Landis+Gyr L440 LTE Control Switch

Description:

The L440 offers a modern alternative to ripple-control-based systems, using secure LTE connectivity to execute switching commands in real time. Built on LTE CAT M1 and NB1/NB2 communication, it enables energy providers to act with speed and precision without the need for costly infrastructure upgrades.  

Fully compatible with DLMS/COSEM protocols, it integrates into smart metering and head-end system environments, making it a strong fit for flexibility programs.
 

Each device features four independent 16A bi-stable relays, programmable through Time-of-Use calendars and supported by local automation logic. In the event of a network outage, the L440 continues operating autonomously based on predefined switching behavior triggered by TOU, voltage levels, astronomical clock and digital input. 

Key Benefits 

• The L440 brings fast, reliable load control to the edge of the network. LTE-based communication enables real-time response to grid conditions, while full integration with metering systems and GridFlex Control supports scalable flexibility. 
• Advanced scheduling via TOU tables and astronomical calendars automates switching across various applications, from residential heating, PV-control to street lighting. Designed for longevity, the L440 offers a 15+ year operating life, low total cost of ownership and full compliance with European security standards. 
• Built-in tamper detection, secure firmware lifecycle management and remote diagnostics ensure dependable operation throughout deployment. 

Part of the Flexibility Ecosystem 

The L440 is a key component of Landis+Gyr’s Flexibility Ecosystem, enabling real-time switching across distributed assets and coordinating with GridFlex Control for system-wide orchestration. Whether deployed independently or as part of a broader strategy, the L440 provides a future-ready solution for advanced load control.