Product Description
200A Square Terminal Block for High-Current DC Connections
The SL-200A-A 200A Square Terminal Block is a panel-mounted electrical connection component intended for battery energy storage systems, DC power distribution equipment, and industrial electrical assemblies.
Rated at 200A and 600V DC, this square terminal block provides a connection interface for compatible power conductors in equipment requiring higher-current DC connections.
The SL-200A-A features a single-threaded terminal structure with H62 brass conductive components and an insulating housing. Its enclosed configuration helps organize electrical connections within equipment panels while separating the conductive parts from surrounding mounting surfaces.
Red and black housing options are available for different wiring identification requirements.
Key Features of the SL-200A-A Terminal Block
1. 200A Rated Current for DC Systems
The SL-200A-A is specified for electrical applications requiring a terminal connection rated at 200A.
This current rating makes it an option for compatible battery equipment, DC distribution panels, and power conversion assemblies.
When selecting the terminal block, engineers should verify conductor size, operating current, electrical contact conditions, and the thermal characteristics of the complete installation.
2. Single-Threaded Connection Structure
The SL-200A-A belongs to the single-threaded Type A series.
This configuration provides a threaded connection interface for compatible cable lugs and fastening hardware.
The corresponding 200A-T engineering drawing shows an M8×22 thread specification. However, this dimension should be confirmed for the SL-200A-A before being used as a final installation requirement.
3. H62 Brass Conductive Components
The conductive terminal structure uses H62 brass, an alloy commonly employed in electrical connection components.
According to the supplied 200A engineering drawing, nickel-plated or tin-plated surface treatments are specified for the metallic components.
These finishes provide surface protection and can help maintain appropriate electrical contact when used with compatible termination hardware.
4. Reinforced PA66 Insulating Housing
The terminal housing uses PA66+GF30 engineering plastic according to the corresponding 200A drawing.
The insulating structure supports the conductive assembly and helps provide separation from surrounding electrical equipment components.
A removable protective cover is included in the design to provide physical protection around the terminal connection.
5. Square Panel-Mounting Configuration
The SL-200A-A is intended for installation on electrical panels or suitable enclosure surfaces.
The available 200A-T drawing shows a square mounting arrangement with a 35.5 × 35.5 mm base.
This configuration can be incorporated into appropriately prepared equipment panels. Before machining enclosure openings, installers should confirm the exact model drawing, installation clearances, and fastening requirements.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | SL-200A-A |
| Product Name | 200A Square Terminal Block |
| Rated Current | 200A |
| Rated Voltage | 600V DC |
| Connection Type | Single-Threaded |
| Thread Specification | M8 × 22 (Pending Model Confirmation) |
| Conductive Material | H62 Brass |
| Surface Treatment | Nickel-Plated / Tin-Plated |
| Insulation Material | PA66+GF30 |
| Housing Color | Red / Black |
| Mounting Method | Panel Mounting |
| Mounting Base | 35.5 × 35.5 mm (Pending Model Confirmation) |
| Overall Height | 68.7 mm (Pending Model Confirmation) |
Product Dimension Drawing

Applications of the 200A Square Terminal Block
Battery Energy Storage Systems
The SL-200A-A can provide an insulated electrical connection point in compatible battery enclosures and energy storage power distribution assemblies.
DC Power Distribution Panels
This 200A terminal block can be integrated into DC distribution cabinets requiring designated power conductor connection points.
Inverter and Power Conversion Equipment
It may be used in suitable inverter cabinets and power conversion assemblies where the specified current and voltage ratings meet equipment requirements.
Industrial Electrical Enclosures
The square panel-mounting design can also support electrical connections in industrial power supply cabinets, testing equipment, and other compatible electrical installations.
Why Choose the SL-200A-A 200A Square Terminal Block?
The SL-200A-A combines a 200A current rating, single-threaded connection design, H62 brass conductive structure, and insulated square housing.
Its panel-mounting configuration makes it a potential connection component for battery equipment manufacturers, inverter suppliers, electrical panel builders, and industrial system integrators.
When choosing the correct terminal block, consider the electrical ratings, conductor termination requirements, available mounting space, and connection configuration.
For equipment requiring a double-threaded arrangement, the SL-200A-C provides an alternative configuration within the same product series.
FAQ
What is the rated current of the SL-200A-A square terminal block?
The SL-200A-A has a rated current of 200A and a rated voltage of 600V DC.
What is the difference between SL-200A-A and SL-200A-C?
The SL-200A-A uses a single-threaded connection structure, while the SL-200A-C features a double-threaded configuration. Both belong to the 200A square terminal block series.
Can the SL-200A-A be used in battery storage equipment?
Yes. It is intended for compatible battery storage and DC power distribution applications, provided the system's electrical and installation requirements are met.
Is the 200A square terminal block available in different colors?
Yes. The supplied product images show red and black housing options.
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