Teknomega PTB3612 single-pole blue power terminal block for aluminium and copper conductors from 35 mm² to 300 mm², designed for industrial electrical distribution and neutral conductor applications.
£25.18
The Teknomega PTB3612 is a heavy-duty single-pole power terminal block designed for terminating large conductors in industrial switchboards, electrical distribution panels and automation cabinets. Also referenced as PTB-1-300-B, this blue terminal block supports both aluminium and copper conductors up to 300 mm², making it ideal for high-current feeder connections and demanding power distribution systems.
Manufactured with a durable PA66 UL94-V0 self-extinguishing insulating body and a tinned aluminium conductor block, the PTB3612 provides excellent electrical conductivity and corrosion resistance. The pre-greased terminal chamber helps minimise oxidation, ensuring dependable long-term performance when terminating aluminium conductors.
Supporting conductor sizes from 35 mm² to 300 mm², the PTB3612 is rated for 1000 V AC / 1500 V DC with an 8 kV impulse withstand voltage. Its compact design enables installation on DIN rail or directly onto mounting panels inside electrical enclosures.
The Teknomega PTB3612 provides a secure connection point for large power conductors used in industrial electrical systems. Its robust construction and high current capacity make it suitable for terminating feeder cables while maintaining low-resistance electrical connections in demanding applications.
Designed for switchboards, OEM equipment and automation panels, the PTB3612 combines durable materials with excellent electrical performance. Compatibility with both aluminium and copper conductors makes it an ideal solution for modern industrial power distribution and neutral conductor termination.
| Current | 440 A |
|---|---|
| Phase | Single Phase |
| IP Rating | IP20 |
| Manufacturer | Teknomega |
| Series | PTB Power Terminal Blocks |
| Model | PTB3612 |
| Reference | PTB-1-300-B |
| Product type | Power terminal block |
| Number of poles | 1 |
| Connections | 1 input / 1 output |
| Conductor size | 35 to 300 mm² (Al/Cu) |
| Current rating | 520 A (Cu), 440 A (Al) |
| Short-time withstand current (Icw) | 36 kA (1 s) |
| Peak withstand current (Ipk) | 75.6 kA |
| 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 × W × H) | approx. 132.3 × 42 × 77 mm |
| Weight | approx. 0.45 kg |
| Standards | EN 60947-7-1, EN 61238-1-1 |
| HS Code | 85369095 |
The PTB3612 is designed for terminating large aluminium and copper conductors in industrial switchboards, electrical distribution panels and automation systems.
The terminal accepts aluminium and copper conductors from 35 mm² up to 300 mm².
Yes. The tinned aluminium conductor block is designed for reliable termination of both aluminium and copper conductors.
The PTB3612 has a rated insulation voltage of 1000 V AC / 1500 V DC with an impulse withstand voltage of 8 kV.
The terminal can be mounted on a DIN rail or directly onto a panel inside electrical enclosures.
Teknomega PTB power terminal blocks are trusted by panel builders, OEM manufacturers and electrical engineers for delivering reliable high-current conductor connections in industrial power distribution systems.
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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...