Circuit-Breakers Overview
The document provides comprehensive details on RMSI25 and RMSI63 circuit-breakers, designed for currents up to 63 A. These devices are used for switching and protecting motors or other loads and can be combined with contactors to form fuseless starter combinations. They are suitable for various climates and must be encapsulated in dusty or humid environments.

Specifications

• RMSI25: Rated for 0.1 to 25 A, suitable for motor and plant protection with adjustable overload releases and fixed short-circuit releases.
• RMSI63: Rated for 1 to 63 A, used in starter combinations for short-circuit protection.

Technical Data
The circuit-breakers comply with standards such as DIN VDE 0660 and IEC 60947. They have a mechanical life of up to 105 cycles and are designed for a maximum ambient temperature range of -20 to +55°C. The rated operational voltage is 690 V, with a surge voltage of 6 kV.

Additional Features and Accessories

• Auxiliary Contacts (RSI-C11): Provide additional control options.
• Short-Circuit Indicator Switch (RSI-S): Indicates short-circuit conditions.
• Undervoltage Release (RSI-U): Operates at various voltages, ensuring safety during voltage drops.
• Shunt Release (RSI-W): Allows remote tripping of the circuit-breaker.
• Remote Controlled Operating Mechanism (RSI-M): Enables remote operation of the RMSI25.

Accessories
Include insulated busbars and feed-in terminals for efficient connection and protection against accidental short-circuiting.

Technical Diagrams
The document includes connection diagrams and characteristic curves for both RMSI25 and RMSI63, illustrating their operational parameters and tripping characteristics under various conditions.

Key Considerations
Ensure proper encapsulation in adverse environments, adhere to technical specifications for optimal performance, and utilize additional features and accessories for enhanced functionality and safety.

Procedures and Mounting
The circuit-breakers are designed for standard mounting on a 35 mm DIN rail, compliant with EN 50022. Specific mounting positions are required due to the position of operating parts, as per DIN 43602. The document also specifies the necessary clearances and spacing for safe operation.

Product Range
Relpol S.A. offers a wide range of products including subminiature signal relays, miniature relays, industrial relays, interface relays, contactors, motor protection circuit breakers, time relays, monitoring relays, programmable relays, power supplies, solid state relays, overvoltage arresters, switches, and digital protection sets.

Contact Information
The document provides contact details for Relpol S.A.'s headquarters in Poland and various international offices, including those in Belarus, Bulgaria, Hungary, Lithuania, Russia, Ukraine, France, and England.