NATIONAL CONTROLS 4QT, Q4T User Manual
Interval (Relay Output)
Timing
On
Off
On
Off
Input
V
oltage
Relay
Coil
Interval Function
2.00 SQ.
.170 DIA.
N.C.
N.O.
C
TIME DELAY
ADJUSTMENT ACCESS
ISOLATED
OUTPUT CONTACT
S
C
L
C
L
(3667-3)
INPUT
VOLTAGE
.885
1.25
CL
.25 X .032 MALE FAST-ON
TERMINALS (5 PL.)
Polarity Shown is
for DC Models
-
+
Q4T Series
TIME DELAY RELAYS
1-25
FEATURES
100% functionally tested
●
Solid state digital timing
●
Time delays to 10 hours standard
●
20:1 maximum to minimum timing ratio
●
Sealed S.P.D.T output contacts
●
●
Compact size
●
Superior transient protection
●
Epoxy encapsulated
●
Flame-retardant and solvent-resistant
polyester thermoplastic housing
●
Trimpot on-board with sealed cermet
element
●
Operating Logic: Upon application of volt
age to the input terminals, the relay is ener
gized, the contacts transfer and the timing
cycle starts. At the end of the preset time
delay, the relay coil is de-energized and the
contacts return to their original state. Reset
is accomplished by removing voltage from
the input terminals.
LOGIC FUNCTION DIAGRAM
File #E65038
SPECIFICATIONS
TIME DELAY
Adjustment: On-board Trimpot
Range: 50 ms to 10 hours in 8 ranges
Repeatability: ±0.5% max. (0.25% typical) at
constant temperature
Accuracy:
Maximum time +10%, -0%
Minimum time -30%, +0%
Reset Time: .25 sec. max., by removal of the
input voltage
INPUT
Operating Voltage: 120 VAC ±10%
Power Consumption: 3.5 VA max.
Frequency: 50/60 Hz
OUTPUT
Type: Relay contacts, SPDT (1 form C)
-
Rating: 8 A max. resistive at 250 VAC and 30
VDC; 100 mA at 5 VDC min. load current
-
Life:
Mechanical: 10,000,000 cycles;
Electrical: 100,000 min. at full load
PROTECTION
Transient Voltage: 1000 P.I.V. components used
Isolation Resistance: 100 megohms min.
between terminals and case
Dielectric Breakdown: 3000 VAC, RMS, ter
minals to mounting; 1500 VAC, RMS, input to
output
MECHANICAL
Termination: .25” x .032” male fast-on terminals
Mounting: Surface mount with one #8 screw
ENVIRONMENTAL
Storage Temperature: -40°C to 70°C
Operating Temperature: -40°C to 70°C
Humidity: 95% relative
-
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 +10%
.05 to 1 sec. Q4T-00001-341
.25 to 5 sec. Q4T-00005-341
.5 to 10 sec. Q4T-00010-341
3 to 60 sec. Q4T-00060-341
15 to 300 sec. Q4T-00300-341
30 to 600 sec. Q4T-00600-341
18 to 3600 sec. Q4T-03600-341
.5 to 10 hrs. Q4T-36000-341
Consult factory for any special requirements not
listed in catalog (minimum order requirement may
apply).
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