| Image | Part Number | Description / PDF | Quantity | Rfq |
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Weidmuller |
JUMPER TERM BLK 4POS SCREW |
0 |
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Weidmuller |
JUMPER TERM BLK 7POS FLAT PIN |
0 |
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Weidmuller |
JUMPER TERM BLK 3POS RING |
0 |
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Weidmuller |
JUMPER TERM BLK 1POS SCREW |
0 |
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Weidmuller |
QB 25 FOR 5.0/5.08MM PC BLOC |
0 |
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Weidmuller |
JUMPER TERM BLK 2POS RING |
0 |
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Weidmuller |
JUMPER TERM BLK 25POS ROUND PIN |
0 |
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Weidmuller |
JUMPER M2.5X10 |
0 |
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Weidmuller |
JUMPER TERM BLK 8POS SCREW-IN |
0 |
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Weidmuller |
JUMPER TERM BLK 2POS SCREW-IN |
0 |
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Weidmuller |
JUMPER TERM BLK 25POS ROUND PIN |
0 |
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Weidmuller |
JUMPER TERM BLK 2POS FLAT PIN |
0 |
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Weidmuller |
JUMPER TERM BLK 4POS SCREW |
0 |
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Weidmuller |
JUMPER TERM BLK 3POS LINK |
0 |
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Weidmuller |
JUMPER TERM BLK 3POS RING |
0 |
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Weidmuller |
JUMPER TERM BLK 2POS REDUCER |
0 |
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Weidmuller |
TERMINAL QB10/IP WSI 4 INSULATED |
0 |
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Weidmuller |
JUMPER TERM BLK 2POS SCREW-IN |
0 |
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Weidmuller |
JUMPER TERM BLK 12POS SCREW-IN |
0 |
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Weidmuller |
JUMPER TERM BLK 4POS FLAT PIN |
0 |
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Terminal block jumpers are conductive components used to establish electrical connections between adjacent terminals in terminal blocks. They serve as critical accessories in electrical systems, enabling circuit continuity, signal routing, and power distribution. With the increasing complexity of industrial automation and electrical systems, jumpers play a vital role in optimizing wiring efficiency, reducing installation time, and enhancing system reliability.
| Type | Functional Characteristics | Application Examples |
|---|---|---|
| Shorting Jumpers | Low-resistance copper/aluminum bridges for permanent connections | Current transformer circuits, power distribution panels |
| Bridge Jumpers | Modular design with multiple contact points | PLC control systems, relay panels |
| Removable Jumpers | Tool-free insertion/removal for maintenance flexibility | Test equipment, temporary wiring systems |
| Insulated Jumpers | Encapsulated design with protective housing | High-voltage switchgear, hazardous environments |
| Marking Jumpers | Integrated labeling for circuit identification | Control cabinets, industrial machinery |
Typical jumper assemblies consist of: 1) Conductive elements (copper alloys, tin-plated surfaces) 2) Insulation housing (PA66, UL94-V0 rated thermoplastics) 3) Contact springs (phosphor bronze with gold plating) 4) Mechanical locking features (snap-in or screw-fixed) 5) Optional marking inserts. The design ensures vibration resistance (up to 15G), IP20 protection rating, and compliance with IEC 60947 standards.
| Parameter | Typical Range | Importance |
|---|---|---|
| Rated Voltage | 250V-1000V AC/DC | Determines insulation requirements |
| Current Capacity | 10A-200A | Dictates conductor cross-section |
| Contact Resistance | <10m | Impacts thermal performance |
| Operating Temp. | -40 C to +120 C | Affects material selection |
| Short Circuit Withstand | 10kA-50kA | Safety and system protection |
Key industries include: - Industrial Automation (PLC cabinets, robotics) - Energy Systems (solar inverters, wind turbines) - Transportation (railway control systems, EV charging) - Building Infrastructure (HVAC systems, smart grids) - Test & Measurement (laboratory equipment, diagnostic tools)
| Manufacturer | Product Series | Key Features |
|---|---|---|
| Phoenix Contact | FK-U/ jumper series | Modular bridge design, 17.5mm pitch |
| Weidm ller | SAM series | Tool-free operation, color-coded variants |
| TE Connectivity | CHC jumpers | High vibration resistance, automotive grade |
| Wago | 287-series | CAGE CLAMP technology, 35mm DIN rail |
| Omron | V-terminal jumpers | UL/CSA certified, 50A rating |
Key considerations: 1) Electrical requirements (current/voltage matching) 2) Environmental conditions (temperature, corrosion) 3) Installation method (DIN rail, panel mount) 4) Maintenance needs (removable vs. fixed) 5) Compatibility with terminal block pitch (2.5mm to 100mm)
Current development trends include: - Miniaturization (sub-2.5mm pitch jumpers) - Smart integration (IoT-enabled monitoring jumpers) - Material innovation (graphene-enhanced conductors) - Modular systems (tool-less reconfiguration) - Sustainability (halogen-free materials, RoHS compliance)