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Siemens Digital DIN Rail Time Switch 230V AC Single Channel Programmable Timer 7LF4521-0
Specifications
| Country of Origin | Italy |
|---|---|
| Brand | Siemens |
| Height | 83mm |
| Model | 7LF4521-0 |
| Depth | 70mm |
| Contact Configuration | SPDT |
| Sub Type | Digital |
| Number Of Channels | 1 |
| Standards/Approvals | EAC, CE, RoHS, VDE |
| Maximum Supply Voltage | 230V ac |
| Units Measured | Days |
| Memory Spaces | 56 |
| Segment Length | 1s |
| 1 Channel Digital DIN Rail Time Switch Measures Minutes, 230 V acBrand | Siemens |
Key Features
- Operates with a single channel timer for efficient time-dependent control.
- Features 56 memory spaces for complex scheduling needs.
- Shortest switching interval is 1 second for enhanced control accuracy.
- Floating SPDT contact configuration supports versatile load switching.
- Compact design with 83mm height and 70mm depth for DIN rail mounting.
- IP20 protection rating ensures indoor use and long-term reliability.
- Automatic daylight saving adjustment guarantees accurate timing year-round.
- Supports 24-hour and weekly scheduling for flexible programming.
Product Description
Siemens 7LF4521-0 Digital DIN Rail Time Switch is a compact, industrial-grade programmable timer designed for precise control of electrical circuits on DIN rails. It supports a 230V AC supply and includes a single switching channel, making it ideal for managing lighting, heating, or other timed electrical devices in commercial, industrial, and residential environments.
The timer features 56 memory spaces allowing users to program multiple on-off cycles for enhanced operational flexibility. Its shortest switching time interval of 1 second facilitates accurate and responsive automation control. The floating SPDT contact configuration supports a wide variety of loads including resistive and inductive types with a maximum switching capacity of 16A at 250V AC.
Designed for indoor applications, this switch has an IP20 protection rating and is built with a compact form factor measuring 83mm in height and 70mm in depth. It also includes automatic daylight saving time adjustment to maintain precise scheduling without manual intervention. The product complies with international standards including EAC, CE, RoHS, and VDE, underpinning its reliable performance and safety.
This digital Time Switch is perfectly suited for automation tasks, commercial building lighting control, and HVAC system management. Its programmable schedules include both 24-hour and weekly options, providing great versatility for building and process automation systems.
Operates a single channel timer with 56 programmable memory spaces for advanced time control. Compact dimensions suitable for DIN rail mounting. Automatic daylight saving time adjustment ensures accuracy throughout the year.
Switches loads up to 16A at 250V AC, including resistive and inductive types. IP20 protection rating makes it suitable for indoor industrial and commercial installations. Complies with EAC, CE, RoHS, and VDE standards for safety and performance.
Ideal for use in industrial automation, commercial lighting, and HVAC control applications. Explore more Siemens automation and control gear products on EnvMart for your industrial and commercial solutions.
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Frequently Asked Questions
The maximum supply voltage for this model is 230V AC.
It features 56 memory spaces for programming multiple on-off cycles.
The shortest switching interval is 1 second, allowing for enhanced control accuracy.
It uses a floating SPDT contact configuration, which supports versatile load switching.
This unit has a height of 83mm and a depth of 70mm, making it suitable for DIN rail mounting.
It complies with EAC, CE, RoHS, and VDE standards for safety and performance.
It can control both resistive and inductive loads with a maximum switching capacity of 16A at 250V AC.
No, it has an IP20 protection rating, which makes it suitable only for indoor applications.
Yes, it includes automatic daylight saving time adjustment to maintain accurate scheduling year-round.
It is ideal for automation tasks, commercial building lighting control, and HVAC system management.
This model operates with a single channel timer.
It supports both 24-hour and weekly scheduling for flexible programming.
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