KHA
series
General Purpose
Dry Circuit to 5A
Multicontact
AC or DC Relay
File E22575
File LR15734
KHS
KHAU
Features
• 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.
• 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 @ 25
°
C
Voltage:
From 6 to 120VDC, and 6 to 240VAC, 50/60 Hz.
Nom. Power: 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. Power: DC coils
- 2.0 watts @ 25°C.
Duty Cycle:
Continuous.
Initial Breakdown Voltage:
500V rms, 60 Hz.
Coil Data
DC Coils
AC Coils
Nominal
Voltage
Contact Data @ 25
°
C
Arrangements:
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 Breakdown Voltage:
500V rms, 60 Hz., between open contacts.
1240V rms, 60 Hz., between all other
elements.
5
6
12
24
48
110 *
120 *
240
Resistance
in Ohms
±
10% @
25
0
C
32
40
160
650
2,600
11,000
—
—
Nominal
Inductance
in Henrys
.072
.08
.28
1.0
4.5
17.0
—
—
Resistance
in Ohms
±
15%
—
10.5
43
160
668
—
3,900
12,000
Nominal
AC Current
in mA
—
200
100
52
25
—
11.0
6.0
*Note: For 220 and 240VDC, use series dropping 5W resistor of 11,000Ω.
Contact Ratings
Contact
Code
1
2*
3
6
8
Resistive Rating
Material
Silver
Silver-cadmium
oxide
Gold-silver-nickel
Bifurcated cross bar,
gold overlay silver
Gold diffused silver
Minimum
100mA @
12VAC/12VDC
500mA @
12VAC/12VDC
10mA @
12VAC/12VDC
Dry circuit
50mA @
12VAC/12VDC
Maximum
3A @
120VAC/28VDC
5A @
120VAC/28VDC
2A @
120VAC/28VDC
1A @
120VAC/28VDC
3A @
120VAC/28VDC
Operate Data @ 25
°
C
Must-Operate Voltage: DC:
75% of nominal voltage.
AC:
85% of nominal voltage.
Operate Time:
13 milliseconds typical @ nominal voltage (excluding
bounce).
Release Time:
6 milliseconds typical @ nominal voltage (excluding
bounce).
Environmental Data
Temperature Range:
-45°C to +70°C operate.
-60°C to +130°C storage.
Note:
Relays should only carry a maximum of 15 amps continuously for all poles combined.
Mechanical Data
KHS Contact Ratings
Class I Division II Hazardous Location:
5A@28VDC/120VAC
UL 508 (Industrial Control):
3A@28VDC/120VAC; 1/10 HP @ 120VAC.
Mountings:
#3-48 stud, sockets with printed circuit or solder terminals,
or bracket plate with #6-32 threaded stud.
Termination:
Printed circuit or solder/socket terminals.
Printed circuit terminals are available for KHS on a special
order basis.
Enclosures:
See Ordering Information table.
Weight:
1.6 oz. approx. (45g).
Ordering Information
Typical Part No.
1. Basic Series: (See Note 1)
2. Type:
E = Printed circuit terminals, nylon dust cover, contacts rated opposite polarity (UL & CSA).
S = Solder terminals, hermetically sealed steel case (UL & CSA). Note: Do not ground
KHS frame without consulting factory for load levels. (Order as KHS, not KHAS.)
U = Solder terminals, clear polycarbonate dust cover, contacts rated same polarity
(UL & CSA).
3. Contact Arrangement:
11 = 2 Form C (DPDT)
17 = 4 Form C (4PDT)
4. Operating Coil:
A = AC
D = DC
5. Mounting and Termination:
1 = Socket mount, solder terminals on S, U types; printed circuit terminals on E types.
6. Contact Material:
Relay Type
Available Codes
E
1, 2, 3,
6, 8
S
1*, 2*,
3
U
1, 2,
6, 8
8 = Gold diffused silver.
B
KHA
U
-17
A
1
1
B
-24
*UL Rated 1/10 HP, 3A, 120VAC when used with mounting & termination 1.
1 = Silver.
2 = Silver-cadmium oxide.
7. Options Available:
Relay Type
E
S
None
U
N
B
H
L
M
3 = Gold-silver-nickel.
6 = Bifurcated crossbar, gold overlay silver.
Available Codes B (DPDT only)
B = Push to test button.
N = Neon indicator. Only available with 120VAC or 110VDC coils. Not available with mounting & termination 4 or 8.
