Terminal Blocks - Accessories

Terminal Blocks - Accessories - Jumpers

Image	Part Number	Description / PDF	Quantity	Rfq
	CC4/10 Quatech / B+B SmartWorx	JUMPER TERM BLK 10P SCREW-IN 5PC	0
	CC2.5/2 Quatech / B+B SmartWorx	JUMPER TERM BLK 2P SCREW-IN 25PC	0
	CCS10/3 Quatech / B+B SmartWorx	PUSH JUMPER 3POLE 10MM TB 20PC	0
	CCS4/10 Quatech / B+B SmartWorx	JUMPER TERM BLK 10P FLAT PIN 5PC	0
	SRSI-CC/20 Quatech / B+B SmartWorx	JUMPER BAR 20P SRSI SOCKET	0
	CC2.5/2T Quatech / B+B SmartWorx	JUMPER TERM BLK 2P SCREW-IN 25PC	0
	CCS4/4 Quatech / B+B SmartWorx	PUSH JUMPER 4POLE 4MM TB 15PC	0
	CCS4/3 Quatech / B+B SmartWorx	PUSH JUMPER 3POLE 4MM TB 20PC	0
	CC4/2 Quatech / B+B SmartWorx	JUMPER TERM BLK 2P SCREW-IN 25PC	0
	CC2.5/4 Quatech / B+B SmartWorx	JUMPER TERM BLK 4P SCREW-IN 15PC	0
	CCS2.5/3 Quatech / B+B SmartWorx	JUMPER TERM BLK 3P FLAT PIN 20PC	0
	CCS2.5/10 Quatech / B+B SmartWorx	JUMPER TERM BLK 10P FLAT PIN 5PC	0
	CC4/2C Quatech / B+B SmartWorx	JUMPER BAR 2P ER4C 25PC	0
	CC4/10C Quatech / B+B SmartWorx	JUMPER BAR 10P ER4C 5PC	0
	CC35/10 Quatech / B+B SmartWorx	JUMPER BAR 10P 35MM TB 5PC	0
	CC4/4C Quatech / B+B SmartWorx	JUMPER BAR 4P ER4C 15PC	0
	CC4/3C Quatech / B+B SmartWorx	JUMPER BAR 3P ER4C 20PC	0
	CC6/10 Quatech / B+B SmartWorx	JUMPER TERM BLK 10P SCREW-IN 5PC	0
	CCS2.5/2 Quatech / B+B SmartWorx	JUMPER TERM BLK 2P FLAT PIN 25PC	0
	CC35/2 Quatech / B+B SmartWorx	JUMPER BAR 2P 35MM TB 25PC	0

Terminal Blocks - Accessories - Jumpers

1. Overview

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.

2. Major Types and Functional Classification

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

3. Structure and Composition

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.

4. Key Technical Specifications

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

5. Application Fields

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)

6. Leading Manufacturers & Products

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

7. Selection Recommendations

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)

8. Industry Trends

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)