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Siemens 3RH2911-1HA31

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£25.57 (ex. VAT)

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Marvo Stock ID MV-1GJ8
HS Code 85365080
SKU 3RH2911-1HA31
Condition New sealed
Warranty 12 months
Weight (kg) 0.04
Length (mm) 43.70
Width (mm) 36.00
Height (mm) 37.50

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Specification & Description

Specification Description
Part Number 3RH2911-1HA31
Alternative Part Number 3RH29111HA31
Manufacturer Siemens
Part Description This is an auxiliary switch from the Siemens 3RH series. It features a snap-on mount design and has dimensions of 36 x 48.1 x 37.5 mm.
Short Description The switch is designed for front side mounting and has 3 Normally Open (NO) and 1 Normally Closed (NC) current

The Siemens 3RH2911-1HA31 is a high-quality auxiliary switch designed for optimal performance in various industrial applications. This front-side mounted switch features 3 Normally Open (NO) and 1 Normally Closed (NC) current paths, making it versatile for different circuit configurations. It's specifically designed for use with 3RH2 and 3RT2 contactor relays and power contactors.

The switch boasts an impressive mechanical service life of approximately 10 million switching cycles and an electrical endurance of 200,000 cycles at AC-15 at 230V. This ensures long-lasting durability and reliability in demanding environments.

With a protection class of IP20, it offers a degree of protection against touch by fingers and objects not greater than 12mm. The switch can operate efficiently in a wide range of ambient temperatures, from -25°C to +60°C during operation and -55°C to +80°C during storage.

The 3RH2911-1HA31 auxiliary switch is also equipped with screw-type terminals for auxiliary and control current circuits, accommodating a variety of conductor cross-sections. This makes installation and connection a breeze.

In terms of dimensions, the switch measures 36mm in width, 37.5mm in height, and 43.7mm in depth, making it compact enough for installation in tight spaces.

In summary, the Siemens 3RH2911-1HA31 auxiliary switch is a robust, reliable, and versatile component, designed to meet the rigorous demands of industrial applications.

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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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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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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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 description of this part?

This part is an Auxiliary Switch from the Siemens 3RH Series. It features a snap-on mount and has dimensions of 36 x 48.1 x 37.5 mm. It has a current path of 3 NO + 1 NC, which includes 1 NC, 1 NO, 1 NO, and 1 NO. It is designed for 3RH2 and 3RT2 with a screw terminal.

What are the technical specifications of this part?

The part operates at an ambient temperature of -25 to +60 degrees Celsius during operation and -55 to +80 degrees Celsius during storage. It has a mechanical service life of 10,000,000 operating cycles and an electrical endurance of 200,000 operating cycles at AC-15 at 230V. The part has an insulation voltage of 690V with a degree of pollution 3 and a surge voltage resistance of 6kV.

What is the protection class of this part?

The part has a protection class IP20 on the front.

What is the operational current of the auxiliary contacts?

The operational current of the auxiliary contacts at AC-12 is 10A at 24V and 230V. The maximum operational current is 10A.

What is the type of mounting for this part?

This part uses snap-on mounting.

What is the design of the electrical connection for this part?

The part uses screw-type terminals for the auxiliary and control current circuit.

What is the contact reliability of this part?

The contact reliability of the auxiliary contacts is 1 faulty switching per 100 million (17 V, 1 mA).

What is the suitability for use of this part?

This part is suitable for use with contactor relay and power contactor.

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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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