PTB3121 Teknomega 1 Pole 4 Way connector Power Terminals

Why Choose the Teknomega PTB3121 Power Terminal Block?

The Teknomega PTB3121 is a compact single-pole power terminal block designed for secure high-current conductor connections inside industrial switchboards, electrical cabinets and control panels. This model provides two conductor connections for aluminium or copper cables up to 35 mm², allowing efficient power distribution while maintaining a compact DIN-rail installation footprint.

The terminal block is built with a durable PA66 UL94-V0 self-extinguishing insulating body and a tinned aluminium conductive block, ensuring strong electrical conductivity and reliable cable termination. With a rated insulation voltage of 1000 V AC / 1500 V DC and an impulse withstand voltage of 8 kV, the PTB3121 delivers dependable performance in demanding industrial installations.

Key Features

• Single-pole power terminal block for industrial electrical panels.
• 2 conductor connections supporting aluminium or copper cables.
• Maximum conductor capacity up to 35 mm².
• PA66 UL94-V0 self-extinguishing insulating body for improved electrical safety.
• Tinned aluminium conductive block for reliable electrical contact.
• Galvanised steel screws providing secure cable termination.
• DIN rail mounting for quick installation inside switchboards.
• IP20 protection rating suitable for installation inside electrical enclosures.
• Grey housing commonly used for phase or general circuit identification.

Technical Specifications

• Manufacturer: Teknomega
• Model: PTB3121
• Reference: PTB-2-35-G
• Product type: Power terminal block
• Poles: 1
• Connections: 2 terminals
• Conductor material: Tinned aluminium
• Insulating body: PA66 UL94-V0
• Maximum conductor size (Cu/Al): 2.5 – 35 mm²
• Rated current: approx. 135 A (Cu) / 120 A (Al)
• Short-time withstand current (Icw): 4.2 kA (1 s)
• Peak short-circuit current (Ipk): 6.2 kA
• Rated insulation voltage (Ui): 1000 V AC / 1500 V DC
• Impulse withstand voltage (Uimp): 8 kV
• Pollution degree: 3
• Protection degree: IP20
• Maximum operating temperature: +85 °C
• Dimensions: approx. 47.4 × 27.3 × 40.3 mm
• Weight: approx. 0.043 kg
• Standards: EN 60947-7-1, EN 61238-1-1

Typical Applications

• Power connections within industrial switchboards.
• Electrical control panels and automation cabinets.
• Machine building and OEM electrical assemblies.
• Power or neutral conductor distribution in panel wiring.
• Compact high-current cable termination points.

Trusted by Panel Builders

Teknomega PTB power terminal blocks are widely used by electrical engineers and panel builders to create safe, organised and reliable power distribution systems within industrial electrical installations.