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Siemens SIRIUS 3RV2821-4BD10

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3RV2821-4BD10

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The Siemens 3RV2821-4BD10 is a transformer protection circuit breaker designed for reliable operation. This S0 size breaker can handle a rated current of 20 A and operates effectively at voltages up to 690 VAC.

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Technical specifications for 3RV2821-4BD10

ManufacturerSiemens
Product TypeTransformer Protection Circuit Breaker
Product LineSIRIUS
Part Number3RV2821-4BD10
Size of Circuit BreakerS0 Size
Number of Poles3 Poles
Rated Current20.0 A
Overload Release Current20 A
Short-Circuit Release Current325 A
Operating Voltage690 VAC
Minimum Frequency50 Hz
Maximum Frequency60 Hz
IP RatingIP20
Mounting StyleDIN Rail Mount
Connection TypeScrew terminals
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Designed for transformer protection, the Siemens 3RV2821-4BD10 functions as a circuit breaker with significant capabilities. It belongs to the SIRIUS series and is classified as an S0 size circuit breaker. This device is rated for a standard current of 20.0 A and can withstand operating voltages up to 690 VAC.

In its protective mechanisms, the overload release current function remains at 20 A, ensuring that any overcurrent conditions are managed effectively. For instances of short-circuit occurrences, the device can trip with a release current threshold of 325 A, protecting the connected equipment.

The 3RV2821-4BD10 operates across a frequency range of 50 Hz to 60 Hz, enabling it to serve various electrical systems with compatibility. Its IP20 rating signifies that it is suitable for indoor use, where it will be shielded from solid objects greater than 12 mm.

Installation is facilitated through a DIN rail mounting style, which makes integration into existing systems efficient. The breaker utilizes screw terminals for its connections, ensuring a secure and reliable setup. This circuit breaker is ideal for safeguarding transformers in a range of industrial environments, providing vital protection against overload and short-circuit conditions.