SAUTER · PROGRAMMABLE HVAC CONTROLLERS (DDC)

SAUTER

EY-AS525F001 modu525

Modular programmable BACnet building controller.

Technical Identification

  • Manufacturer: SAUTER
  • Model / family: EY-AS525F001 modu525
  • Equipment class: Modular programmable BACnet building controller
  • Application: HVAC automation and equipment control
  • Specifications: Refer to manufacturer documentation for exact hardware, firmware, I/O and power.

Engineering and Compatibility

Verify model suffix, regional regulatory approval, supported communications, application licensing, power supply, I/O combinations and commissioning software against the original technical manual. Specific installation design should be performed by a qualified controls integrator.

The presence of BACnet, Modbus or other protocol support at product-family level does not guarantee it is enabled on every ordering code or firmware revision.

Official Technical Source

Read the manufacturer’s source documentation →

AirAlign independent technical catalog. Source checked October 2026. Features not substantiated for this variant have been omitted.

modu525 — modular building-controller capacity

SAUTER EY-AS525F001 modu525 is cataloged as a modular BACnet controller. Module selection needs a full I/O schedule, supply and cabinet-power budget, supported expansion bus, the installed firmware and whether required BACnet services are supported. Compare it with the modu524 station by exact installed modules and network application rather than assuming one naming-step difference means pin compatibility. An automation controller does not replace separate protective limits.