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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.
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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.
