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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RV2031-4SA15 |
| Alternative Part Number | 3RV20314SA15 |
| Manufacturer | Siemens |
| Mounting Type | Screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715 |
| Number of Poles | 3 |
| Adjustable Pickup Value Current | 9.5 to 14 A |
| Operating Voltage (Rated) | 690 V |
| Operating Frequency (Rated) | 50 to 60 Hz |
| Operating Current (Rated at AC-3) | 14 A |
| Operating Power at AC-3 (230 V) | 3,000 W |
| Operating Power at AC-3 (400 V) | 5,500 W |
| Short-Circuit Protection | Yes, with magnetic short-circuit trip |
| Installation/Mounting Dimensions | Height: 140 mm, Width: 55 mm, Depth: 149 mm |
| Required Spacing | Downwards: 50 mm, Upwards: 50 mm, At the side: 10 mm |
| Electrical Connection Type | Screw-type terminals for main current circuit and auxiliary/control circuit |
| Connectable Conductor Cross-Sections | Main contacts: 2x (1 to 25 mm²), 1x (1 to 35 mm²); Auxiliary contacts: 2x (0.5 to 2.5 mm²) |
| Tightening Torque | Main contacts: 3 to 4.5 N·m; Auxiliary contacts: 0.8 to 1.2 N·m |
| Mechanical Service Life | Main contacts: 50,000 cycles; Auxiliary contacts: 50,000 cycles |
| Electrical Endurance | 50,000 cycles |
| Protection Class IP | Front: IP20; Terminal: IP00 |
| Ambient Operating Temperature | -20 to +60 °C |
| Ambient Storage Temperature | -50 to +80 °C |
| Relative Humidity During Operation | 10 to 95% |
| Installation Altitude | Up to 2,000 m above sea level |
| Shock Resistance | According to IEC 60068-2-27: 25g / 11 ms Sinus |
| Safety Approvals | General Product Approval for use in hazardous locations, KC, Declaration of Conformity |
The Siemens 3RV2031-4SA15 is a robust and reliable motor protection circuit breaker designed to ensure the safe and efficient operation of electrical motors. This component is engineered to provide both short-circuit and overload protection, safeguarding motors in industrial applications from potential damage caused by electrical faults.
Featuring a compact design, the 3RV2031-4SA15 is suitable for space-constrained environments, allowing for efficient use of panel space without compromising on performance. With a three-pole configuration, it is capable of handling a range of operating currents, making it a versatile choice for various motor sizes.
The adjustable pick-up value current of the current-dependent overload release ensures precise protection tailored to the specific needs of the motor it serves. This flexibility in setting allows for optimised protection and contributes to the longevity of the motor.
Installation is straightforward, with options for both screw and snap-on mounting onto a standard 35 mm mounting rail according to DIN EN 60715. The device's height, width, and depth are designed to conform to industry standards, ensuring compatibility with a wide range of setups.
The 3RV2031-4SA15 is also characterised by its mechanical and electrical endurance, boasting a typical service life of 50,000 switching cycles for both main and auxiliary contacts. This durability translates into reduced maintenance requirements and a reliable performance over time.
With a protection class of IP20 on the front, the device offers a degree of protection against touch and foreign objects, contributing to the safety of the installation. Additionally, the circuit breaker is designed to operate effectively within a broad range of ambient temperatures, from as low as -20°C to as high as +60°C, making it suitable for challenging industrial environments.
Overall, the Siemens 3RV2031-4SA15 motor protection circuit breaker is a high-quality component that provides essential protection for electric motors, ensuring efficient operation and contributing to the overall safety and reliability of industrial electrical systems.
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Frequently Asked Questions
What type of protection does this circuit breaker offer?
The circuit breaker provides short circuit protection with a magnetic trip and overload protection with a thermal trip. It's designed to safeguard electrical circuits from damage caused by overcurrents or short circuits.
Can this circuit breaker be used in hazardous locations?
Yes, it has been approved for use in hazardous locations, making it suitable for a variety of industrial environments where safety is a priority.
What is the operating temperature range for this circuit breaker?
The operating temperature range for this circuit breaker is between -20°C to +60°C, ensuring reliable performance in a wide range of environmental conditions.
What are the installation requirements for this circuit breaker?
The circuit breaker can be mounted in any position and is designed for screw and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 60715.
What is the mechanical service life of the main contacts?
The main contacts of the circuit breaker have a typical mechanical service life of 50,000 switching cycles, indicating its durability and longevity.
What are the dimensions of this circuit breaker?
The dimensions of the circuit breaker are 140 mm in height, 55 mm in width, and 149 mm in depth, making it compact and suitable for various setups.
Is there a specific torque requirement for the terminals?
Yes, the main contacts with screw-type terminals require a tightening torque of 3 to 4.5 N·m, while the auxiliary contacts with screw-type terminals require a tightening torque of 0.8 to 1.2 N·m.
What is the trip class of this circuit breaker?
This circuit breaker has a trip class of CLASS 10, which refers to the time it takes for the breaker to trip in the event of an overload.
Can this circuit breaker be used with three-phase AC motors?
Yes, it is suitable for use with three-phase AC motors and has different horsepower ratings depending on the voltage level.
Does this circuit breaker have auxiliary contacts?
Yes, it comes equipped with one normally closed (NC) and one normally open (NO) auxiliary contact for additional control functions.
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