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Siemens
3RV1042-4LA10
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This part is currently sold out
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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RV1042-4LA10 |
| Alternative Part Number | 3RV10424LA10 |
| Manufacturer | Siemens |
| Product Type | Motor Protection Circuit Breaker |
| Poles | 3 |
| Rated Current | 90 A |
| Rated Operating Voltage | 690 V ac |
| Short-Circuit Breaking Capacity | 100 kA |
| Trip Characteristics | Thermal-Magnetic |
| Dimensions | 70 x 165 x 174 mm |
| Mounting Type | Screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022 |
| Operating Temperature Range | -20 ... +60 °C during operation |
| Storage Temperature Range | -50 ... +80 °C |
| Protection Class | IP20 on the front |
| Mechanical Service Life | 50,000 switching cycles for the main contacts |
| Surge Voltage Resistance | Rated value 6,000 V |
| Power Loss | Total typical 30 W |
| Installation Altitude | Maximum 2,000 m above sea level |
| Phase Failure Detection | Yes |
| Trip Class | CLASS 10 |
| Connection Type | Screw-type terminals with box terminals for main current circuit |
| Conductor Cross-Section | Solid: 2x (2.5 ... 16 mm²), Stranded: 2x (10 ... 50 mm²), 1x (10 ... 70 mm²) |
| Auxiliary Switch | Yes |
| Shock Resistance | 25g / 11 ms |
The Siemens 3RV1042-4LA10 is a robust motor protection circuit breaker designed to safeguard motors in industrial applications. This three-pole device is engineered to handle a rated current of 90 A and can operate at voltages up to 690 V ac. It boasts a substantial short-circuit breaking capacity of 100 kA, ensuring reliable protection in the event of fault conditions.
Crafted with precision, the 3RV1042-4LA10 features a thermal-magnetic trip mechanism that responds to both overload and short-circuit scenarios, providing a dual layer of security for your motor circuits. The compact dimensions of 70 x 165 x 174 mm make it suitable for installation in space-constrained environments, while the screw-type terminals with box terminals facilitate a secure and straightforward wiring process.
This circuit breaker is a part of the SIRIUS product family, known for its integration in a wide range of control and automation systems. The device is also characterised by a Class 10 trip class, which indicates a quick response to prevent motor damage due to current overloads.
With a mechanical service life of 50,000 switching cycles, the Siemens 3RV1042-4LA10 is built to last, ensuring long-term reliability and reduced maintenance needs. Its design allows for versatile mounting options, including screw and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 50022.
The 3RV1042-4LA10 is a discontinued product, and its preferred successor is the SIRIUS 3RV2 series. However, its enduring design and compatibility make it a valuable component for maintaining existing installations or for specific applications where its particular characteristics are required.
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Frequently Asked Questions
What type of protection does this circuit breaker offer?
The Siemens Motor Protection Circuit Breaker provides thermal-magnetic trip functionality, designed to protect motors from overloads, short circuits, and phase failures.
Can this circuit breaker be used in hazardous locations?
Yes, it has been approved for use in hazardous locations, ensuring compliance with relevant safety standards.
What is the maximum operating voltage for this device?
The maximum operating voltage for this circuit breaker is 690 V ac.
What is the short-circuit current breaking capacity of this circuit breaker?
This circuit breaker has a maximum short-circuit current breaking capacity of 100 kA at 240 V and 400 V, 10 kA at 500 V, and 6 kA at 690 V.
What are the dimensions of this circuit breaker?
The dimensions of the circuit breaker are 70 mm in width, 165 mm in height, and 174 mm in depth.
Is there a need for additional spacing when mounting this breaker side-by-side?
No additional spacing is required when mounting this breaker side-by-side, which allows for efficient use of space in electrical panels.
What type of terminals does this circuit breaker have for the main current circuit?
It features screw-type terminals with box terminals for the main current circuit, facilitating secure and reliable connections.
What is the continuous current rated value for this device?
The continuous current rated value for the 3RV1042-4LA10 is 90 A.
Can this circuit breaker be mounted on a standard DIN rail?
Yes, it can be mounted on a 35 mm standard mounting rail according to DIN EN 50022 with screw and snap-on mounting options.
What is the mechanical service life of the main contacts?
The main contacts of this circuit breaker have a typical mechanical service life of 50,000 switching cycles.
Does this circuit breaker have an auxiliary switch?
No, this model does not come with an auxiliary switch; however, it is designed to accommodate product extensions.
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