Teknomega PTB3112 blue single-pole two-way power terminal block for copper and aluminium conductors from 2.5 to 35 mm².
£3.07
The Teknomega PTB3112 is a compact and dependable single-pole, two-way power terminal block designed for secure high-current conductor connections within industrial switchboards, control panels and electrical distribution systems. Featuring a blue insulating body for neutral conductor identification, it accommodates both copper and aluminium conductors up to 35 mm², making it ideal for industrial power distribution and panel building applications.
Manufactured using a durable PA66 UL94-V0 self-extinguishing insulating body, a tinned aluminium conductor block and galvanised steel terminal screws, the PTB3112 delivers excellent electrical conductivity, corrosion resistance and long-term mechanical reliability. The conductor is supplied pre-greased to minimise oxidation and simplify installation while ensuring dependable electrical performance.
Rated at 135 A for copper conductors and 120 A for aluminium conductors, with a 1000 V AC / 1500 V DC insulation rating and an 8 kV impulse withstand voltage, the PTB3112 provides reliable performance for neutral distribution, machinery wiring and industrial electrical installations.
The Teknomega PTB3112 provides a secure and compact connection point for neutral conductors in industrial electrical panels. Its robust construction and compatibility with both copper and aluminium conductors simplify wiring while ensuring dependable long-term electrical performance.
Designed for OEM machinery, switchboard manufacture and industrial automation, the PTB3112 combines compact dimensions with high current capacity, making it an excellent choice wherever reliable neutral conductor distribution is required.
| Phase | Single Phase |
|---|---|
| IP Rating | IP20 |
| Manufacturer | Teknomega |
| Series | PTB3 |
| Model | PTB3112 |
| Reference | PTB-1-35-B |
| Product type | Power terminal block |
| Number of poles | 1 |
| Connections | 2-way (1 input / 1 output) |
| Copper conductor size | 2.5 to 35 mm² |
| Aluminium conductor size | 2.5 to 35 mm² |
| Continuous thermal current (Cu) | 135 A |
| Continuous thermal current (Al) | 120 A |
| Short-time withstand current (Icw) | 4.2 kA (1 second) |
| Peak withstand current (Ipk) | 6.2 kA |
| Rated insulation voltage (Ui) | 1000 V AC / 1500 V DC |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Pollution degree | 3 |
| Comparative tracking index | 600 V |
| Protection rating | IP20 |
| Mounting | 35 mm DIN rail |
| Insulating material | PA66 UL94-V0 |
| Conductor material | Tinned aluminium |
| Screw material | Galvanised steel |
| Maximum operating temperature | +85 °C |
| Dimensions (H × W × D) | 47.4 × 16.3 × 40.3 mm |
| Weight | Approx. 0.025 kg |
| Standards | EN 60947-7-1, EN 61238-1-1 |
| HS Code | 85369095 |
The PTB3112 is designed to provide a secure high-current connection point for neutral conductors within industrial electrical panels and switchboards.
The terminal accepts both copper and aluminium conductors from 2.5 mm² to 35 mm².
The PTB3112 is rated at 135 A for copper conductors and 120 A for aluminium conductors.
The terminal clips directly onto a standard 35 mm DIN rail for fast installation inside switchboards and electrical enclosures.
The PTB3112 complies with EN 60947-7-1 and EN 61238-1-1.
Teknomega PTB power terminal blocks are trusted by electrical engineers, OEM manufacturers and panel builders for their compact design, mixed-conductor compatibility and dependable performance in demanding industrial applications.
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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...