NATIONAL CONTROLS Q3F-00001-321, Q3F User Manual

Delay On Break (Retriggerable)

Timing

On
Off

On
Off

Input
V

oltage

Load

Open

Closed

Delay On Break Function

Switch

Start

76

.88

1.25

Rt

5 4

2.00 SQ.

L

C

C

L

321

START

(3667-4)

.25 X .032 MALE FAST-ON

TERMINALS (7 PL.)

.170

DIA.

SWITCH

LOAD

INPUT

VOLTAGE

Polarity Shown is

for DC Models

Q3F Series

TIME DELAY RELAYS

1-21

FEATURES

100% functionally tested

●

Solid state digital timing

●

Time delays to 10 hours standard

●

20:1 maximum to minimum timing ratio

●

Low cost

●

●

Compact size

●

Superior transient protection

●

Flame-retardant and solvent-resistant
polyester thermoplastic housing

●

Operating Logic: Input voltage is applied
to the timer at all times. Upon closure of a
normally open isolated start switch, the load
energizes and remains energized as long as
the switch is closed. When the start switch
opens, the timing cycle starts. At the end
of the preset time delay, the load de-ener
gizes and the timer is ready for a new timing
cycle. (Start switch supplied by customer.)

Note: 1) Do not apply voltage or ground to start switch; 2) remote
start switch leads should be shielded when running close to
other wires; 3) If the start switch is re-closed during timing, the
delay will reset and will not start timing until the start switch
is opened; 4) Remote potentiometer leads should be shielded
when running close to other wires; 5) The minimum time setting
on external resistor-adjustable time delay relays is obtained by
shorting together the external resistor terminals of the relay; 6)
The maximum time setting within tolerance limits is obtained by
using a 1 megohm resistor; 7) Timing values between the mini­mum and maximum limits are linear with resistance within 10%;

8) Recommend 1/4 W minimum resistor be used.

File #E65038

LOGIC FUNCTION DIAGRAM

SPECIFICATIONS

TIME DELAY

Adjustment: External resistor, factory fixed on

special order (min. order required)

Range: 50 ms to 10 hours in 9 ranges
Repeatability: ±.5% +8 ms max. (0.25% typical)

at constant temperature
Accuracy:

Maximum time ±2% at Rt = 1 megohm

-

Minimum time +0%-30% at Rt = 0 ohm

INPUT

Operating Voltage: 120, 240 VAC; 12 VDC; 24

VAC/DC ±10% (DC models have reverse polarity
protection. Unfiltered input voltage to them must
be full-wave rectified)

Frequency: 50/60 Hz

OUTPUT

Type: Solid state normally open
Rating: 1 A steady state
Life: 100,000,000 cycles

MECHANICAL

Termination: .25” x .032” male fast-on

terminals
Mounting: Surface mount with one #8

screw

ENVIRONMENTAL

Storage Temperature: -40°C to 85°C
Operating Temperature: -40°C to 65°C

PROTECTION

Transient Voltage: 30 joule metal oxide varistor,

see ratings below
Dielectric Breakdown: 3000 VAC, RMS, termi

nals to mounting

-

Isolation Resistance: 100 megohms min.

ORDERING INFORMATION

TIME RANGE 12 VDC +10% 24 VAC/DC +10% 120 VAC +10% 240 VAC +10%

.05 to 1 sec. Q3F-00001-326 Q3F-00001-327 Q3F-00001-321 —

.25 to 5 sec. Q3F-00005-326 — Q3F-00005-321 Q3F-00005-325

.5 to 10 sec. Q3F-00010-326 Q3F-00010-327 Q3F-00010-321 Q3F-00010-325

3 to 60 sec. Q3F-00060-326 Q3F-00060-327 — —

15 to 300 sec.

30 to 600 sec. — Q3F-00600-327 — —

180 to 3600 sec. Q3F-03600-326 Q3F-03600-327 Q3F-03600-321 Q3F-03600-325

Trigger time (start switch closure)

Reset time 200 ms 300 ms 200 ms 200 ms

Min. load 5 mA 5 mA 2 mA 2 mA

Max. leakage current 10 uA 10 uA 200 uA 300 uA

Voltage drop at 1 A 2.1 V max. 3.2 V max. 3.3 V max. 3.3 V max.

Power consumption 2.6 W 3.7 VA max. 4.3 VA max. 5.8 VA max.

Peak 1 cycle surge 4 A 4 A 20 A 20 A

Protection 8.8j. MOV 8.8j. MOV 30j. MOV 30j. MOV

Optional Potentiometer: Part Number ASY-0001M-450

AMETEK National Controls Corp. • 1725 Western Drive • West Chicago, Illinois 60185 • Tel: [phone] • 630-231-5900 • FAX: [phone] • www.nationalcontrols.com

.25 to 5 hrs. — Q3F-18000-327 Q3F-18000-321 —

.5 to 10 hrs. Q3F-36000-326 — Q3F-36000-321 Q3F-36000-325

— Q3F-00300-327 Q3F-00300-321 Q3F-00300-325

20 ms 20 ms 20 ms 20 ms

between terminals and case

External Resistance/Time Delay Relationship

1 megohm external resistance is required to obtain
the maximum time for all ranges. To determine the
actual resistance needed to obtain the required time
delay, use the following formula:

Trequired - Tminimum

Rt=

Tmaximum - Tminimum

Note: Due to component tolerances, the actual time
obtained will normally be within 5% of desired time.

Consult factory for any special requirements not
listed in catalog (minimum order requirement may
apply).

x 1,000,000 ohms