Siemens 5ST2504 1-Pole Distribution Block 80A 1000V

The Siemens 5ST2504 is a high-performance 1-pole distribution block engineered for efficient electrical power management in industrial and commercial switchgear environments. Designed to facilitate organized and reliable current distribution, this compact component serves as an essential addition to residual current devices and miniature circuit breakers. With a robust construction and standardized design, it ensures secure cable connections and consistent electrical performance across various power distribution setups.

Advantages

This distribution block offers significant benefits for electrical installers by providing a universal mounting solution that integrates seamlessly with existing DIN rail systems. The unit is designed for ease of use, allowing for convenient installation and rapid connection of conductors. Safety is a primary feature, as the block includes standard touch protection to prevent accidental contact during maintenance or operation. Its compact footprint helps save valuable space within control cabinets, while the high-quality materials ensure long-term reliability and durability in demanding electrical applications.

Suitable for

• Industrial switchboard power distribution
• Commercial electrical panel installations
• Integration with miniature circuit breakers
• Connection setups for residual current devices
• DIN rail mounted power management systems

When it may not be suitable

This distribution block is not intended for use in environments exceeding its specified voltage or current ratings, as doing so may compromise safety and performance. It is also not suitable for applications requiring multi-pole distribution without the use of additional compatible components or busbar systems.

Key specifications

• Number of poles: 1
• Rated current: 80 A
• Rated voltage: 1000 V AC / 1500 V DC (IEC), 600 V AC/DC (UL)
• Input terminals: 3 x 2.5-25 mm²
• Output terminals: 4 x 2.5-6 mm²
• Mounting type: DIN rail
• Safety features: Integrated touch protection

How to use

The Siemens 5ST2504 is designed for quick and secure mounting onto standard DIN rails. Begin by ensuring the power supply is disconnected and the installation area is safe. Snap the block onto the rail and insert the incoming power cables into the designated input terminals, tightening the screws to the manufacturer's recommended torque. Connect the outgoing load cables to the output terminals, ensuring each connection is firm and secure. Verify that all wires are properly seated and that the touch protection covers are correctly positioned before restoring power to the system.

What to consider before purchase

• Verify that the current and voltage requirements of your circuit do not exceed the 80A and 1000V ratings.
• Ensure the wire gauge of your conductors falls within the specified input and output ranges.
• Confirm that your installation environment supports DIN rail mounting.
• Check if additional accessories or busbars are needed for your specific multi-phase configuration.

Usage recommendations

Always ensure that all electrical installations are performed by qualified personnel in accordance with local safety regulations and standards. Regularly inspect connections for tightness and signs of thermal stress to maintain optimal performance and safety over the lifespan of the equipment.