2CSR275053R1504 ABB DSE201 M C50 AC30 Residual Current Circuit Breaker

The ABB 2CSR275053R1504 DSE201 M C50 AC30-N Black Residual Current Circuit Breaker with Overcurrent Protection (RCBO) is a compact, single-module RCBO designed to protect single-phase circuits by combining residual current protection with overcurrent (overload and short-circuit) protection. Here’s a breakdown of its features and functionality:

Key Specifications

• Part Number: 2CSR275053R1504
• Model: DSE201 M C50 AC30 – N
• Type: RCBO (Residual Current Circuit Breaker with Overcurrent Protection)
• Poles: 1P+N (1 phase + neutral)
• Current Rating: 50 A
• Sensitivity: 30 mA, providing protection against direct contact by detecting low levels of earth fault currents
• Rated Voltage: 230 V AC (suitable for single-phase systems)
• Width: One-module design, saving space in distribution boards

Features and Benefits

1. Dual Protection (RCBO): Combines the functions of an RCD (Residual Current Device) and an MCB (Miniature Circuit Breaker) to protect against both earth faults (leakage currents) and overcurrent conditions (overload and short-circuit). This helps ensure comprehensive circuit protection in a single device.
2. Protection against Indirect and Direct Contact:
   • Indirect Contact Protection: Provides protection against electric shock in case of contact with live parts indirectly (e.g., via earth fault currents).
   • Direct Contact Protection: Offers additional protection against direct contact with live parts at a sensitivity of 30 mA.
3. Unswitched Neutral: The neutral conductor remains unswitched, ensuring continuous connection even when the RCBO trips, which helps stabilize the system and minimize interruptions.
4. Flying Leads:
   • Neutral Flying Lead: Available in either blue or black for easy identification and wiring.
   • Functional Earth Lead: White lead for connecting to the earth, necessary for proper functioning of the RCBO.
5. Compact One-Module Width: Designed to fit in minimal space, allowing for efficient use in distribution boards where space is limited.
6. High Sensitivity: With a 30 mA sensitivity, it provides effective protection for end users, detecting even small leakage currents, making it suitable for additional protection in areas with higher risk of electric shock (e.g., bathrooms and kitchens).
7. Applications: Ideal for residential and commercial single-phase circuit protection, especially in environments where user safety and equipment protection from electrical faults are crucial.

Applications

The ABB DSE201 M C50 RCBO is suitable for:

• Residential Buildings: Protects single-phase circuits in homes, offering high safety levels for end users.
• Commercial Installations: Used in commercial circuits where both overcurrent and earth fault protection are necessary.
• Sensitive Areas: Kitchens, bathrooms, or areas with higher risk of electric shock where 30 mA sensitivity provides additional protection.

This RCBO is designed for reliable circuit protection in a compact form, meeting high standards of safety, efficiency, and reliability in modern electrical installations.