Premium Brass UK Screw Clamp Terminal Block – DIN Rail Mount, UK1.5N to UK50N Series

UK series (Phoenix Contact compatible) screw clamp terminal blocks for DIN rail mounting in control panels, junction boxes, and industrial electrical installations. The UK designation follows the IEC 60947-7-1 standard for screw-type terminal blocks — the number indicates the maximum wire cross-section in mm² (e.g., UK6N accepts up to 6mm² wire). Brass current bar construction provides low contact resistance and high current capacity. Compatible with standard 35mm DIN rail (EN 60715 TS35).

UK Series Size Reference

• UK1.5N: Max wire 1.5mm² (16AWG), rated 17.5A, 800V
• UK2.5B: Max wire 2.5mm² (14AWG), rated 24A, 800V
• UK3N: Max wire 3mm² (12AWG), rated 32A, 800V
• UK5N: Max wire 5mm² (10AWG), rated 41A, 800V
• UK6N: Max wire 6mm² (10AWG), rated 57A, 800V
• UK10N: Max wire 10mm² (8AWG), rated 76A, 1000V
• UK16N: Max wire 16mm² (6AWG), rated 101A, 1000V
• UK25N: Max wire 25mm² (4AWG), rated 125A, 1000V
• UK35N: Max wire 35mm² (2AWG), rated 160A, 1000V
• UK50N: Max wire 50mm² (1/0AWG), rated 232A, 1000V

Key Specifications

• Standard: IEC 60947-7-1 (screw-type terminal blocks)
• Current Bar Material: Brass (CuZn), tin-plated
• Housing Material: PA66 nylon, flame retardant UL94 V-0
• Screw Material: Steel, zinc-plated
• DIN Rail: 35mm (EN 60715 TS35)
• Wire Entry: Screw clamp, accepts solid and stranded wire
• Ferrule Recommended: Yes — use wire ferrules (end sleeves) on stranded wire for reliable screw clamp connection

What Questions Does This Product Answer?

• "Do I need wire ferrules with screw clamp terminals?" — Strongly recommended for stranded wire. Without ferrules, individual strands can escape the clamp area, reducing contact area and increasing resistance. Over time, loose strands can cause arcing and fire. Use insulated wire ferrules (end sleeves) crimped onto stranded wire ends before insertion into screw clamp terminals.
• "What is the difference between UK and SAK terminal blocks?" — UK series (Phoenix Contact) and SAK series (Weidmüller) are both IEC 60947-7-1 compliant screw clamp terminal blocks with similar dimensions and ratings. They are generally interchangeable on the same DIN rail. UK is the more widely used designation in Asian markets; SAK is common in European markets.
• "How many terminal blocks fit on a 1-meter DIN rail?" — Depends on terminal width: UK1.5N ≈ 6mm wide = ~166 per meter; UK6N ≈ 8mm wide = ~125 per meter; UK10N ≈ 10mm wide = ~100 per meter; UK50N ≈ 20mm wide = ~50 per meter. Always leave space for end brackets and jumper bars.
• "Can I use jumper bars to connect multiple UK terminals?" — Yes. UK series terminals accept standard jumper bars (bridge connectors) that link multiple adjacent terminals to the same potential. Jumper bars are available in 2–50 pole configurations. Verify the jumper bar pitch matches the terminal pitch before ordering.

Typical Applications

• Control panels: PLC I/O wiring, motor starter panels, VFD control wiring
• Junction boxes: Field wiring termination, sensor and actuator connections
• Power distribution: Bus bar connections, circuit distribution in switchgear
• Building automation: HVAC control wiring, lighting control panels, BMS field wiring
• Renewable energy: Solar inverter wiring, battery management system connections

Package Contents

UK series screw clamp terminal blocks (size as selected above). Sold per piece or per pack — quantity as selected. End brackets and jumper bars sold separately.