UK Series DIN Rail Terminal Block 125A – 1-In 2/4/6 Out Electrical Distribution Box

Models: UK207 / UK211 / UK215 / UK407 / UK411 / UK415

UK-series DIN rail terminal blocks are heavy-duty power distribution terminals designed for high-current panel wiring applications. The 1-in multi-out configuration allows a single large-gauge supply conductor to be distributed to multiple smaller-gauge branch circuits within a control panel or distribution board — eliminating the need for separate bus bars or junction boxes for each distribution point. The DIN rail mount (EN 50022, 35mm) provides tool-free installation and removal from standard control panel rails.

Model Reference Guide

• UK207: 1-in 2-out, 125A, suitable for 70mm² input / 35mm² output
• UK211: 1-in 4-out, 125A, suitable for 70mm² input / 16mm² output
• UK215: 1-in 6-out, 125A, suitable for 70mm² input / 10mm² output
• UK407: 1-in 2-out, 125A, 4-pole (L1+L2+L3+N) — 3-phase + neutral distribution
• UK411: 1-in 4-out, 125A, 4-pole — 3-phase + neutral distribution
• UK415: 1-in 6-out, 125A, 4-pole — 3-phase + neutral distribution

Key Specifications

• Current Rating: 125A continuous
• Voltage Rating: 1000V AC/DC
• Input Wire Range: Up to 70mm² (2/0 AWG)
• Output Wire Range: Up to 35mm² (2 AWG) per output
• Termination: Screw clamp (bolt-type)
• DIN Rail: EN 50022, 35mm standard rail
• Housing Material: PA66 nylon, UL94 V-0 flame retardant
• Contact Material: Copper alloy, tin-plated
• Operating Temperature: -40°C to +105°C
• Standard: IEC 60947-7-1 compliant

UK Series vs Standard Terminal Blocks — When to Use Each

• Standard terminal blocks (e.g., Phoenix Contact UK 2.5, Wago 281): For signal and control wiring up to 2.5–10mm². Used for PLC I/O wiring, sensor connections, and control circuit distribution. Not suitable for main power distribution.
• UK series heavy-duty (this product): For main power distribution at 125A. Used for incoming supply distribution to multiple branch circuits, motor starter panels, and high-current distribution boards. The 1-in multi-out design replaces a bus bar + individual terminals combination.

What Questions Does This Product Answer?

• "What is the difference between UK207 and UK215?" — UK207 = 1-in 2-out (2 output terminals). UK215 = 1-in 6-out (6 output terminals). Both are rated 125A. Choose based on how many branch circuits you need to distribute from a single supply point.
• "Can I use UK series terminals for 3-phase distribution?" — Yes. UK407/UK411/UK415 are 4-pole versions (L1+L2+L3+N) for 3-phase + neutral distribution. Each pole is rated 125A independently.
• "What torque should I use for UK series terminal screws?" — Typically 4–6 Nm for the main input terminal (70mm² bolt), 2–3 Nm for output terminals. Always use a calibrated torque screwdriver — under-torquing causes high resistance and overheating; over-torquing strips the terminal threads.
• "Do UK series terminals require ferrules on stranded wire?" — Yes, strongly recommended. Ferrules (end sleeves) prevent stranded wire from splaying under the screw clamp, which causes individual strands to miss the contact area and increases resistance. Use the correct ferrule size for each wire cross-section.

Typical Applications

• Industrial control panels: Main supply distribution to motor starters, VFDs, and branch circuit breakers
• Distribution boards: Incoming supply distribution to multiple outgoing circuits
• Generator sets: Output distribution to multiple load circuits
• Renewable energy: Solar inverter output distribution, battery bank connection points
• Marine panels: Shore power distribution, generator output distribution

Package Contents

1 × UK series DIN rail terminal block (model as selected above). DIN rail not included.