Specifications:
Terminal blocks are available in various sizes, including 1.5mm², 2.5mm², 4mm², 6mm², 10mm², 16mm², and 35mm². They are designed to meet UL, CSA, and IEC standards with varying voltage and current ratings. For example, the 1.5mm² block is rated at UL 600V/15A, CSA 600V/15A, and IEC 500V/17.5A.

Technical Parameters:
The terminal blocks have a rated impulse voltage of 6KV or 8KV and a pollution degree of 3. The stripping length for wires is generally 10mm, increasing to 18mm or 25mm for larger sizes.

Material and Color:
The blocks are designed for TS35x7.5 rails with specific dimensions for each size. They come with various accessories, including end plates, partitions, and connecting links.

Features of Spring Clamp Terminal Blocks:
- Space-saving design with front connection.
- Vibration-proof and anti-loosening wire connection using pre-stressed spring clamps.
- Easy and fast wiring installation with top wire entry.
- Corrosion-proof terminal points and low contact resistance.
- Easy mounting and dismounting from the terminal rail.
- Tool-free connection, saving time and ensuring safety with colored platens.

Accessories:
Each terminal block size comes with specific accessories such as end plates (SEW35), partitions (DD-PT series), and connecting links (DFBS series). Marking tags (DUC series) and tools (DS series) are also specified for each size.

Conclusion:
The document provides detailed specifications and features of push-in spring clamp terminal blocks, highlighting their technical parameters, ease of use, and safety features. The blocks are suitable for various industrial applications, offering reliable and efficient electrical connections.