How to Guide

WIRING DIAGRAMS
SPECIFICATION SHEET
EWZ103
MULTIPURPOSE CONTROL
1 CHANNEL
7 DAY TIME SWITCH
APPLICATIONS
• Outdoor signs.
• Lighting security.
• Heating and air conditioning.
FEATURES
SCHEDULING :
32 ON & OFF set points
for individual programs for each day of the week. Minimum setting is 1 minute.
SunSet ASTRONOMIC:
Adjusts daily to changes in sunset times. Adjustable 10 ° - 60 ° Northern or
Southern latitudes. Can be individually offset +/- 1-240 minutes from both
sunset and sunrise times.
DAYLIGHT SAVING :
Automatic (can be omitted).
LEAP YEAR :
Automatic Compensation.
MANUAL OVERRIDE :
Until the next regularly scheduled ON or OFF, automatic operation then resumes.
CLOCK FORMAT :
AM/PM.
POWER OUTAGE BACKUP :
Permanent schedule retention. Supercapacitor provides 4 days of real time backup.
SPECIFICATIONS
TIMING ACCURACY :
Line Frequency.
INPUT VOLTAGE :
120 - 277VAC, 50/60Hz (automatic detection).
TERMINAL RANGE :
#8 - #16AWG.
OPERATING TEMPERATURE :
-40 °F to 149 °F (-40 °C to 65 °C).
POWER CONSUMPTION :
6VA Max.
ENCLOSURE :
Polycarbonate Indoor/Outdoor NEMA 3R is standard with lockable hasp.
9730 Northcross Center Court
Huntersville, NC 28078
P: 800.321.5847
www.nsiindustries.com
CONTACT RATINGS
ORDERING INFO
3
SPST
4
LOAD
120/277V AC
EWZ101
1 2
NL N
TIMER
SUPPL Y
EWZ201
momentar y configuration
EWZ201 ONL Y: UNIT MUST BE
CONFIGURED FOR MOMENT ARY OPTION
CH 1
TIMER
SUPPL Y
3 5 6
120/277V AC
PULSE ON PULSE OFF
4
L N
1 2
CH 1 CH 2
SPST SPST
TIMER
SUPPL Y
120/277V AC
3 4
SPDT
EWZ120
1 2
L N
LOAD
N
TIMER
SUPPL Y
120/277V
L N N
1 2
EWZ103
TIMER
SUPPL Y
208 OR 240V
L1 L2
1 2
3
SPST
4
LOAD
120/277V AC
EWZ101
1 2
NL N
TIMER
SUPPL Y
EWZ201
momentar y configuration
EWZ201 ONL Y: UNIT MUST BE
CONFIGURED FOR MOMENT ARY OPTION
CH 1
TIMER
SUPPL Y
3 5 6
120/277V AC
PULSE ON PULSE OFF
4
L N
1 2
CH 1 CH 2
SPST SPST
TIMER
SUPPL Y
120/277V AC
3 4 5
SPDT
EWZ120
1 2
L N
LOAD LOAD
N N
DPST
TIMER
SUPPL Y
3 5
120/277V AC
4
LL N N
LOAD
LOAD
1 2
EWZ103
DPST
TIMER
SUPPL Y
3 5
208 OR 240V AC
4
L1 L2
1 2
3
SPST
4
LOAD
120/277V AC
EWZ101
1 2
NL N
TIMER
SUPPL Y
EWZ201
momentar y configuration
EWZ201 ONL Y: UNIT MUST BE
CONFIGURED FOR MOMENT ARY OPTION
CH 1
TIMER
SUPPL Y
3 5 6
120/277V AC
PULSE ON PULSE OFF
4
L N
1 2
CH 1 CH 2
SPST SPST
TIMER
SUPPL Y
120/277V
EWZ120
1 2
L N
3
SPST
4
LOAD
120/277V AC
EWZ101
1 2
NL N
TIMER
SUPPL Y
EWZ201
momentar y configuration
EWZ201 ONL Y: UNIT MUST BE
CONFIGURED FOR MOMENT ARY OPTION
CH 1
TIMER
SUPPL Y
3 5 6
120/277V AC
PULSE ON PULSE OFF
4
L N
1 2
CH 1 CH 2
SPST SPST
TIMER
SUPPL Y
120/277V AC
3 4 5
SPDT
EWZ120
1 2
L N
LOAD LOAD
N N
DPST
TIMER
SUPPL Y
3 5 6
120/277V AC
4
LL N N N
LOAD LOAD
LOAD
1 2
EWZ103
DPST
TIMER
SUPPL Y
3 5 6
208 OR 240V AC
4
L1 L2
1 2
CAT.
NO.
UPC
CODE
INPUT SUPPLY
(VAC) 50/60Hz
NO. OF
CHANNELS
OUTPUT
DRY CONTACTS
EWZ103
82473
120-277
1
DPST
TYPE
EWZ103
VOLTAGE
(VAC)
RATING
NO
General Purpose 120-277 30A
Inductive 120-277 30A
Ballast
120 30A
208-277 20A
Tungsten 120 15A
Pilot
Duty
120-277
720VA
Motor
208 1 1/2HP
240-277 2HP
Resistive 28VDC 30A
Electronic
Ballast
277VAC 15A