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Specification & Description
The Siemens 3RK1304-5LS40-4AA0 is a robust and reliable direct-on-line (DOL) starter, designed to offer efficient control and protection for three-phase motors. This component is part of the SIRIUS ET 200pro motor starters range and is engineered to facilitate direct starting with a mechanical switching mechanism. It is equipped with electronic overload protection to safeguard motors against excessive current draw, ensuring a longer service life and consistent performance.
With a trip class of CLASS 10, the device is capable of handling motors with an operating power of up to 5.5 kW at 400 V in AC-3 usage categories. The starter operates within a control supply voltage range of 20.4 to 28.8 V DC, making it versatile for various industrial applications. The unit is designed for easy on-site operation and features an insulation voltage rated at 400 V, with a pollution degree of 3 and a surge voltage resistance rated at 6 kV.
The 3RK1304-5LS40-4AA0 is housed in a compact and durable enclosure with dimensions of 230 mm in height, 110 mm in width, and 150 mm in depth, allowing for convenient installation in tight spaces. It is also designed to withstand harsh industrial environments with an IP65 protection class, ensuring resistance to dust and water ingress.
For communication, the starter supports both PROFIBUS DP and PROFINET protocols, enabling seamless integration into automated systems. The device's construction ensures finger-safe protection against electrical shock, and it is designed for both vertical and horizontal mounting positions.
This DOL starter is an essential component for industrial automation systems requiring reliable motor control and protection. It is suitable for a wide range of applications, including conveyor systems, pumps, fans, and compressors in sectors such as manufacturing, processing, and infrastructure.
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Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.
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Frequently Asked Questions
What is the purpose of this direct starter?
The direct starter is designed for starting and stopping motors, providing electronic overload protection to prevent damage due to excessive current draw.
Can this starter be used for reversing motor direction?
No, this starter is not designed for reverse starting. It is intended for straightforward start-stop applications.
What is the operating voltage range for this device?
The operating voltage range for this starter is 200 to 400 V AC, making it suitable for a variety of industrial applications.
What type of motor protection does this starter offer?
This starter offers solid-state motor protection, which provides reliable and precise protection for motors under various operating conditions.
What is the trip class of this starter?
The starter has a trip class of CLASS 10, which indicates the time it takes for the device to respond to an overload condition.
Is this starter suitable for outdoor use?
The starter is rated with a protection class of IP65, making it dust-tight and protected against water jets, suitable for certain outdoor conditions.
What are the ambient temperature limits for operating this starter?
The starter can operate within an ambient temperature range of -25 to +55 degrees Celsius, ensuring performance in a wide range of environmental conditions.
Can this starter be integrated with communication protocols?
Yes, it supports both PROFIBUS DP and PROFINET protocols, allowing for easy integration into existing communication networks.
What is the rated operational current for this starter?
The rated operational current for the 3RK1304-5LS40-4AA0 is 1.5 to 12 A, accommodating a range of motor sizes.
How is the starter mounted in an installation?
The starter can be mounted vertically or horizontally and is secured using screw fixing, providing flexibility in installation.
