Phoenix Contact 3031267 ST 2,5-TWIN-PE Protective conductor terminal block

The Phoenix Contact ST 2,5-TWIN-PE is a protective conductor terminal block with spring-cage connection, designed for safe and reliable grounding in industrial control panels and switchgear assemblies. With a nominal cross section of 2.5 mm² and accommodation of rigid conductors from 0.08 mm² to 4 mm², it mounts on NS 35/7.5 or NS 35/15 DIN rails in green-yellow for immediate protective conductor identification.

Technical specifications:

• Part designation: ST 2,5-TWIN-PE
• Catalog number: 3031267
• Manufacturer: Phoenix Contact
• EAN: 4017918186777
• Connection method: Spring-cage connection
• Number of connections: 3
• Nominal cross section: 2.5 mm²
• Conductor cross-section rigid: 0.08 mm² - 4 mm² (AWG 28-12)
• Conductor cross-section flexible: 0.08 mm² - 2.5 mm² (AWG 28-14)
• Conductor cross-section flexible, ultrasound-compressed: 0.34 mm² - 4 mm²
• Stripping length: 8 mm - 10 mm
• Rated surge voltage: 8 kV | Overvoltage category: III | Degree of pollution: 3
• Dimensions: W 5.2 mm x H 60.5 mm x D 36.5 mm (NS 35/7.5) / 44 mm (NS 35/15)
• Color: green-yellow | Insulating material: PA | Flammability: UL 94 V0
• Operating temperature: -60 °C to 110 °C
• ATEX/IECEx: II 2 GD Ex eb IIC Gb
• Approvals: CSA (13631), IECEE CB Scheme, KR
• Pack size: 50 pc | Country of origin: DE

Features and benefits:

• Spring-cage connection simplifies wiring of very small and flexible conductors
• Direct DIN rail contact provides fast, error-free grounding without additional wiring effort
• No cross-section restrictions when using conductors with ferrules
• Low-resistance connection to ground potential via the top-hat rail for high safety
• Fire protection certified to DIN EN 45545-2 (R22, R23, R24, R26 HL 1-HL 3) for railway applications

Applications:

• Protective conductor grounding in machine building and plant engineering control panels
• Railway industry switchgear and rolling stock wiring requiring DIN EN 45545-2 compliance
• Process industry installations and ATEX/IECEx Zone 2 explosive atmosphere environments

Compliant with IEC 60947-7-2 for protective conductor connections; UL 94 V0 flammability rated. Part of the Phoenix Contact CLIPLINE complete terminal block system with standardized bridging, marking, and testing accessories.

Also known as: Phoenix Contact ST 2,5-TWIN-PE, Phoenix 3031267, Phoenix Contact ground terminal block 2.5 mm², Phoenix Contact PE terminal block spring-cage.