reichelt elektronik GmbH & Co. KG
Elektronikring 1
26452 Sande Germany

phone: +49 (0)4422 955-333
mail: info@reichelt.de
www.reichelt.de


HM RS485HSUS :: RS485 overvoltage protection, rail-mounted


HM RS485HSUS

  • Product Description
  • Technical information
  • General
    • Type
    • RS485 surge protection
    • Design
    • Connectible terminator, 5 VA output capacity
    • Colour
    • Grey
  • Implementation
    • Series
    • HomeMatic Wired
    • Mounting
    • DIN rail mounting (2 subunits)
    • power supply
    • 24 V DC
    • Protection class
    • IP20
  • Display
    • Display
    • 1 status LED
  • Interfaces
    • Interfaces
    • RS-485
    • Connection
    • Screw terminal
  • Electrical values
    • Power input (Standby)
    • 0.3 W
  • Measures
    • Width
    • 35 mm
    • Height
    • 87 mm
    • Depth
    • 64 mm

HomeMatic RS485 overvoltage protector, 2 sub-units

The overvoltage protection protects downstream RS485 components against high energy transient voltages, such as those arising from lightning strikes, electrostatic discharges, switching events.

As part of increasing home automation, appropriate overvoltage protection for the sensitive electronics should not be neglected. The overvoltage protector, which is specially aligned to the HomeMatic wired system, protects 24-V systems and the RS485 bus from damaging overvoltages.
The device used as a type-3 overvoltage protector (formerly "D-Feinschutz") in sub-distribution boards can protect other 24-V and RS485 systems as well as HomeMatic application. It is designed for rail-mounting. In addition to the transient protection function, the device also protects switched devices where there is a fault in the central 24-V mains power supply.

As well as the protection function, there is a switchable RS485 bus terminator, meaning that no additional bus terminating resistors are needed.



Manufacturer : HOMEMATIC
Factory number : HMW-SYS-OP-DR
Package weight : 0.126 kg
RoHS : conform
Technical information
  • General
    • Type
    • RS485 surge protection
    • Design
    • Connectible terminator, 5 VA output capacity
    • Colour
    • Grey
  • Implementation
    • Series
    • HomeMatic Wired
    • Mounting
    • DIN rail mounting (2 subunits)
    • power supply
    • 24 V DC
    • Protection class
    • IP20
  • Display
    • Display
    • 1 status LED
  • Interfaces
    • Interfaces
    • RS-485
    • Connection
    • Screw terminal
  • Electrical values
    • Power input (Standby)
    • 0.3 W
  • Measures
    • Width
    • 35 mm
    • Height
    • 87 mm
    • Depth
    • 64 mm
Datasheet/manual