Phoenix Contact 3031377 ST 4 BU Feed-through terminal block 32A number of

The Phoenix Contact ST 4 BU (catalog number 3031377) is a single-level feed-through terminal block rated at 800 V and 32 A, using spring-cage connection for vibration-resistant, maintenance-free conductor termination. It accepts rigid conductors from 0.08 mm² to 6 mm² and mounts on NS 35/7.5 and NS 35/15 DIN rails. Supplied in blue (RAL 5015) in packs of 50.

Technical specifications:

• Part designation: ST 4 BU
• Catalog number: 3031377
• Manufacturer: Phoenix Contact
• EAN: 4017918186845
• Product type: Feed-through terminal block, 1 level, 2 connections
• Nominal voltage: 800 V
• Nominal current: 32 A
• Maximum load current: 40 A (with 6 mm² conductor)
• Rated surge voltage: 8 kV
• Connection method: Spring-cage connection, stripping length 8 mm - 10 mm
• Conductor cross-section rigid: 0.08 mm² - 6 mm²
• Conductor cross-section flexible: 0.08 mm² - 4 mm²
• Mounting type: NS 35/7.5, NS 35/15
• Dimensions: W 6.2 mm x H 56 mm x D 36.5 mm (NS 35/7.5) / 44 mm (NS 35/15)
• Color: blue (RAL 5015)
• Insulating material: PA, flammability rating UL 94 V0
• Operating temperature range: -60°C to 85°C
• Overvoltage category: III, degree of pollution: 3
• Weight (excl. packing): 6.468 g
• Pack size: 50 pc, country of origin: DE

Features and benefits:

• One-handed wiring with no cross-section restriction when using conductors with ferrules
• Vibration-resistant spring-cage contact provides secure, maintenance-free conductor retention
• ATEX/IECEx certified (II 2 GD Ex eb IIC Gb) for use in hazardous area installations
• Passes DIN EN 45545-2 fire protection requirements (R22-R26, HL 1-3) for railway vehicles
• Compatible with the full CLIPLINE complete range of bridging, marking, and testing accessories

Applications:

• Power and signal distribution in machine building and plant engineering control panels
• Railway rolling stock wiring and control systems requiring DIN EN 45545-2 compliance
• Process industry field junction boxes and marshalling cabinets
• Hazardous area terminal assemblies requiring ATEX/IECEx-certified components

Compliant with IEC 60947-7-1. Part of the Phoenix Contact CLIPLINE complete terminal block system.

Also known as: Phoenix Contact ST 4 BU, Phoenix 3031377, ST4BU, Phoenix Contact 4 mm² blue spring-cage terminal block.