Product Description
120A DC Terminal Block for Battery and Power Distribution Systems
The SL-120A-C 120A DC Terminal Block is a square, panel-mounted electrical connection component designed for power distribution and battery energy storage equipment. Featuring a double-threaded connection structure, it provides two threaded connection interfaces within a compact terminal assembly.
With a rated current of 120A and a rated voltage of 600V DC, this terminal block is intended for compatible DC electrical installations, including battery enclosures, inverter cabinets, power distribution panels, and industrial electrical equipment.
The SL-120A-C combines an H62 brass conductive component with an insulated square housing. Red and black options are available for equipment manufacturers and panel builders who require different terminal colors for wiring identification.
Key Features of the SL-120A-C Square Terminal Block
1. Double-Threaded Terminal Configuration
Unlike the single-threaded SL-120A-A model, the SL-120A-C features a double-threaded connection arrangement.
This configuration provides threaded interfaces for electrical connections on opposite sides of the terminal assembly, making it a potential option for panel-through connection applications.
The final conductor arrangement should follow the manufacturer’s installation drawing and approved connection requirements.
2. 120A Current Capacity
The SL-120A-C is specified with a rated current of 120A, making it suitable for electrical equipment requiring a terminal connection within this current rating.
When selecting the terminal block, equipment designers should consider conductor size, contact resistance, operating temperature, and the installation environment.
3. H62 Brass Conductive Component
The conductive structure is manufactured from H62 brass, a material widely used for electrical terminals and connecting hardware.
Its combination of conductivity and mechanical strength supports use in appropriately designed electrical connection assemblies.
Correct fastening and compatible conductor terminals are essential for maintaining reliable contact during operation.
4. Insulated Housing with Protective Cover
The terminal block incorporates PA66 insulating components, as specified in the customer’s general product documentation.
The insulating structure provides mechanical support and helps isolate the conductive connection from surrounding equipment components.
The protective housing also provides a defined physical boundary around the terminal assembly.
5. Compact Panel-Mounting Structure
The square terminal design allows the SL-120A-C to be positioned on suitable equipment panels.
Its mounting configuration is useful for manufacturers designing battery cabinets, inverter enclosures, and DC distribution assemblies.
Installation dimensions, mounting holes, and fastening hardware should be checked against the corresponding product drawing before panel fabrication.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | SL-120A-C |
| Product Name | 120A DC Terminal Block |
| Rated Current | 120A |
| Rated Voltage | 600V DC |
| Connection Structure | Double-Threaded |
| Conductive Material | H62 Brass |
| Insulation Material | PA66 |
| Color Options | Red / Black |
| Mounting Method | Panel Mounting |
| Thread Specification | Refer to Product Drawing |
| Mounting Dimensions | Refer to Product Drawing |
Product Dimension Drawing
Applications of the 120A DC Terminal Block
Battery Energy Storage Systems
The SL-120A-C can serve as a connection interface in battery enclosures and associated DC electrical equipment, subject to the system’s rated current and installation requirements.
Inverter Cabinets
The terminal block can be integrated into compatible inverter assemblies that require designated connections between internal and external DC wiring.
DC Distribution Panels
Its square mounting configuration makes it an option for DC power distribution panels where insulated conductor connection points are required.
Industrial Power Equipment
The SL-120A-C can also be considered for electrical testing equipment, power supply assemblies, and industrial machinery where its electrical and mechanical specifications are suitable.
Why Choose the SL-120A-C 120A DC Terminal Block?
The SL-120A-C offers a combination of double-threaded connections, H62 brass conductive components, and an insulated square housing.
Its 120A current rating, 600V DC specification, and red or black color options make it a potential connection component for battery equipment manufacturers, power system integrators, and electrical panel builders.
For applications requiring a different terminal arrangement, the single-threaded SL-120A-A is available within the same product series.
FAQ
What is the rated voltage of the SL-120A-C DC terminal block?
The SL-120A-C is specified for 600V DC, with a rated current of 120A.
What is the difference between the SL-120A-A and SL-120A-C?
The SL-120A-A uses a single-threaded configuration, while the SL-120A-C has a double-threaded connection structure. Both belong to the 120A square terminal block series.
Can the SL-120A-C be used in inverter equipment?
Yes. It is intended for compatible DC power connection applications, including inverter assemblies. The installation must meet the equipment's current, voltage, and mechanical requirements.
What colors are available for the SL-120A-C?
The customer-provided product images show red and black housing options.
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