Teknomega PTB3312 heavy-duty single-pole blue power terminal block for aluminium and copper conductors from 16 to 95 mm² with a 245 A copper current rating for industrial electrical distribution.
£6.71
The Teknomega PTB3312 is a heavy-duty single-pole power terminal block engineered for the secure termination of large aluminium and copper conductors inside industrial switchboards, electrical distribution panels and automation cabinets. As part of the Teknomega PTB power terminal block range, it provides a reliable, space-saving solution for high-current electrical installations.
Manufactured using a robust PA66 UL94-V0 self-extinguishing insulating body, a tinned aluminium conductor block and galvanised steel clamping screws, the PTB3312 delivers excellent electrical conductivity, corrosion resistance and long-term mechanical strength. The conductor block is supplied pre-greased, helping ensure reliable cable termination without requiring additional grease during installation.
Supporting aluminium and copper conductors from 16 to 95 mm², the PTB3312 provides a continuous thermal current rating of 245 A (Cu) and 220 A (Al). Its blue housing makes it ideal for neutral conductor identification, while the versatile design allows installation on a 35 mm DIN rail or directly onto a panel.
The Teknomega PTB3312 provides secure termination for large conductors used in industrial power distribution systems. Its robust construction delivers dependable electrical continuity while maintaining a compact footprint inside electrical panels and switchboards.
Supporting both aluminium and copper conductors, the PTB3312 reduces the need for separate terminal block types. Its tinned aluminium conductor and pre-greased connection points provide excellent long-term electrical performance in demanding industrial environments.
| Phase | Single Phase |
|---|---|
| IP Rating | IP20 |
| Manufacturer | Teknomega |
| Series | PTB Power Terminal Blocks |
| Model | PTB3312 |
| Reference | PTB-1-95-B |
| 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) | 245 A |
| Rated thermal current (Al) | 220 A |
| Short-time withstand current | 11.4 kA for 1 second |
| Peak withstand current | 22.8 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 | Blue |
| 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 PTB3312 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 PTB3312 is rated at 245 A for copper conductors and 220 A for aluminium conductors.
The terminal can be mounted onto a standard 35 mm DIN rail or directly onto a panel using suitable fixings.
The blue housing is commonly used to identify neutral conductor connections within industrial electrical installations.
Teknomega PTB power terminal blocks are trusted by panel builders, OEM manufacturers and industrial electricians for dependable high-current conductor termination and long-term electrical reliability.
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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...