Phoenix UK 5/UK 6 Series Industrial Terminal Blocks Product Selection Guide
In industrial power distribution, control circuit wiring, and signal transmission scenarios, Phoenix UK 5/UK 6 series terminal blocks are widely used for their high current-carrying capacity, diversified functional configuration, and reliable industrial-grade performance. This guide sorts out the product codes, models, and detailed descriptions of the series to help you quickly select suitable terminal blocks for different 5mm²/6mm² circuit connection requirements.
1. Core Model List (With Product Descriptions)
| Product Code | Product Model | Product Description |
|---|---|---|
| UK 6 Series Terminal Blocks (6mm² Wire Compatibility) | ||
| 3004524 | UK 6N | UK 6 series basic terminal block, compatible with 6mm² wires, standard structure, cost-effective for general medium-power circuit connection |
| 3118203 | UK 6-FSI/C | UK 6 series terminal block with FSI/C special function, suitable for customized medium-power control circuit scenarios |
| 3001925 | UK 6-FSI/C-LED12 | UK 6 series terminal block with FSI/C function + 12V LED indicator, visual monitoring of 12V medium-power circuit status |
| 3001938 | UK 6-FSI/C-LED24 | UK 6 series terminal block with FSI/C function + 24V LED indicator, dedicated to 24V medium-power control circuit status monitoring |
| 3004171 | UK 6,3-HESI | UK 6.3 series terminal block with basic HESI indicator function, cost-effective circuit status monitoring solution for 6.3mm² wire circuits |
| 3004249 | UK 6,3-HESILA 250 | UK 6.3 series terminal block with 250V HESILA indicator, suitable for high-voltage medium-power circuit status display |
| 3004265 | UK 6,3-HESILED 24 | UK 6.3 series terminal block with 24V HESILED indicator, visual monitoring of 24V 6.3mm² wire circuit status |
| 3024753 | UK 6 N-PE/N | UK 6N series terminal block with PE grounding + N neutral wire identification, suitable for AC medium-power circuit wiring |
| 0719223 | UK 6 N RD | UK 6N series terminal block, red (RD) appearance, used for marking phase line or high-voltage warning circuits in 6mm² systems |
| 3004977 | UK 6 N BU | UK 6N series terminal block, blue (BU) appearance, ideal for identifying neutral line or control signal circuits in 6mm² systems |
| UK 5 Series Terminal Blocks (5mm² Wire Compatibility) | ||
| Basic & Color-coded Models | ||
| 3004016 | UK 5 | UK 5 series basic terminal block, compatible with 5mm² wires, standard structure for general low-medium power circuit connection |
| 3004090 | UK 5 BU | UK 5 series terminal block, blue appearance, facilitating identification of control/signal circuits in 5mm² wiring systems |
| 3004362 | UK 5 N | UK 5 series neutral terminal block, dedicated to neutral wire connection in AC 5mm² circuits |
| 3003965 | UK 5 N GN | UK 5N series terminal block, green (GN) appearance, used for marking grounding circuits in 5mm² systems |
| 3002908 | UK 5 N OG | UK 5N series terminal block, orange (OG) appearance, suitable for identifying alarm or emergency stop circuits in 5mm² systems |
| 3026696 | UK 5 N RD | UK 5N series terminal block, red appearance, ideal for phase line or high-voltage warning circuit identification in 5mm² systems |
| 3007327 | UK 5 N WH | UK 5N series terminal block, white (WH) appearance, used for general signal circuit identification in 5mm² systems |
| 3003952 | UK 5 N YE | UK 5N series terminal block, yellow (YE) appearance, dedicated to safety warning circuit identification in 5mm² systems |
| Double-circuit (TWIN) Models | ||
| 1923021 | UK 5-TWIN | UK 5 series double-circuit terminal block, two circuits integrated in one unit, saving 50% installation space for 5mm² dual-circuit parallel wiring |
| 1923047 | UK 5-TWIN BU | UK 5 series double-circuit terminal block, blue appearance, convenient for identifying double-circuit parallel groups in 5mm² systems |
| 1923157 | UK 5-TWIN RD | UK 5 series double-circuit terminal block, red appearance, suitable for double-circuit phase line connection in 5mm² AC systems |
| 1923076 | UK 5-TWIN-PE | UK 5 series double-circuit terminal block with PE grounding function, enhancing electrical safety of 5mm² double-circuit systems |
| Return & Marking Models | ||
| 3002597 | UK 5-RETURN | UK 5 series return terminal block, designed for current return circuit connection in 5mm² measurement and control systems |
| 3002490 | UK 5-RETURN BU | UK 5 series return terminal block, blue appearance, facilitating identification of return circuits in complex 5mm² wiring systems |
| 3002584 | UK 5-RETURN-PE | UK 5 series return terminal block with PE grounding function, ensuring safety of 5mm² current return circuits |
| 3004430 | UK 5-MTK | UK 5 series terminal block with MTK marking function, easy to label circuit information for 5mm² circuit maintenance |
| 3004032 | UK 5-MTK-P/P | UK 5 series terminal block with MTK-P/P dual marking function, suitable for dual-circuit or mixed signal/power circuit labeling in 5mm² systems |
| 3004058 | UK 5-MTK-P/P BU | UK 5 series terminal block with MTK-P/P dual marking function + blue appearance, combining identification and labeling for 5mm² control circuits |
| Indicator Models | ||
| 3004100 | UK 5-HESI | UK 5 series terminal block with basic HESI indicator function, cost-effective status monitoring for 5mm² general circuits |
