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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RV2021-1JA20 |
| Alternative Part Number | 3RV20211JA20 |
| Manufacturer | Siemens |
| Current Rating | 10 A |
| Voltage Rating | 690 V ac |
| Mounting Type | Screw Mount; Snap-On Mount |
| Interrupting Capacity | 100 kA (AC); 10 kA (DC) |
| Terminal Type | Spring Loaded |
| Trip Type | Thermal-Magnetic |
| Actuator Type | Knob |
| Dimensions | 45 x 96.8 x 119 mm |
| Commodity Code | 853620 |
| Protection Class | IP20 |
| Connection Type | Spring-loaded terminals |
| Conductor Cross-Section | Solid or stranded 2x (1 ... 10 mm²), Finely stranded with/without core end processing 2x (1 ... 6 mm²) |
| Safety Related Data | B10 value: 5 000, Failure rate: 50 FIT |
| Display Version for Status | Handle |
| Required Spacing | For grounded/live parts at 690 V: downwards/upwards 50 mm, at the side 30 mm |
The Siemens 3RV2021-1JA20 is a robust motor protection circuit breaker designed to safeguard motors in industrial applications. This circuit breaker, size S0, is engineered for motor protection and is equipped with a thermal-magnetic release mechanism to ensure reliable operation. It has a current rating of 10 A and can handle voltages up to 690 V ac, making it suitable for a wide range of motor protection tasks.
The device features a spring-loaded connection system for secure and efficient installation, and it can be mounted using either screw or snap-on methods onto a standard 35 mm DIN rail, providing flexibility in setup. The circuit breaker's compact dimensions, 45 x 96.8 x 119 mm, allow for efficient use of space inside control cabinets.
With a high short-circuit breaking capacity of 100 kA at AC and 10 kA at DC, the 3RV2021-1JA20 ensures reliable protection against short-circuit conditions, while the adjustable trip settings enable precise protection for motors according to their specific requirements. The unit's knob control offers straightforward manual operation, and its design includes phase disturbance recognition for additional motor safety.
This circuit breaker is a critical component for industrial automation systems, offering dependable protection to extend the lifespan of motors and reduce downtime due to electrical faults. Its durable construction and compliance with international standards make it a trusted choice for motor circuit protection in a variety of industrial settings.
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Frequently Asked Questions
What is the rated operational voltage for this motor protection circuit breaker?
The rated operational voltage for this circuit breaker is 690 V ac.
Can this circuit breaker be mounted on a DIN rail?
Yes, it is designed for screw and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 60715.
What is the frequency of operation for this device at AC-3 according to IEC 60947-6-2?
The frequency of operation at AC-3 according to IEC 60947-6-2 is 1/h 15.
What are the dimensions of this circuit breaker?
The dimensions of the circuit breaker are 45 mm in width, 96.8 mm in depth, and 119 mm in height.
What type of protection does this circuit breaker offer?
This circuit breaker offers thermal-magnetic protection with overload and phase disturbance recognition.
Is there an adjustable response current for the overload release?
Yes, the current-dependent overload release is adjustable with a response current range of 7 to 10 A.
What is the breaking capacity limit for short-circuit current?
The breaking capacity limit for short-circuit current at 400 V is rated at 100 kA.
What is the protection class on the front of this device?
The protection class on the front of this device is IP20.
What is the ambient temperature range for operating this circuit breaker?
The ambient temperature range for operating this circuit breaker is from -20 °C to +60 °C.
What is the product brand name for this circuit breaker?
The product brand name for this circuit breaker is SIRIUS.
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