A special highlight: the OKTO 540 BN switches all light sources completely silently. This makes it perfect for hotels, bedrooms, patient rooms, theaters, or high-end residential projects where every clicking noise is disruptive. 

Thanks to its fully encapsulated electronics, the push-button switch is suitable for damp locations, maintenance-free, and durable. The pre-assembled connection cables enable quick, safe, and error-free installation – a clear advantage for electricians in their everyday work. 

Electrical sensor device module

Your advantages at a glance:

With the new OKTO 540 BN flush-mounted latching relay, Theben offers a premium solution for demanding installations.

Polypropylene film capacitor (radial lead)

OKTO 540 BN

  • ➜ The OKTO 540 BN (Item no. 5400030) is an electronic latching relay designed for efficient and flexible lighting control in residential and commercial installations. Ideal for controlling a single lighting circuit from multiple push-buttons, it enables convenient operation of one common consumer across different switching points, making it perfect for hallways, staircases, and larger spaces. With particularly quiet operation, this lighting control relay ensures minimal noise disruption while delivering smooth and reliable performance.
  • ➜ Engineered for durability and efficiency, the OKTO 540 BN features zero-crossing switching to reduce electrical stress and extend the lifespan of connected lamps. Its ultra-compact design allows for easy installation in tight spaces, while pre-assembled cables simplify setup and ensure secure connections. With a low standby consumption of just 0.2 W, this light control module offers an energy-efficient and practical solution for modern lighting systems.
Insulated crimp connector (butt splice)

Compensation Module LED

  • ➜ The Compensation Module LED (Item no. 9070825) is a dedicated LED dimmer module designed to eliminate afterglow and improve performance in modern lighting systems. Ideal for use with LED lamps in residential and commercial installations, this module works alongside dimmers to stabilise lighting behaviour and ensure clean, consistent light control. It is an essential solution for resolving common issues such as residual glow or flickering when LED lights are switched off.
  • ➜ Installed in parallel with the lighting load, the LED compensation module is quick to integrate into existing setups without complex rewiring. Its compact design allows for discreet installation while enhancing the reliability of any LED dimmer module system. Built for compatibility and long-term performance, this module helps extend the lifespan of LED lamps and ensures smooth operation, making it a practical addition to any professional lighting control setup.
Small Theben module with attached wiring

DIMAX 540 APP B

  • ➜ The DIMAX 540 APP B (Item no. 5400230) is a compact smart dimmer switch designed for modern smart lighting systems, offering flexible and reliable lighting control without the need for a neutral conductor. Suitable for both residential and commercial installations, it supports smooth dimming of LED and incandescent lamps while enabling full control via Bluetooth app connectivity on Android and iOS. Users can easily create light scenes, set schedules, and use astro functions for automated lighting based on sunrise and sunset, making it a practical solution for energy-efficient and intelligent light control.
  • ➜ With built-in Bluetooth mesh capability, the DIMAX 540 APP B lighting control module can be expanded and integrated with other devices to create a scalable smart light system. It features adjustable minimum brightness and a memory function that recalls the last light level for consistent performance. Designed for safety and durability, it includes temperature cut-off, overcurrent protection, and a short-circuit fuse, while its compact, fully encapsulated design makes it ideal for retrofitting into existing installations. With standby consumption of less than 0.5 W, this smart dimmer delivers efficient, future-ready lighting control.
  • ➜ Available August 2025.
Compact circuit control device for electrical panels

OKTO S12-230

  • ➜ Item no.: 3120120
  • ➜ The OKTO S 12 230 is a durable electromechanical latching relay with 1 normally open contact, designed for simple and cost-effective lighting control. It allows one common consumer to be operated from several push-buttons, requiring only 2 wires per switch for straightforward installation.
  • ➜ The relay features an integrated manual switch, SELV compatibility, and supports LED loads up to 200 W. With no closed-circuit current consumption, it offers energy efficiency alongside reliable performance.
Theben DIN rail mounted electrical relay module

OKTO ES12-UC

  • ➜ Item no.: 3120131
  • ➜ The OKTO ES 12 UC is a versatile electronic latching relay with 1 normally open contact and a potential-free multi-voltage input (8–230 V). It enables convenient lighting control of a single consumer from multiple push-buttons, offering flexibility across various installations.
  • ➜ With zero-cross switching, it supports high LED loads (up to 600 W) while ensuring lamp-friendly operation and extended service life. The unit also features automatic 3-/4-wire detection, SELV compatibility, and a high glow lamp load up to 100 mA.
Theben delay relay for industrial and building automation

ELPA 7

  • ➜ Item no.: 0070002
  • ➜ The ELPA 7 electronic staircase time switch ensures safe and reliable lighting with advanced features for modern installations. It prevents sudden darkness with a switch-off pre-warning, supports immediate secondary switching, and offers a toggle function for permanent light.
  • ➜ Built with zero-cross switching, it protects relays and handles high lamp loads with ease. Its automatic 3- or 4-conductor detection makes installation simple, while electronic overload protection ensures long-lasting performance.
Theben programmable timer and relay controller with network connectivity

TC 649 C

  • ➜ Item no.: 6490430
  • ➜ The TC 649 C is a powerful digital and astronomical time switch with both weekly and annual programs, designed for professional, networked control applications. Featuring an integrated web server, it allows remote operation via app and cloud, enabling time switching or astronomical programs to be sent to the device and direct switching to be performed online.
  • ➜ With 4 programmable channels and up to 800 memory programs, each channel can function as a time or astro switch. Advanced scheduling includes special programs, holiday settings, astro offsets, fixed ON/OFF switching via LAN, and pulse programs. Automatic summer/winter time changeover is supported for multiple regions worldwide.
Compact Theben automation device with manual control switch

