UKK 80A/125A/160A/250A/400A/500A Single-In Multiple-Out High Current Distribution Block, 690V IEC
Brief Introduction
UKK series unipolar power distribution terminal blocks are high-current DIN rail mounted junction boxes, designed for single main wire input split to multiple branch circuits. Full range covers UKK80A, UKK125A, UKK160A, UKK250A, UKK400A, UKK500A with rated current from 80A up to 500A, universal rated voltage 690V IEC, widely used in power distribution cabinets, inverter control boxes, solar energy, industrial machinery and building power systems.
Adopt high-conductivity nickel-plated brass busbar inside, thick conductive plate for stable heat dissipation, no overheating under full load. Housing made of UL94 V0 flame-retardant PA66 nylon, transparent top cover allows visual inspection of wire connection status. Standard 35mm DIN rail snap mounting, with reserved flange hole for panel screw fixing, IP20 protection grade for indoor cabinet use.
Screw locking connection fits solid copper cables; each model matches different input & output wire cross-section from 2.5mm² to 95mm². Available in blue, yellow, green, red transparent covers for phase/neutral/earth circuit identification. All products pass CE, UL, ROHS certification, factory bulk supply with free sample testing and OEM custom printing service.
Core Advantages
- Complete current range 80A~500A, one series meets all medium & high power distribution demands
- Single-in multi-out split design, replace messy branch wire junction inside control cabinet
- Nickel-plated thick brass conductor, excellent heat dissipation, long service life without oxidation
- Transparent flame retardant cover, real-time check wiring tightness for safety maintenance
- Dual installation: 35mm DIN rail quick assembly + panel flange screw mounting
- UL94 V0 fireproof PA66 shell, anti-high temperature, anti-aging, safe for industrial environment
- Multi-color transparent cover options for easy circuit classification (L/N/PE)
- Full export certifications, stable stock, flexible MOQ for global electrical distributors & equipment manufacturers
Full Series Unified Specification Table
| Item | Standard Parameter for All UKK Series |
|---|---|
| Product Type | Unipolar single-in multiple-out distribution terminal block |
| Rated Voltage | 690V IEC |
| Mounting Method | 35mm DIN rail + flange screw panel fixing |
| Protection Grade | IP20 |
| Housing Material | PA66 UL94 V0 flame retardant nylon |
| Conductor Material | Nickel-plated thick brass busbar |
| Lock Screw | Zinc steel metric screw, stable clamping force |
| Optional Cover Color | Blue, Yellow, Green, Red transparent cover |
| Certifications | CE, UL, ROHS, REACH |
| Operating Temp | -40℃ ~ +105℃ |
Each Model Current & Wire Matching
- UKK-80A: 80A, Input 6-16mm², Output 2.5-16mm²
- UKK-125A: 125A, Input 10-35mm², Output 2.5-16mm²
- UKK-160A: 160A, Input 10-35mm², Output 2.5-16mm²
- UKK-250A: 250A, Input 16-50mm², Output 4-25mm²
- UKK-400A: 400A, Input 25-70mm², Output 6-35mm²
- UKK-500A: 500A, Input 35-95mm², Output 10-50mm²
Application Scenarios
- Low voltage power distribution cabinet main line shunting
- Solar photovoltaic combiner box internal power split
- Inverter, frequency converter control cabinet wiring
- Industrial machine equipment power junction box
- Commercial building power distribution panel
- Elevator, air compressor heavy current control circuit
- New energy storage cabinet wiring system
Installation Steps
- Strip cable insulation according to matching wire range, clean copper surface burr
- Loosen top metal screw, insert stripped copper wire fully into wiring hole
- Tighten screw with standard torque to lock wire firmly, slightly pull wire to test stability
- Buckle transparent cover for insulation protection
- Snap terminal onto standard 35mm DIN rail or fix via side flange hole with screw