Product Description
SB204M-C40 Miniature Circuit Breaker - 4P - C - 40 A
System pro M compact SB200M Miniature Circuit Breakers are current limiting. They have two different tripping mechanisms, the delayed thermal tripping mechanism for overload protection and the electromechanic tripping mechanism for short circuit protection. They are available in different characteristics (B,C,D), configurations (1P,1P+N,2P,3P,3P+N,4P), breaking capacities (up to 10 kA at 240/415 V AC) and rated currents (up to 63A). All MCBs of the product range SB200M comply with IS/IEC 60898-1, allowing the use for residential, commercial and industrial applications.
Advanced Protection for Demanding EnvironmentsThe ABB SB204M-C40 MCB is designed to safeguard electrical systems in both commercial and industrial sectors. Its Type C tripping curve swiftly disconnects circuits under overload or moderate short-circuit conditions. With a high breaking capacity and superior flame-retardant casing, it minimizes risk in demanding setups, while reliable operational performance is ensured across a wide temperature range.
Easy Installation and MonitoringFeaturing DIN rail mounting and a visible ON/OFF window, the SB204M-C40 streamlines both installation and maintenance. Its modular dimensions and compatibility with a range of wiring sizes up to 35mm2 make it adaptable to new or retrofit installations. The clear status indicator enables quick visual verification of breaker position.
FAQ's of ABB fOUR Pole MCB /SB204M-C40:
Q: How does the ABB SB204M-C40 MCB enhance safety in electrical installations?
A: The SB204M-C40 incorporates a high-grade flame retardant thermoplastic casing and offers a 10kA breaking capacity. This combination helps contain and interrupt high fault currents, reducing fire and electrical hazards in commercial and industrial environments.
Q: What is the process for installing this MCB on a DIN rail?
A: Installers can easily mount the SB204M-C40 on standard DIN rail systems by snapping the MCB onto the rail and connecting cables up to 35mm2 into the terminals. It is designed for quick integration without special tools, making it suitable for both new installations and upgrades.
Q: When should a Type C tripping characteristic be chosen for an MCB?
A: Type C MCBs are ideal for circuits with moderate inrush currents, such as those found with motors, transformers, or fluorescent lighting. They provide protection against short circuits and overloads in commercial and industrial settings where such loads are common.
Q: Where can I use the ABB SB204M-C40 MCB?
A: This MCB is suitable for use in a wide range of commercial and industrial applications across India, including distribution boards, panel boards, and other control systems requiring a four-pole, three-phase breaker rated up to 415V AC.
Q: What benefits does the ON/OFF window indication provide?
A: The ON/OFF window offers immediate, clear visibility of the breaker's operating status, facilitating efficient maintenance and quick identification of circuit conditions without direct electrical testing.
Q: What is the mechanical endurance of the SB204M-C40, and why is it important?
A: The breaker is designed for up to 20,000 mechanical operation cycles. High endurance ensures consistent performance and longevity, making it a reliable choice for systems requiring frequent switching or long-term durability.