Phoenix Contact PTI 2,5-PE/L/NT Installation Multi-level Terminal Block, Push-in, 3-Level, 2.5 mm², Grey

In industrial control panels and distribution boards, electricians need a compact and reliable solution for connecting protective earth, line, and neutral conductors in a single terminal block. The Phoenix Contact PTI 2,5-PE/L/NT installation multi-level terminal block answers this need with a three-level design that integrates PE, L, and NT functions in one housing. Its push-in connection technology allows for fast, tool-free wiring of solid and flexible conductors, significantly reducing installation time. With a nominal cross section of 2.5 mm² and a rated current of 24 A, it is suitable for a wide range of building and machine wiring applications. The grey polyamide housing is halogen-free and flame-retardant to UL 94 V0, ensuring safety in demanding environments.

Key specifications

• Type: Installation multi-level terminal block
• Connection method: Push-in
• Number of levels: 3 (PE/L/NT)
• Number of connections: 6
• Nominal cross section: 2.5 mm²
• Rated voltage (IEC): 400 V
• Rated current (IEC): 24 A
• Conductor cross section solid: 0.14 - 4 mm²
• Conductor cross section flexible: 0.14 - 4 mm²
• Conductor cross section AWG: 26 - 12
• Mounting type: DIN rail (NS 35/7,5, NS 35/15)
• Colour: Grey
• Insulating material: Polyamide (PA)
• Flammability rating: UL 94 V0
• Stripping length: 10 mm
• Pollution degree: 3
• Operating temperature: -60 °C to 105 °C
• Approvals: UL, cUL, VDE, EAC, KEMA-KEUR

Why choose it

The PTI 2,5-PE/L/NT stands out for its space-saving three-level design, which consolidates PE, L, and NT connections into a single block, reducing wiring complexity and panel footprint. The push-in technology eliminates the need for special tools, enabling faster and more consistent terminations. Its robust polyamide housing and wide temperature range make it suitable for both indoor and outdoor applications. Compliance with international standards such as UL, VDE, and KEMA-KEUR ensures global acceptance and reliability.

Ideal use cases

• Building installation: distribution boards for lighting and power circuits
• Machine building: control panels requiring compact multi-conductor termination
• Renewable energy: solar inverter and wind turbine wiring
• Industrial automation: sensor and actuator connection in harsh environments

Good to know

This terminal block is part of the Phoenix Contact PTI series, known for its modular and versatile design. It can be mounted on standard DIN rails NS 35/7,5 and NS 35/15. The push-in connection accepts both solid and flexible conductors with ferrules, and the 10 mm stripping length ensures reliable contact. The grey colour is standard for neutral and PE functions, aiding in circuit identification. For optimal performance, use conductors within the specified cross-section range and ensure proper torque when securing to the rail.