OKTO S22-230

  • ➜ Item no.: 3120122
  • ➜ The OKTO S 22 230 is a robust electromechanical latching relay with 2 normally open contacts, designed for convenient and flexible lighting control. It enables operation of one common consumer from multiple push-buttons with just 2 wires per switch, ensuring simple and cost-effective installation.
  • ➜ This relay supports all-pole disconnection for electrical safety, includes an integrated manual switch, and is SELV-compatible for added protection. With LED switching loads up to 200 W and no closed-circuit current consumption, it combines safety, energy efficiency, and durability.
Theben DIN rail mounted modular automation device

OKTO ES12-230

  • ➜ Item no.: 3120130
  • ➜ The OKTO ES 12 230 is a reliable electronic latching relay with 1 normally open contact, designed for quiet and efficient lighting control. It allows convenient operation of a single consumer from multiple push-buttons, making it ideal for residential and commercial installations.
  • ➜ Engineered with zero-cross switching, it supports high LED loads (up to 600 W) while protecting lamps and extending service life. The unit automatically detects 3- or 4-wire pulse switching, offers a high glow lamp load of up to 100 mA, and consumes only 0.3 W on standby.
Smart digital time switch Theben TR 612 top2 for automation control

TR 612 top3

  • ➜ Item no.: 6120130
  • ➜ The TR 612 top3 is a professional digital time switch with weekly programming, designed for precise and reliable control of lighting and electrical systems. With 2 independent channels and 56 memory locations, it offers flexible scheduling for commercial and residential applications.
  • ➜ Programming is quick and secure via app, with data transfer handled through the optional Bluetooth OBELISK top3 dongle. This ensures maximum manipulation security, as switching programs can only be transferred when the dongle is connected. The device is also 100% compatible with top2 models, making upgrades seamless.
Theben OBELISK top3 Bluetooth stick for time switch programming

Bluetooth OBELISK top3

  • ➜ The Bluetooth OBELISK top3 (Item no. 9070130) is a compact Bluetooth programming adapter designed for fast and secure transfer of switching programs and commands to compatible time switches. Ideal for installers and smart building applications, this OBELISK Bluetooth dongle enables direct control and configuration via a mobile app, eliminating the need for complex manual programming. Using Bluetooth Low Energy technology, it ensures reliable communication with minimal power consumption, making it an efficient solution for modern time switch programming and control.
  • ➜ Designed to plug into the standard OBELISK interface, the adapter provides a secure connection that prevents unauthorised access, as data transfer is only possible when the device is physically connected. The built-in EEPROM memory allows it to store switching programs and function as a memory card for all top3 and top2 devices, supporting easy backup and system replication. Compact, efficient, and easy to use, the Bluetooth OBELISK top3 programming adapter offers a practical and flexible solution for wireless time switch configuration.
Theben SELEKTA 172 top3 digital time switch with LCD display

SELEKTA 172 top3

  • ➜ Item no.: 1720130
  • ➜ The SELEKTA 172 top3 is a precise astronomical time switch with a weekly program and 2 channels, designed for professional lighting and system control. Programming is simple via app, with secure transfer through the optional Bluetooth OBELISK top3 dongle, ensuring maximum protection against manipulation.
  • ➜ Fully compatible with top2 devices, it offers advanced functions including 3 special annual programs, custom twilight ranges with adjustable offsets, and an astro-pulse mode. Two external inputs provide additional flexibility for integration.
Theben DIMAX 540 plus B universal dimmer module

DIMAX 540 plus B

  • ➜ Item no.: 5400130
  • ➜ The Dimax 540 plus B is a reliable flush-mounted dimmer for R and C loads, optimized for LEDs and incandescent lamps. Designed without the need for a neutral conductor, it’s the perfect solution for retrofitting and modern lighting upgrades.
  • ➜ With its compact design and encapsulated electronics, it offers durability and easy installation. Built-in safety features include temperature cut-off, overcurrent protection, and a short-circuit fuse, ensuring dependable performance.
Theben DIMAX 545 plus P universal LED dimmer with Bluetooth

DIMAX 545 plus P

  • ➜ Item no.: 5450130
  • ➜ The Dimax 545 plus P is a powerful universal dimmer for R, L, and C loads with automatic load detection, making it ideal for LEDs, halogen, and incandescent lamps. Operated via push-button or Bluetooth Low Energy app, it offers easy setup and smart control from Android or iOS devices.
  • ➜ With features like adjustable minimum brightness, staircase lighting, astronomical functions, and sequential scenes, it provides maximum flexibility for modern lighting. The memory function recalls your last setting, while gentle on/off dimming preserves lamp life.
Surge switch for DIN rail

The electronic and electromechanical OKTO latching relay for series installation enable simple and convenient lighting control of a consumer via any number of push buttons. This makes them ideal for lighting control in hallways and corridors of apartment buildings, functional and commercial buildings, common rooms, and private living areas.

The highlights of the OKTO latching relay at a glance:

Quick installation:

DIN rail mounted and easy to install with only 2 wires per button.

Suits all requirements:

Electromechanical or electronic versions.

High LED switching capacity:

Electronic impulse relays with zero-crossing switching to protect the relay contact and prolong the service life of the LED lamp.

Quiet:

Operates without mechanical clicking (electronic impulse switches)

Efficient:

Electromechanical impulse relays with 0 W standby consumption. Electronic impulse switch with only 0.3 W standby consumption.

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