| 3004472 | UK 5-HESI (5X20) | UK 5 series terminal block with HESI indicator (5×20 size), clear visual display for 5mm² circuit status monitoring |
| 3007916 | UK 5-HESI GY | UK 5 series terminal block with HESI indicator + gray (GY) appearance, suitable for neutral circuit status monitoring in 5mm² systems |
| 2202220 | UK 5-HESI LEUCHTANZEIGE 24 | UK 5 series terminal block with 24V HESI LED indicator, dedicated to 24V control circuit status monitoring in 5mm² systems |
| 3000539 | UK 5-HESI N | UK 5N series terminal block with HESI indicator, suitable for neutral circuit status monitoring in 5mm² AC systems |
| 3004142 | UK 5-HESILA 250 | UK 5 series terminal block with 250V HESILA indicator, high-voltage circuit status display for 5mm² systems |
| 3000542 | UK 5-HESILA 250 N | UK 5N series terminal block with 250V HESILA indicator, neutral circuit high-voltage status monitoring in 5mm² AC systems |
| 3004155 | UK 5-HESILA 500 | UK 5 series terminal block with 500V HESILA indicator, suitable for high-voltage 5mm² circuit status display |
| 3004126 | UK 5-HESILED 24 | UK 5 series terminal block with 24V HESILED indicator, visual monitoring of 24V control circuits in 5mm² systems |
| 3000540 | UK 5-HESILED 24 N | UK 5N series terminal block with 24V HESILED indicator, neutral circuit 24V status monitoring in 5mm² AC systems |
| 3000541 | UK 5-HESILED 60 N | UK 5N series terminal block with 60V HESILED indicator, medium-voltage circuit status display for 5mm² systems |
2. Quick Interpretation of Model Naming Rules
| Naming Segment | Meaning | Explanation |
|---|---|---|
| UK 5/UK 6/UK 6.3 | Series prefix | Phoenix UK series terminal blocks, the number represents compatible wire diameter (5mm²/6mm²/6.3mm²), matching different current-carrying requirements |
| N | Neutral function | Neutral terminal block, dedicated to neutral wire connection in AC circuits |
| -TWIN | Circuit configuration | Double-circuit integration, space-saving for dual-circuit parallel wiring |
| -RETURN | Special function | Return terminal block, for current return circuit connection in measurement and control systems |
| -PE | Safety function | Protective grounding function, mandatory for electrical safety in industrial environments |
| -FSI/C | Special control function | FSI/C customized function, tailored for specific control circuit scenarios |
| -HESI/HESILA/HESILED | Indicator function | - HESI: Basic indicator- HESILA: High-voltage indicator (250V/500V)- HESILED: LED indicator (12V/24V/60V), visual circuit status monitoring |
| -MTK/MTK-P/P | Marking function | - MTK: Basic marking function- MTK-P/P: Dual marking function, for mixed circuit labeling |
| RD/BU/GN/OG/WH/YE | Color suffix | Color coding for circuit identification, corresponding to phase line, neutral line, grounding, alarm, signal, warning circuits respectively |
3. Core Advantages of Phoenix UK 5/UK 6 Series Terminal Blocks
- Wide Wire Diameter CompatibilityCovers 5mm²/6mm²/6.3mm² wire specifications, matching low-medium power industrial circuit current-carrying requirements, suitable for power distribution, control and signal transmission scenarios.
- Diversified Functional ConfigurationIntegrates grounding (PE), indicator (HESI/HESILED), marking (MTK), double-circuit (TWIN) and return functions, meeting the needs of simple wiring to complex measurement and control system applications.
- Color Coding for Clear IdentificationProvides red, blue, green, orange, white, yellow color options, distinguishing different circuit types (phase line, neutral line, grounding, alarm, signal) at a glance, reducing wiring errors by 40%+.
- Compact & Space-saving DesignTWIN double-circuit models integrate two circuits in one unit, saving 50% installation space in control cabinets, ideal for dense wiring scenarios of small and medium-sized control systems.
- Industrial-grade ReliabilityAdopt flame-retardant materials and high-precision conductive components, with strong resistance to high temperature, humidity and electromagnetic interference, ensuring stable operation in harsh industrial environments.
4. Product Selection Suggestions
- Select by Wire Diameter & Current-carrying Requirement
- For 5mm² wire circuits: Choose UK 5 series models (e.g., 3004016, 1923021).
- For 6mm² wire circuits: Select UK 6 series models (e.g., 3004524, 3118203).
- For 6.3mm² wire circuits: Adopt UK 6.3 series indicator models (e.g., 3004265, 3004249).
- Select by Functional Requirements
- For electrical safety: Prioritize models with -PE suffix (e.g., 1923076, 3024753).
- For circuit status monitoring: Choose models with -HESI/HESILED/HESILA suffix (e.g., 3004126, 3004265).
- For space-saving dense wiring: Select -TWIN double-circuit models (e.g., 1923021, 1923047).
- For measurement and control system return circuits: Use -RETURN models (e.g., 3002597, 3002584).
- For circuit maintenance convenience: Adopt -MTK/MTK-P/P marking models (e.g., 3004430, 3004058).
- Select by Circuit Identification Needs
- For phase line/high-voltage warning: Choose red (RD) models (e.g., 0719223, 3026696).
- For neutral line/control signal: Select blue (BU) models (e.g., 3004977, 3004090).
- For grounding circuit: Use green (GN) models (e.g., 3003965).
- For alarm/emergency stop: Adopt orange (OG) models (e.g., 3002908).
- For safety warning: Select yellow (YE) models (e.g., 3003952).
Phoenix UK 5/UK 6 Series Industrial Terminal Blocks Product Selection Guide
Created on：2026-01-13 09:55
