WA 40 (M) Redundant + WA 40-S Redundant

Control board mounting annunciator system

Type designation: 

WA 40 / WA 40-S Redundant
fault indicating system for 40-200 messages, with redundant power supply
acknowledgeable new alert- flash warning
with 2 flashing frequencies
(ISA-18.1/DIN 19235),
with signal storage in case of power failure,
multifunctional parameterizable
via USB and NFC

Controls and displays

  • Bright 12,5 x 32mm RGB light field displays
  • Easily exchangeable label strips
  • Integrated mini horn and 4 RGB backlit function buttons (only WA 40 (M) Redundant)
  • Integrated web-page to display the luminous fields (in the color of the display), 
    the message texts and group messages, as well as acknowledgment of the messages
  • E-mail remote alarming (SMTP)


  • Integrated Mini USB and NFC interface for parameterization using Windows 7 Pro or higher
  • Acknowledgeable new alert/first alert flash warning, all sequences ISA-18.1-1979 (R2004) and DIN 19235
  • New alert / first alert, Quiescent / operating current – for each signal
  • Inputs freely assignable to outputs for each signal
  • Response delay variable for each signal from 50ms to 10min
    (in steps of 50ms, 2s and 1min)
  • History with ring memory for 8000 messages
  • Light field displays: selectable colors (red/green/yellow/blue or white)

Electrical characteristics

  • Electrically isolated redundant power supplies 
    (2x 110V / 125 V AC/DC or 2x 220V / 230V AC/DC)
  • 40 signal inputs, common ground (per 8-block) max. 230V AC / 240V DC with filter switching and electrical isolation
  • Resolution and switching precision ≥ 10ms
  • EMC-values: Higher immunity levels to UNITRO-PSC-Standard
  • Potential-free outputs: normally open relay max. 2A 250V AC, 0,3A 220V
  • States saved to memory on power failure

Mechanical characteristics

  • Plastic junction housing (288 x 144 x 120 + 25mm)
  • Connection: Screw-type terminals, plug connection max. 2.5mm²


  • Expandable to max. 200 signal inputs by max. 4 expansion modules WA 40-S Redundant
  • LON bus interface or Ethernet interface or (TCP/IP with IEC 61850 or IEC 60870-5-104 protocol currently not available)

Connection diagram WA 40 (M) Redundant

Technical data:

  • Type of construction:
    control board housing 288 x 144 x 120 + 25mm

    (cutting for installation 282 x 138 + 1mm)

  • Degree of protection:
    front: IP50

    housing: IP20

  • Weight:
    WA 40 (M) Redundant max. 2800g

  • Climatic conditions:
    in accordance with UNITRO-PSC-Standard

  • Connection:
    screw-type terminal/ plug-in connection max. 2.5mm²

  • Supply voltage:
    + redundant supply:
    2x 110V / 125V AC/DC or

    2x 220V / 230V AC/DC

  • Alarm signal nominal voltage:
    110/125V DC or

    220/240V DC
    voltage tolerance ±10%

  • Input level for signal inputs:
    at 110 / 125V DC 3mA

    at 240V DC 2mA

  • Data retention in the absence of power:
    20 years

subject to change