NATIONAL CONTROLS ASY-INPUT-BUFR User Manual

1-32

On
Off

Closed
Open

Control
Input

Output

50 mSec.
max.

50 mSec.
max.

.250 X .032 MALE
SPADE TERMINAL
(4 PLACES)

West Chicago, IL.

ASY-INPUT-BUFR

1 3

60185

Model No.:

5 4

OUTPUT

(TO START SW)

CONTROL INPUT

12-240 VAC/DC

INPUT BUFFER

TO NCC

TIMER-TRIGGER

INPUTS

V

INPUT VOLTAGE SOURCE

1.25

.885

2.00 SQ.

Corporation

National Controls

.170

DIA.

(Typical Wiring Diagram)

TIME DELAY RELAYS

Universal Voltage Input Buffer

ASY-INPUT-BUFR

FEATURES

Universal control voltage range: 12 to

●

240 VAC/DC
Controls all NCC timers requiring start

●

switch input
No need for isolated start switch con

●

tacts
Easy interface to programmable logic

●

controllers
Completely solid state, no moving parts

●

to wear out
Circuitry completely encapsulated

●

●

Low cost

●

Compact size

●

Superior transient protection

●

Flame-retardant and solvent-resistant
polyester thermoplastic housing

●

File #E164906

The universal input buffer will take any volt­age from 10.6 to 265 VAC/DC and actuate
any NCC timer requiring a start switch to
initiate a timing cycle.

Operating Logic: Upon application of input
voltage, the output becomes an effective
contact closure (within 50 ms). Upon remov
al of input voltage, the output becomes an
effective open circuit (within 50 ms).

-

SPECIFICATIONS

INPUT

AC: 10.6 to 265 VAC 50/60 Hz, 5 mA max.
DC: 10.6 to 265 VDC 5 mA max.
Input-Output Delay: 50 ms max.

OUTPUT

Effective contact closure for NCC timers:

Closure: VAC = 9 to 265, 50/60 Hz (6 mA max.)
Closure: VDC = 9 to 265, (6 mA max.)

Voltage drop across output: 2.2 VAC/VDC max.
at I=6 ma

Output leakage: At Vin= 0 VDC and Vout = 265
VDC, leakage is 25 uA DC max.

PROTECTION

Transient Voltage: 30 joule metal oxide varistor
Dielectric breakdown: 3000 Vrms terminal to

mounting; 1500 Vrms input to output
Insulation resistance: 100 megohms min.

between terminals and case

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
Humidity: 95% relative max.

-

LOGIC FUNCTION DIAGRAM

ORDERING INFORMATION

INPUT VOLTAGE RANGE PART NUMBER

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

12 to 240 VAC/DC ASY-INPUT-BUFR

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