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Siemens 5ST3020

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5ST3020
5ST3020

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Marvo Stock ID MV-2G8Q
HS Code 85365080
SKU 5ST3020
Condition Used
Warranty 12 months
Weight (kg) 0.06
Length (mm) 70.00
Width (mm) 9.00
Height (mm) 90.00

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Specification & Description

Specification Description
Part Number 5ST3020
Alternative Part Number 5ST3020
Manufacturer Siemens
Product Type Fault Signal Contact
Suitable For 5SL Miniature Circuit Breaker
Number of NC Contacts 1
Number of NO Contacts 1
Number of Change-over Switches 0
Number of Pitch Units for Width 0.5
Mountable On RCBO and Miniature Circuit Breaker
Control Voltage Type AC/DC
Connectable Conductor Cross-section (min) 0.5 mm²
Connectable Conductor Cross-section (max) 2.5 mm²
Tightening Torque (max) 0.5 N·m
AWG Conductors 24 ... 12
Height 90 mm (varies by model)
Width 9 mm
Depth 70 mm
Net Weight Approx. 72 g to 85 g (varies by model)
Ambient Operating Temperature (min) -25 °C
Ambient Operating Temperature (max) 55 °C
Storage Temperature (min) -40 °C
Storage Temperature (max) 75 °C
Certifications General Product Approval, Declaration of Conformity, and others as applicable to the model
Commodity Code 85365080

The Siemens 5ST3020 is a meticulously engineered fault signal contact designed to enhance the functionality of 5SL miniature circuit breakers. This compact and reliable accessory is essential for monitoring circuit conditions and providing immediate fault indication, thereby facilitating swift and informed maintenance decisions. With its ability to be mounted onto RCBOs and miniature circuit breakers, the 5ST3020 is a versatile addition to any electrical safety system.

Crafted with precision, the 5ST3020 features one normally closed (NC) contact and one normally open (NO) contact, allowing it to adapt to various circuit configurations. The unit occupies a minimal space of just 0.5 pitch units in width, ensuring it integrates seamlessly into electrical distribution setups without demanding excessive room.

The fault signal contact operates effectively across a wide range of control voltages in both AC and DC applications, making it a flexible solution for diverse electrical systems. Its robust design adheres to industry standards, including IEC/EN60947-5-1 and IEC/EN62019, which underscores its reliability and quality.

Incorporating the Siemens 5ST3020 into your electrical infrastructure not only contributes to enhanced operational safety but also supports preventive maintenance strategies. Its ability to signal fault conditions promptly ensures that potential issues can be addressed before they escalate, thus minimising downtime and maintaining system efficiency.

The Siemens 5ST3020 is a testament to the brand's commitment to innovation, safety, and quality, making it an indispensable component for modern electrical safety management.

Commonly Asked Questions

Is my order covered by a warranty?

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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What payment methods do you accept?

We accept card payments from all major credit, debit and Mastercard providers including Visa, American Express, Western Union, Paypal and bank transfers. Before you complete an order you will be prompted to input your payment details, at which point you can enter the relevant card information you wish to use for your transaction. If you are experiencing issues with your payment method then you can contact our team via email here. From there, you will be directed to the most relevant resource or person to help you complete your payment, get your order processed and ensure that your parts are on the way to your delivery address.

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Is Marvo a credible parts supplier?

Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.

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Have steps been taken to ensure quality control?

Marvo takes pride in product quality and has put several measures in place to assure high levels of quality standards. For your peace of mind, all parts have been ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. Redefine convenience and secure priority delivery on all parts along with a comprehensive 12-month warranty. This is the smart new way to buy automation and control components.

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Frequently Asked Questions

What is the purpose of a fault signal contact?

A fault signal contact is used to provide a remote indication of a trip condition in a circuit breaker. When the associated circuit breaker trips due to a fault, the fault signal contact changes state, allowing for an external signal or alarm to be activated, indicating the need for attention.

Can the fault signal contact be mounted on any miniature circuit breaker?

The fault signal contact is designed to be mounted on specific types of miniature circuit breakers, such as the 5SL, 5SY, 5SP series, RCBO 5SU1, and RCD 5SV. It is important to check compatibility with the specific breaker model before installation.

What type of contacts does the fault signal contact have?

The fault signal contact comes with one normally closed (NC) contact and one normally open (NO) contact, providing flexibility for different signalling requirements.

How many pitch units in width does the fault signal contact occupy?

The fault signal contact occupies 0.5 pitch units in width, making it a compact addition to a circuit breaker without requiring much additional space.

Is there a specific voltage type for the control voltage of the fault signal contact?

The fault signal contact is designed to work with both AC and DC control voltages, providing versatility for use in various electrical systems.

What is the insulation voltage rating for this fault signal contact?

The insulation voltage rating for the fault signal contact is typically rated at 440 V.

What is the surge voltage resistance of the fault signal contact?

The surge voltage resistance of the fault signal contact is rated at 4 kV.

What is the typical electrical endurance of the fault signal contact?

The typical electrical endurance of the fault signal contact is around 12,000 to 20,000 switching cycles, depending on the specific model.

What is the protection class IP rating of the fault signal contact?

The fault signal contact has a protection class IP rating of IP20.

Can the fault signal contact be used with a handle coupler?

Yes, the fault signal contact can be used with a handle coupler, such as the 5ST3805-1, which may be required for certain applications.

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Part conditions explained

We want your buying experience to be as seamless as possible. So, here are all of the product descriptions you will see when browsing Marvo, explained a little further:

New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.

New sealed: The product is sealed in its original packaging. It has never been opened or used, ensuring that it's in an untouched state.

New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.

Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.

Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.

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