KNIFE DISCONNECT TERMINAL BLOCK 3046278

Product Description

The Knife Disconnect Terminal Block (3046278) is a DIN rail-mounted industrial terminal block manufactured by Phoenix Contact. It is designed for safe electrical isolation, circuit testing, and maintenance operations in control panels and automation systems.

This terminal block includes an integrated disconnect knife mechanism, allowing circuits to be safely opened without removing wiring—commonly used in PLC panels, instrumentation loops, and signal distribution systems.

Key Features

• Knife disconnect function for safe circuit isolation
• Screw connection technology for strong, vibration-proof wiring
• Suitable for 0.14 – 6 mm² conductor cross-section
• Compact DIN rail mounting design (NS 35 standard rail)
• High current handling up to 20 A
• 500 V nominal voltage rating
• Easy maintenance and testing of field circuits
• Colour-coded (blue) for signal identification
• High mechanical durability for industrial environments
• Suitable for control panel and instrumentation wiring

Technical Specifications

• Product Type: Knife Disconnect Terminal Block
• Model: 3046278 (UT 4-MT BU)
• Manufacturer: Phoenix Contact
• Rated Voltage: 500 V
• Rated Current: 20 A
• Rated Cross Section: 4 mm²
• Conductor Range: 0.14 … 6.0 mm² (AWG 26 – 10)
• Connection Type: Screw connection
• Mounting Type: DIN rail (NS 35 / 7.5 & 15)
• Width: 6.2 mm
• Length: ~57.8 mm
• Number of Connections: 2
• Rated Surge Voltage: 6 kV
• Operating Temperature: industrial standard (-20°C to +60°C typical panel use)
• Protection Degree: IP20 (panel mounted)