JINH Barrier Terminal Blocks
JINH manufactures TB and TC series barrier terminal blocks for applications that require clear circuit separation, secure conductor clamping and convenient inspection. Molded barriers between adjacent terminals help reduce accidental contact and simplify organized wiring, while screw or bolt connections provide a firm mechanical connection for ring, fork and suitable bare-wire terminations.
The range includes compact multi-pole TB models rated from 15A to 100A and high-current TC models extending to 600A. Available configurations cover different pole counts, conductor ranges and installation requirements.
- Rated voltage: selected models up to 600V
- Rated current: approximately 15A–600A, depending on model
- Connection: screw or bolt-fixed termination
- Available configurations: multiple current ratings and pole counts
- Model families: TB series and TC series
What Is a Barrier Terminal Block?
A barrier terminal block is a multi-position electrical connector with an insulating wall between each connection point. Conductors are secured by screws, pressure plates or bolts, and the barriers help maintain separation between neighboring circuits. Depending on the model, conductors may be terminated directly or with compatible ring or fork terminals.
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TB and TC Barrier Terminal Block Range
Choose compact TB series blocks for organized multi-circuit wiring or TC series blocks for larger conductors and higher-current power connections. Confirm conductor size, rated current, rated voltage, pole count, installation space and applicable equipment standards before selection.
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Reliable Connections Across Low- and High-Current Circuits
JINH barrier terminal blocks allow designers to standardize wiring across different current levels without losing circuit visibility. Compact TB series blocks support multi-position connections in equipment and control assemblies, while TC series blocks provide larger conductors and bolt-fixed connections for higher-current circuits.
Separated positions make circuit identification easier during assembly and inspection. Transparent covers available on selected models help technicians check connection status while reducing accidental contact.
Application Scenario
Industrial Control Panels
Power Distribution Equipment
Machinery and Production Equipment
HVAC and Building Systems
Renewable Energy Equipment
Electrical Testing and Maintenance Panels
Benefits of Using Barrier Terminal Blocks
Clear Circuit Separation
Insulating barriers separate neighboring connection points and help reduce accidental bridging.
Broad Current and Wire Range
TB and TC families cover compact control wiring through higher-current power connections.
Secure Screw or Bolt Termination
Mechanical tightening provides a stable, inspectable connection when components are correctly matched.
Easier Inspection and Maintenance
Visible terminal positions and optional transparent covers simplify commissioning and service.
Flexible Pole Counts
Multiple configurations help match the required circuit count and available panel space.
Resource
Barrier Terminal Blocks FAQ
A barrier terminal block normally uses a molded base with separated screw or bolt connection positions and is fixed directly to a panel or device. A DIN rail terminal block clips onto a standard rail and is assembled as individual modular terminals. The correct format depends on panel layout, conductor range, maintenance method and applicable equipment requirements.
Check the circuit load, conductor size, ambient temperature, enclosure conditions and applicable derating rules. Select a model whose published voltage, current and conductor range meet the complete application. Do not select a terminal block by physical size alone.
Yes. JINH TB series products include several multi-pole configurations. Available pole counts vary by current family, so confirm the required circuit count in the model table or drawing.
Many screw- and bolt-type models accept compatible crimp terminals, but terminal size, screw size and conductor range must match the specific model. Review the product drawing before assembly.
Materials depend on the series and can include molded insulating bases, brass or nickel-plated brass conductors, transparent protective covers and plated steel screws. Refer to the individual model page for the exact specification.
JINH can evaluate sample, labeling, packaging and OEM requirements. Send the required current, voltage, wire range, pole count and annual quantity for confirmation.
