The AS2.5/4R is a 4-pole red plug-in bridging jumper designed for 2.5 sq.mm modular terminal block systems, used for creating a common electrical connection between multiple adjacent terminals in industrial wiring applications. This accessory is mainly used in control panels, PLC cabinets, machine wiring systems, automation panels, and electrical distribution assemblies where one signal or power source needs to be distributed across several terminals in a clean and organized manner.
Instead of connecting separate jumper wires between terminal blocks, the AS2.5/4R offers a compact bridging solution that allows 4 adjacent terminal points to be electrically linked together through a single plug-in component. This reduces panel clutter, saves installation time, and improves wiring efficiency in industrial electrical systems.
The red colour (R variant) is specifically useful for phase identification, positive DC circuits, warning circuits, emergency signal wiring, or colour-coded electrical distribution applications. In industrial control panels, colour coding helps technicians identify specific circuits quickly, making maintenance and troubleshooting faster and more accurate.
One of the major advantages of the AS2.5/4R is its 4-position commoning design, which distributes one electrical potential across four connected terminal points. This makes it highly useful in applications such as signal commoning, phase distribution, DC positive wiring, and grouped terminal interconnections.
The jumper is made using a high-conductivity metal contact strip that ensures efficient current transfer with minimal voltage loss. The insulated outer body provides protection against accidental contact and improves handling safety during installation or servicing.
Its plug-in installation design makes it easy for electricians to insert the jumper directly into the terminal block bridging slot without extra tools or additional wiring work. This simplifies assembly and improves the professional appearance of control panels.
The AS2.5/4R is commonly used in:
Because of its compact size and durable design, the AS2.5/4R helps reduce installation time while maintaining safe and reliable electrical bridging in industrial applications.
With its red circuit identification colour, 4-pole bridging design, secure plug-in fit, and industrial-grade conductivity, the AS2.5/4R is a practical accessory for professional electrical panel builders and industrial automation engineers.
| Specification | Details |
|---|---|
| Product Model | AS2.5/4R |
| Product Type | Plug-in Bridging Jumper |
| Compatible Terminal Size | 2.5 sq.mm |
| Number of Poles | 4 |
| Colour | Red |
| Function | Terminal Bridging / Commoning |
| Connection Type | Plug-in |
| Contact Material | High Conductivity Metal |
| Housing Material | Insulated Thermoplastic |
| Mechanical Fit | Secure |
| Conductivity | High |
| Contact Resistance | Low |
| Installation | Tool-free plug-in |
| Corrosion Resistance | Yes |
| Maintenance | Low maintenance |
The AS2.5/4R is suitable for:
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