NATIONAL CONTROLS Z4 User Manual
Interval
Timing
On
Off
On
Off
Input
V
oltage
Relay
Coil
Interval Function
INC
3.00
3.625
1.50
2.125
.141 Dia.
(4 Holes)
.313
Typ.
.27
1.875
Input
Voltage
(3021-1)
Time Adjust
.25 X .032 Male
Fast-on (16 Pl.)
C
NO
NO
C
NC
NC
Polarity is shown
for DC models
L1
L2
Z4 Series
TIME DELAY RELAYS
1-27
FEATURES
100% functionally tested
●
No false contact transfer when reset
●
during timing
Digital timing circuit
●
Time delays to 5 minutes
●
●
±1% repeatability
●
Fast-on terminals for quick installation
●
Low cost, open board construction
●
Fiberglass reinforced circuit board
●
Trimpot on-board with sealed cermet
element
●
Operating Logic: Upon application of volt
age to the input terminals, the relay coil is
activated and the timing cycle starts. At the
end of the preset time delay, the relay coil
is deactivated. Reset is accomplished by
removal of the input voltage.
LOGIC FUNCTION DIAGRAM
File #E59090
SPECIFICATIONS
TIME DELAY
Adjustment: Trimpot, factory fixed on spe-
cial order (min. order required)
Range: 3 to 300 sec. (other ranges avail-
able on special order)
Repeatability: ±1% at constant
temperature
Accuracy:
Maximum time -0%, +10%
Minimum time +0%, -50%
Reset Time: 400 ms max.
INPUT
Operating Voltage: 120 VAC ±10%
Power Consumption: 3 VA max.
Frequency: 50/60 Hz
-
OUTPUT
Type: Relay contacts, DPDT (2 form C)
Rating: 10 A max. resistive at 240 VAC; 100 mA
at 5 VDC min. load current
Life:
Mechanical: 10,000,000 operations
Full Load: 500,000 operations
PROTECTION
Transient Voltage: Timers are protected by a 30
joule metal oxide varistor
Dielectric Breakdown: 1500 VAC, RMS min. at
60 Hz between input and outputs and between
outputs
MECHANICAL
Termination: .25” x .032” male fast-on terminals
Mounting: .25” standoffs. #6 screw
ENVIRONMENTAL
Storage Temperature: -23°C to 70°C
Operating Temperature: -23°C to 55°C
ORDERING INFORMATION
AMETEK National Controls Corp. • 1725 Western Drive • West Chicago, Illinois 60185 • Tel: 800-323-2593 • 630-231-5900 • FAX: 630-231-1377 • www.nationalcontrols.com
TIME RANGE 120 VAC
3 to 300 sec. Z4T-00300-061
Consult factory for any special requirements not
listed in catalog (minimum order requirement may
apply).
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