This comparison examines the Ergom ZJUN-2x50 PE single-pole DIN rail terminal block in yellow and green alongside alternative solutions designed for secure electrical connections and grounding in distribution boards. All products serve similar roles in electrical installations, but differ in connection technologies, conductor compatibility, and color designations.
⚙️ The following specifications comparison table outlines the core characteristics, such as product type, color code, wire compatibility, and application scope, helping you understand the practical differences between the options.
| Comparison parameter | Ergom ZJUN-2x50 PE | Phoenix Contact PT 4 PE | NORDEL NLT250 | Ergom ZJUN-2x50/BL | Phoenix Contact UTI 16-PE | NORDEL NLT135 | Practical significance |
|---|
| Product type | DIN rail earth terminal block | Protective conductor terminal block | Universal earthing terminal block | Single-rail terminal block (blue) | Protective conductor terminal block | Universal earthing terminal block | All items are built for control panels, but Ergom ZJUN-2x50/BL is blue for neutral wiring while the rest are designed for protective grounding. |
| Color coding | Yellow-green | Green and yellow | Yellow-green | Blue | Green and yellow | Yellow-green | Yellow-green is the standard for PE protective grounding circuits, whereas blue identifies neutral conductors. |
| Conductor compatibility | Not specified | Not specified | Aluminum and copper conductors, 2.5–50 mm² | Not specified | Not specified | Aluminum and copper conductors, 2.5–35 mm² | NORDEL products support both aluminum and copper conductors across a broad cross-section range, offering greater cabling flexibility. |
| Connection technology | Standard connection | Push-in technology | Not specified | Standard connection | Screw connection | Not specified | Phoenix Contact PT 4 PE features fast Push-in technology, while UTI 16-PE utilizes traditional screw connection for high contact reliability. |
◎ The suitability table below evaluates which product matches specific user needs, installation environments, and application scenarios.
| Use case | Recommended product | Why |
|---|
| Standard protective grounding in distribution boards | Ergom ZJUN-2x50 PE | Provides secure electrical connections and reliable grounding for industrial and commercial electrical systems. |
| Fast tool-free installation | Phoenix Contact PT 4 PE | Utilizes advanced Push-in connection technology for efficient installation and maintenance-free operation. |
| Handling larger aluminum and copper cables | NORDEL NLT250 | Supports conductors ranging from 2.5 to 50 mm² and works with both aluminum and copper wires. |
| Neutral conductor organization | Ergom ZJUN-2x50/BL | Features a blue color designation optimized for wiring organization in distribution panels. |
| Professional screw-clamp grounding | Phoenix Contact UTI 16-PE | Employs screw connection technology to ensure high contact quality in professional electrical systems. |
The Ergom ZJUN-2x50 PE terminal block is ideally suited for standard grounding applications and reliable power distribution in commercial and industrial control cabinets. Choose it when you need a dependable yellow-green earthing component. If your project involves aluminum conductors, NORDEL alternatives are more suitable, while Phoenix Contact options with Push-in technology are best for faster installation.
