Siemens LZS Coupling relay, DPDT, 2-pole, 24VDC coil Part number LZS:RT4D4L24

Product Overview

The Siemens LZS:RT4D4L24 is a compact plug-in relay unit from the SIRIUS LZS series. It features a 24 V DC coil, two change-over contacts (2 Form C / 2 CO), LED indication, and spring-loaded push-in terminals for efficient wiring and installation. Designed for socket mounting and compact control applications, the unit offers logical isolation and fast installation in industrial control panels.

Key Features

• Coil Voltage: 24 V DC
• Contact Configuration: 2 change-over contacts (2 Form C / 2 CO)
• Control Indicator: Red LED module for coil status
• Terminals: Spring-loaded push-in terminals for secure and fast wiring
• Isolation: Base with logical isolation between control and load
• Mounting: Socket-mounted / plug-in design for SIRIUS relay bases

Technical Specifications

• Product Series: SIRIUS LZS Plug-in Relays
• Article Number: LZS:RT4D4L24
• Contact Rating: 2 A max (per contact) at 24 V DC typical switching
• Coil Voltage: 24 V DC
• Operating Temperature Range: -40 °C to +70 °C
• Termination Type: Spring-loaded push-in terminals (no tools required)
• Mounting Style: Plug-in relay unit to socket base (SIRIUS system)
• Indicator: Red LED for coil status
• Protection Class: IP20 (mounted in control panel)

Compliance & Certifications

• Designed to meet Siemens SIRIUS relay quality standards
• RoHS-compliant (for restricted hazardous substances)
• CE-marked when installed as part of approved relay socket system

Applications

Ideal for general-purpose switching and signal isolation tasks in automation and control panels. Typical applications include PLC output interface switching, small-load control circuits, status signalling, and compact relay logic implementations in machine control, packaging, and building automation systems.