensuring excellent mechanical strength and electrical performance. The pre-greased tinned aluminium conductor block helps provide reliable long-term operation in demanding industrial environments.
| Phase | Single Phase |
|---|---|
| IP Rating | IP20 |
| Manufacturer | Teknomega |
| Series | PTB Power Terminal Blocks |
| Model | PTB3311 |
| Reference | PTB-1-95-G |
| Product type | Power terminal block |
| Number of poles | 1 |
| Connections | 1 input / 1 output |
| Copper conductor range | 16–95 mm² |
| Aluminium conductor range | 16–95 mm² |
| Rated thermal current (Cu) | 250 A |
| Rated thermal current (Al) | 220 A |
| Short-time withstand current | 14.4 kA for 1 second |
| Peak withstand current | 30.2 kA |
| Rated insulation voltage | 1,000 V AC / 1,500 V DC |
| Impulse withstand voltage | 8 kV |
| Protection rating | IP20 |
| Pollution degree | 3 |
| Comparative tracking index | 600 V |
| Insulating body | PA66 UL94-V0 |
| Conductor material | Tinned aluminium |
| Screw material | Galvanised steel |
| Housing colour | Grey |
| Mounting type | 35 mm DIN rail or panel mounting |
| Cable stripping length | 27 mm |
| Hex key size | 5 mm |
| Tightening torque | 20 Nm |
| Maximum operating temperature | +85 °C |
| Dimensions (H × W × D) | approx. 89.1 × 24.3 × 49.6 mm |
| Weight | approx. 0.09 kg |
| Pack quantity | 3 |
| Standards | EN 60947-7-1 and EN 61238-1-1 |
| HS Code | 85369095 |
The PTB3311 is designed to terminate large aluminium and copper conductors inside industrial switchboards, electrical distribution panels and control cabinets.
The terminal accepts aluminium and copper conductors from 16 to 95 mm².
The PTB3311 is rated at 250 A for copper conductors and 220 A for aluminium conductors.
The terminal can be installed on a standard 35 mm DIN rail or directly onto a panel using suitable mounting hardware.
The PTB3311 complies with EN 60947-7-1 and EN 61238-1-1 for industrial power terminal blocks.
Teknomega PTB power terminal blocks are trusted by panel builders, OEM manufacturers and industrial electricians for reliable high-current conductor termination and safe industrial power distribution.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
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...