NATIONAL CONTROLS Z3T-00300-061, Z3 User Manual

Delay On Break (Retriggerable)

Timing

On
Off

On
Off

Input
V

oltage

Relay
Coil

Open

Closed

Delay On Break Function

Switch

Start

.187

SWITCH

SWITCH

START

START

.313

±.032

INC

CLEARANCE FOR #6 SCREW

.250 X .032 MALE 'FAST-ON'

(10 PL.)

R12

.775

(4 PL.)

3.625

.±032

N.0.

Z3T-*****-061

N.0.

COM

L1

COM

L2

VAC

VOLTAGE

INPUT

120

3.000

N.C.

R

1.500

N.C.

K1

2.125

±.032

.313

±.032

R

6360

+

-

TIME ADJUST

Polarity shown
for DC models

.27

1.875

Z3 Series

TIME DELAY RELAYS

1-23

FEATURES

100% functionally tested

●

No false contact transfer when reset

●

during timing
Digital timing circuit

●

Time delays to 5 minutes

●

●

±1% repeatability

●

Superior transient protection

●

Fast-on terminals for quick installation

●

Low cost, open board construction

●

Fiberglass reinforced circuit board

●

Trimpot on-board with sealed cermet
element

●

Operating Logic: Voltage is applied to the
timer at all times. Upon a closure of a nor
mally open isolated start switch, the output
relay is activated and remains so as long as
the switch is kept closed. When the start
switch is opened, timing starts. At the end
of the preset time delay, the output relay is
deactivated and the timer is ready for a new
cycle.

Note: 1) Do not apply voltage or ground to the start switch; 2)
Switch leads should be shielded when running close to other
wires; 3) If the start switch is re-closed during timing, the timer
will reset and will not start timing until start switch is opened (Start
switch supplied by customer).

LOGIC FUNCTION DIAGRAM

File #E59090

SPECIFICATIONS

TIME DELAY

Adjustment: Trimpot, factory fixed on spe-

cial order (min. order required)

Range: 3 to 300 sec.
Repeatability: ±1% at constant temperature
Accuracy:

Maximum time -0%, +10%
Minimum time +0%, -50%

Reset Time: 300 ms max.
Start Switch Closure Time: 20 ms to initiate tim

ing; 50 ms to reset delay during timing

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

-

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

ORDERING INFORMATION

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

TIME RANGE 120 VAC

3 to 300 sec. Z3T-00300-061