Siemens Motor Protection Circuit Breaker 20A, 25 A, 690V, Magnetic Sensing, 3 Poles, IP20, -20°C to 60°C 3RV2021-4DA10

Siemens 3RV2021-4DA10 Motor Protection Circuit Breaker is a high-performance motor protection device with a current rating adjustable between 20 and 25 amps and a supply voltage of 690 volts. It utilizes magnetic sensing technology to detect and interrupt fault conditions efficiently, protecting electric motors from damage caused by short circuits and overloads.

With a compact form factor measuring 97 mm in height, 45 mm in width, and 91 mm in depth, this MPCB is designed for seamless installation in control panels where space optimization is essential. It features a robust IP20 ingress protection rating, safeguarding internal components from solid foreign objects, suitable for industrial environments with moderate exposure to dust and contaminants.

Rated for three poles, the breaker offers comprehensive protection for three-phase motors, a common configuration in manufacturing and industrial applications. Its operational temperature range from -20°C to 60°C ensures reliable functionality under varying ambient conditions, making it suitable for use in diverse geographical locations including challenging outdoor and indoor setups.

Certified to meet stringent international standards such as ABS, ATEX, CCC, CE, CSA, EAC, LRS, RoHS, UKCA, UL, and VDE, this device signifies Siemens' commitment to quality and safety. The motor protection circuit breaker also carries the Better World claim for extended product life and low carbon manufacturing, reflecting sustainable engineering practices.

The breaker is capable of breaking short-circuit currents up to 100 kiloamperes, offering robust defense against power surges and fault currents that could otherwise harm connected equipment. Thanks to its mechanical durability of 100,000 operating cycles, it is designed for longevity and dependable maintenance-free service.

Installation is user-friendly with standard DIN rail compatibility and the ability to be mounted in any position for flexible wiring layouts. This makes it an excellent choice for integration into existing motor control and protection systems in industries such as manufacturing, automation, water treatment, HVAC, and electrical power distribution.

Equipped with magnetic sensing for precise circuit interruption. Compact dimensions for easy integration: 97mm height, 45mm width, 91mm depth. Rated for 3 poles ensuring robust three-phase motor protection. Wide operating temperature range from -20°C to 60°C for versatile environments.

IP20 rated enclosure for protection against solid objects. Mechanical durability rated for 100,000 operating cycles. Short-circuit breaking capacity up to 100kA for surge protection. Standard DIN rail mounting with flexible position installation.

Explore the Siemens range of motor protection devices at EnvMart for high-quality solutions suited to industrial, automation, and electrical applications, backed by trusted engineering and compliance.

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