KHA series
General Purpose
Dry Circuit to 5A
Multicontact
AC or DC Relay
File E22575
File LR15734
KHS
KHAU
Coil Data @ 25°C
Features
Voltage: From 6 to 120VDC, and 6 to 240VAC, 50/60 Hz.
Nom . Pow er: DC coils - 0.9 watt; 0.5 watt minimum operate @ 25°C.
AC coils - 1.2 VA; 0.55 VA minimum operate @ 25°C.
Max. Pow er: DC coils - 2.0 watts @ 25°C.
• Miniature size from 2 pole to 4 pole.
• KHAU is produced on an automated line, while KHU is produced
manually. Form, fit and function of the two versions are identical.
• KHS hermetically sealed version UL Approved for Class 1 Division 2
hazardous locations.
Duty Cycle: Continuous.
Initial Breakdow n Voltage: 500V rms, 60 Hz.
• Various applications include process control, photocopier, and data
processing.
• Push-to-test and inidcator options available.
• Various contact materials available for specific load requirements.
Coil Data
DC Coils
AC Coils
Resistance
in Ohm s
±10% @
250C
Nom inal
Inductance
in Henrys
Resistance
in Ohm s
±15%
Nom inal
AC Current
in m A
Nom inal
Voltage
Contact Data @ 25°C
5
6
12
24
48
110 *
120 *
240
32
40
160
.072
.08
.28
1.0
4.5
17.0
—
—
—
10.5
43
160
668
—
200
100
52
25
—
Arrangem ents: 2 Form C (DPDT), 4 Form C (4PDT).
Expected Life: 10 million operations, mechanical; 100,000 operations min.
at rated loads. Ratings are based on tests of relays with
ungrounded frames.
Initial Breakdow n Voltage: 500V rms, 60 Hz., between open contacts.
1240V rms, 60 Hz., between all other
650
2,600
11,000
—
—
3,900
12,000
11.0
6.0
elements.
—
*Note: For 220 and 240VDC, use series dropping 5W resistor of 11,000Ω.
Contact Ratings
Resistive Rating
Contact
Material
Code
Operate Data @ 25°C
Must-Operate Voltage: DC: 75% of nominal voltage.
AC: 85% of nominal voltage.
Minim um
Maxim um
1
2*
3
Silver
100mA @
3A @
Operate Tim e: 13 milliseconds typical @ nominal voltage (excluding
12VAC/12VDC
120VAC/28VDC
bounce).
Release Tim e: 6 milliseconds typical @ nominal voltage (excluding
Silver-cadmium
oxide
500mA @
5A @
bounce).
12VAC/12VDC
120VAC/28VDC
Gold-silver-nickel
10mA @
2A @
12VAC/12VDC
120VAC/28VDC
6
Bifurcated cross bar,
gold overlay silver
Dry circuit
1A @
120VAC/28VDC
Environm ental Data
Tem perature Range: -45°C to +70°C operate.
-60°C to +130°C storage.
8
Gold diffused silver
50mA @
3A @
12VAC/12VDC
120VAC/28VDC
Note: Relays should only carry a maximum of 15 amps continuously for all poles combined.
Mechanical Data
Mountings: #3-48 stud, sockets with printed circuit or solder terminals,
or bracket plate with #6-32 threaded stud.
Term ination: Printed circuit or solder/socket terminals.
Printed circuit terminals are available for KHS on a special
order basis.
KHS Contact Ratings
Class I Division II Hazardous Location:
5A@28VDC/120VAC
UL 508 (Industrial Control):
3A@28VDC/120VAC; 1/10 HP @ 120VAC.
Enclosures: See Ordering Information table.
Weight: 1.6 oz. approx. (45g).