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Siemens SENTRON 3VA5140-4ED21-0AA0

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3VA5140-4ED21-0AA0

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The Siemens 3VA5140-4ED21-0AA0 is a molded-case circuit breaker equipped with two poles and designed in accordance with UL Frame standards. It operates effectively at an insulation voltage of 500 V and is rated for an operating voltage of 250 V DC or 415 V AC, making it suitable for a variety of applications.

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Technical specifications for 3VA5140-4ED21-0AA0

ManufacturerSiemens
Product TypeMolded-Case Circuit Breaker (UL Frame 125, 2-pole)
Product LineSENTRON
Part Number3VA5140-4ED21-0AA0
UPC804766778834
Number of Poles2 Poles
Insulation Voltage / Rated Value500 V
Operating VoltageDC / Rated Value: 250 V, AC / Rated Value: 415 V
Power Loss [W] / Maximum7.46 W
Mechanical Service Life / Typical20,000 Operating Cycles
Electrical Endurance / Operating CyclesAC-1 at 380/415 V: 8,000, AC-1 at 690 V: 4,000, at 480 V: 8,000, at 600 V: 4,000
Maximum Short-Circuit Current Breaking Capacity (Icu)240 V: 55 kA, 415 V: 36 kA
Short-Circuit Current Making Capacity (Icm)240 V: 121 kA, 415 V: 75.6 kA
Current Breaking Capacity240 V: 65 kA, 480 V: 25 kA, 600 Y/347 V: 14 kA
Adjustable Response Value Setting Current (Ir) / L-trip with I2t CharacteristicMinimum/Maximum: 40 A
Protection Class IP / FrontIP40
Arrangement of Electrical Connectors for Main Current CircuitWithout Connection
Type of Electrical Connection for Main Current CircuitWithout Connection
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The 3VA5140-4ED21-0AA0 from Siemens is a sophisticated molded-case circuit breaker adhering to UL Frame 125 standards, designed with two poles for effective circuit protection. Its insulation voltage rating is set at 500 V, allowing it to operate within a well-defined electrical range. For its operational voltages, the device manages up to 250 V DC and 415 V AC efficiently.

The circuit breaker demonstrates a low power loss of 7.46 watts, contributing to energy efficiency. It is constructed for longevity and is capable of enduring approximately 20,000 mechanical operating cycles in regular use. In terms of electrical endurance, it can sustain 8,000 cycles at voltages of 380 V and 415 V, while it is rated for 4,000 cycles at higher voltages of both 690 V and 600 V, highlighting its reliability during operational stress.

This circuit breaker also features impressive short-circuit capabilities, with a maximum breaking capacity of 55 kA at 240 V and 36 kA at 415 V, making it suitable for installations where fault currents can be substantial. The current making capacity is robust, rated at 121 kA at 240 V and 75.6 kA at 415 V, further emphasizing its capacity to handle inrush currents during operation.

Furthermore, the 3VA5140-4ED21-0AA0 circuit breaker can accommodate an adjustable response value for its L-trip function, with settings ranging from a minimum to maximum of 40 A. The unit is rated with a protection class of IP40 on the front, ensuring it is suited for general industrial environments. The electrical connectors are arranged without a connection for the main current circuit, indicating compatibility requirements in specific installations.