Technical Data
Emergency Power Failure ON Device WRE-9242/WRE-9242-G
PART No.
DESCRIPTION
WRE-9242
Power Failure ON
Device for WR61xx Relays
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WRE-9242-G
Power Failure ON
Device for Satellite
Panel Relays
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SPECIFICATION
The Emergency Power Failure ON
Device is used to switch ON two
emergency relays in the event of a
power failure.
Upon power failure, the device will
automatically switch ON two relays that
are powered by utility or generator feed.
This ensures that circuits will be energized
if normal power is lost.
The WRE-9242 switches WR-61xx
series HID Latching Relays in a
Douglas Lighting Control Panel.
The WRE-9242-G switches the top two
704L relays in a Douglas Satellite Panel.
The Emergency Power Failure ON
Device mounts inside the Class 2
section of the Lighting Control Panel
(WRE-9242) or the Satellite Panel
(WRE-9242-G).
CONNECTIONS for WRE-9242
Emergency
Power
Panel
Power: 24VAC 250mA
Class 2 Low Voltage device.
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Outputs
WRE-9242
Two outputs provided for Douglas WR61xx Series HID Latching Relays.
WRE-9242-G
Two outputs provided for Douglas 704L
Latching Relays in Satellite Panels.
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Relay Interface
Each of the unit's two relay outputs
sends a relay ON pulse when the input
24VAC power is interrupted.
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Environment
Indoors, stationary, non-vibrating, noncorrosive atmosphere and noncondensing humidity.
Ambient operating temperature:
+15° to +120°F (-10° to +50°C)
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The WRE-9242 mounts inside the relay panel
on DIN rail. It connects directly to the 2 relays
controlling the emergency lighting circuits and
to the transformer as shown in the schematic.
Emergency
Lighting
Loads
Inputs
Normal
Power Panel
Relay Panel
DIMENSIONS & MOUNTING
Transformer
24VAC
W
B
Blue
N
Relays
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N
Red
WRE-9242
Red A
B
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E
F
G
H
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Blue
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Utility
Power
Generator
or
AC Inverter
Satellite Panel
The WRE-9242 or WRE-9242-G
Interface is a sealed plastic package
with screw wire terminals built into it.
The unit mounts onto standard 35mm
DIN rail. A small 2" DIN rail piece is
included for mounting.
Locate the WRE-9242 in the relay
panel near the relays and transformer.
Locate the WRE-9242-G in the
Satellite Panel on the backpan in the
area above the horizontal voltage
barrier.
WR-9242-G
CONNECTIONS for WRE-9242-G
Satellite Panel
Relays
Red A
B
E
F
G
H
W
B
Net A
Net B
Net A
Net B
2
Com
1
Black
Yell ow
Black
Black
Yell ow
35mm
DIN Rail
- LonW orks FTT-10 S ignal
- D ata Signal is polarity insensitive
- Tw o pairs of t erminals provided
for con ven ien ce.
Service
Switch
Service
LED
WINK
LED
Photo Sensors
LonW orks Controls
- Con nect Doug las WPS-55 27 or
WPS- 5533 Phot o Se nsors.
- Use syst em soft wa re to set
set- points a nd desir ed
actio n for photo se nsors.
Please re fer to user manua l for
ope ration of these contro ls.
Reset
Switch
Press and hol d for 5 seconds to clear
all set tings and restore fact ory default s.
Locator B uzzer
To help loca te Satellite pan els
installed in plen ums, u se system
softwar e to make this buzze r bee p.
WSP-2718
Satellite Panel
Control Card
1
2
1"
3
4
5
6
8
2.5"
9
3
4
5
6
7
8
9
10
10
1
2
White
Blue
24VAC Blue Return
7
Power
24VAC
Transformer
N
Blue
Utility
Power
2
2
24VAC
WRE-9242-G
Relay 1
Relay 2
1
Photo Sensors
1
2
24 VD C Power &
24VDC Inputs
- Con nect 24 VDC Occupa ncy
de tectors to these term ni als.
- Dou glas WRM-51 04 det ector
can also be conn ected to
the se input s.
- See user m anual fo r
con nection diagr ams a nd
ho w to pro gram setting s
for occupa ncy dete ction.
Transformer
Red
Terminal
Block
24 VD C 24 VDC
Inputs Power
Source
1
Data
Signal
Normal
Power Panel
Blue
N
+24v Red
WRE-9242 or WRE-9242-G
The WRE-9242-G mounts inside the
Satellite Panel on DIN rail in the area
above the horizontal voltage barrier.
Relays 1 and 2 (top two relays) control
the emergency circuits. The WRE-9242G connects directly to the 4-position
terminal block near the relays and to the
transformer as shown in the schematic.
Emergency
Lighting
Loads
Emergency
Power
Panel
Terminal
Block
Generator
or
AC Inverter
www.DouglasLightingControls.com
Screw
Terminals
2.7"