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Check similar products or call us on +44 20 4570 3439 for assistance
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Specification & Description
The Siemens LZS:PT78740 is a robust plug-in socket designed to facilitate the secure and reliable connection of PT relays with 4 changeover contacts. This component is engineered to provide a screw terminal connection, ensuring a stable and durable link for your relay setup. With an IP20 protection class, it is suitable for general industrial applications where direct contact with the equipment is not an issue.
The socket is monostable, indicating that it will return to its original state upon the removal of power, which is ideal for applications requiring a stable and predictable response. The design of the switching function is a changeover switch, which allows for the control of two circuits with a common terminal. It is not positively driven, which means that the contacts operate independently, providing flexibility in various control and automation tasks.
The LZS:PT78740 is crafted with a standard snap-on socket base, allowing for quick and easy installation without the need for additional tools. It is compatible with a range of conductor cross-sections, both solid and finely stranded, with or without core end processing. The product is designed to accommodate conductor sizes from 1 to 2.5 mm², and it also accepts AWG cables from 18 to 14, providing versatility for different wiring requirements.
The socket's dimensions are compact, with a height of 74 mm, a width of 27 mm, and a depth of 41.5 mm, making it suitable for use in space-constrained environments. It can be mounted in any position, offering flexibility in installation. The ambient operating temperature range of -40 to +70 °C ensures that the socket can perform reliably in a variety of environmental conditions.
Overall, the Siemens LZS:PT78740 is a practical and efficient solution for those seeking a dependable and easy-to-install base for their PT relays in industrial settings.
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.
Read more...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.
Read more...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.
Read more...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.
Read more...How do I create an account?
Creating an account is incredibly simple and takes a matter of seconds. You can create a Marvo account at any time by clicking here and following the simple steps on screen. By creating a Marvo account you can store your contact details, delivery addresses, billing addresses and more, meaning that you can enjoy game-changing convenience faster than ever before.
Read more...Peace of mind with every purchase
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Our service to you
Lightning-Fast Express Shipping: Receive your order in record time with our express shipping options, ensuring you minimize downtime and keep your projects on track.
No-Risk Returns, Guaranteed: Return your parts anytime for a full refund. Our hassle-free return policy ensures you’re never stuck with something you don’t need.
Clear Pricing with No Hidden Fees: What you see is what you pay, transparent pricing with no extra costs, ever. Rest assured, all taxes and fees are already included in your final price.
Rock-Solid Reliability at a Fraction of the Cost: Get pre-owned electronic parts that are fully tested for peak performance, saving you money without compromising on quality, backed by a comprehensive warranty.
Frequently Asked Questions
What type of relay socket is this?
This is a plug-in socket designed for PT relays with 4 changeover contacts and screw terminal connections.
What is the protection class of this relay socket?
The relay socket has a protection class of IP20, making it suitable for use in environments where it is not exposed to water or dust.
Can this socket be used with different mounting positions?
Yes, the socket can be mounted in any position, offering flexibility in installation.
What is the switching behaviour of the relay socket?
The relay socket has a monostable switching behaviour.
Is the terminal block of the relay socket removable?
No, the terminal block of this relay socket is not removable.
What are the dimensions of the relay socket?
The relay socket measures 74 mm in height, 27 mm in width, and 41.5 mm in depth.
What types of conductors can be connected to the relay socket?
The relay socket can accommodate solid conductors ranging from 1 to 2.5 mm², finely stranded conductors with core end processing from 1 to 1.5 mm², and AWG cables solid from 18 to 14.
What is the tightening torque for the screw-type terminals?
The tightening torque for the screw-type terminals is between 0.5 and 0.7 N·m.
What are the ambient temperature limits for operating this relay socket?
The relay socket can operate within an ambient temperature range of -40 to +70 °C.
Does the relay socket have any auxiliary contacts?
No, the relay socket does not have any auxiliary contacts.
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.
