Teknomega PTB3522 heavy-duty single-pole 2 input / 2 output power terminal block for aluminium and copper conductors up to 240 mm², suitable for industrial electrical distribution.
£31.36
The Teknomega PTB3522 is a heavy-duty single-pole power terminal block designed for high-capacity electrical distribution within industrial switchboards, automation cabinets and power distribution panels. Also referenced as PTB-2-240-B, this blue terminal block features a 2 input / 2 output configuration, making it ideal for branching large aluminium and copper conductors from a single supply point.
Manufactured with a durable PA66 UL94-V0 self-extinguishing insulating body and a tinned aluminium conductor block, the PTB3522 delivers excellent electrical conductivity while allowing direct connection of both aluminium and copper conductors. Pre-greased terminals help minimise oxidation and improve long-term connection reliability in demanding industrial environments.
Supporting conductor sizes from 35 mm² to 240 mm², the PTB3522 is rated for 1000 V AC / 1500 V DC with an 8 kV impulse withstand voltage. Its compact design allows installation on DIN rail or directly onto mounting panels inside electrical enclosures.
The Teknomega PTB3522 provides a safe and organised method of distributing high-current conductors inside industrial electrical panels. Its 2 input / 2 output configuration enables feeder cables to be branched efficiently while maintaining secure, low-resistance electrical connections.
Designed for switchboards, machine control panels and automation systems, the PTB3522 combines durable construction with dependable electrical performance. Compatibility with both aluminium and copper conductors makes it a versatile solution for modern industrial power distribution.
| Current | 380 A |
|---|---|
| Phase | Single Phase |
| IP Rating | IP20 |
| Manufacturer | Teknomega |
| Series | PTB Power Terminal Blocks |
| Model | PTB3522 |
| Reference | PTB-2-240-B |
| Product type | Power terminal block |
| Number of poles | 1 |
| Connections | 2 input / 2 output |
| Conductor size | 35 to 240 mm² (Al/Cu) |
| Current rating | 425 A (Cu), 380 A (Al) |
| Rated insulation voltage (Ui) | 1000 V AC / 1500 V DC |
| Impulse withstand voltage (Uimp) | 8 kV |
| Protection rating | IP20 |
| Insulating body | PA66 UL94-V0 |
| Conductor material | Tinned aluminium |
| Screw material | Galvanised steel |
| Maximum operating temperature | +85 °C |
| Colour | Blue |
| Mounting type | DIN rail or panel mounting |
| Dimensions (A × B × C) | approx. 122.5 × 64.8 × 71.4 mm |
| Weight | approx. 0.6 kg |
| Standards | EN 60947-7-1, EN 61238-1-1 |
| HS Code | 85369095 |
The PTB3522 is used for distributing and terminating large aluminium and copper conductors within industrial switchboards, automation panels and electrical distribution systems.
The terminal supports aluminium and copper conductors ranging from 35 mm² to 240 mm².
Yes. The tinned aluminium conductor block is designed for reliable connection of both aluminium and copper conductors.
The PTB3522 has a rated insulation voltage of 1000 V AC / 1500 V DC and an impulse withstand voltage of 8 kV.
The terminal can be mounted directly onto a DIN rail or fixed to a mounting panel within an electrical enclosure.
Teknomega PTB power terminal blocks are trusted by panel builders, OEM manufacturers and electrical engineers for delivering dependable high-current conductor connections in industrial power distribution systems.
● 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...