H = Neon indicator and push to test button. Only available with 120VAC or DC coils. Not available with mounting & termination 4 or 8.
L = LED indicator. Only available with 6-48VDC coils.
M = LED indicator and push-to-test button. Only available with 6-48VDC coils.
8. Coil Voltage:
6, 12, 24, 48, 120, 240**VAC
6, 12, 24, 48, 110VDC
**240VAC coil is not available on KHS type relays.
Note 1:
Some KHA models available in KH construction. Specify KH instead of KHA.
Stock Items - The following items are normally maintained in stock for immediate delivery.
KHAE-17D12-24
KHAU-11A11-120
KHAU-11D11-24
KHAU-17A11-12
KHAU-17A11-24
KHAU-17A11-120
KHAU-17A11N-120
KHAU-17A12-120
KHAU-17A13-120
KHAU-17A16-24
KHAU-17A16-120
KHAU-17A18-120
KHAU-17D11-6
KHAU-17D11-12
KHAU-17D11-24
KHAU-17D11-48
KHAU-17D11-110
KHAU-17D12-12
KHAU-17D12-24
KHAU-17D12-48
KHAU-17D12-110
KHAU-17D16-12
KHAU-17D16-24
KHS-17A11-24
KHS-17A11-120
KHS-17A12-120
KHS-17D11-12
KHS-17D11-24
KHS-17D11-48
KHS-17D11-110
KHS-17D12-12
KHS-17D12-24
Outline Dimensions
Mounting Code 1 -
KHAU only.
2 & 4 Pole
.25
(6.4)
#3-48
THREAD
Mounting Code 1 -
KHS only.
.859 MAX.
(21.82)
.750
(19.05)
1 2 3
5 6 7
.022
(.56)
4
8
#3-48 THREAD
2 & 4 Pole
.250 + .015
(6.35
±
.38)
.022 REF
(.56)
.910 MAX.
(23.11)
.45 REF
.
(11.4)
9 10 11 12 1.109 MAX.
(28.17)
1.156 MAX.
(29.36)
.000 - .010
(.00 - .25)
1.281 MAX.
(32.54)
.168
(4.27)
.312
(7
.92)
.265
(6.73)
.525
(13.34)
.263
(6.68)
.421
(10.69)
1.281 MAX.
(32.54)
.312 + .031
(7
±
.79)
.92
Class 1 Div. 2 Group A, B, C & D Hazards
.281 REF
.
(7
.14) .525 REF
.
(13.34)
.263 REF
.
(6.68)
PC terminal models have rivet, not stud.
Max. seated height in 27E006 socket is
1.37" (34.8mm).
Mounting Code 1 -
Neon Indicator, Push-To-Test.
.797
±
.020
(20.24
±
.51)
.250
(6.35)
.040
±
.010
(1.02
±
.25)
.859 MAX.
(21.82)
.750
(19.05)
.168
±
020
(4.27
±
.51)
Printed Circuit
Terminals
.125 DIA.
(3.18)
.313
(7
.95)
.022
±
.015
(.56
±
.38)
#3-48 THREAD
.265
±
.046
(6.73
±
1.17)
.219
(5.56)
1.281 MAX.
(32.54)
1.600 MAX WITH
INDICATOR LAMP
(38.10)
9 10 11 12
.168
(4.27)
1.109 MAX.
(28.17)
1 2 3
5 6 7
4
8
.052 REF
.
(1.32)
.112
(2.84)
.050 DIA.
TYPICAL
(1.27)
.15
(3.81)
.047
REF
.
(1.19)
.312
±
.031
(7
±
.79)
.92
.263
(6.68)
.421
±
.046
(10.69
±
1.17)
.525
(13.34)
Printed circuit terminal thickness .022 (.558)
.200 (5.08) terminal length available on special order
.180 DIA. BOSSES
(4.57)
Wiring Diagrams (Bottom Views)
2 Pole
4 Pole
1
5
9
14
13
2
6
10
3
7
11
4
8
12
14
1
5
9
13
4
8
12
+
-
+
-
+ = Polarity for LED indicator.
PC Board Layout (Bottom View)
.160
(4.06)
.410
(10.41)
.660
(16.76)
14
PLACES
.070 DIA.
(1.78)
.175
(4.45)
.525
(13.34)
.350
(8.89)
For KHAE Relays
with PC terminals
and sockets with
PC terminals
Sockets For KHA And KHS Series
All sockets are normally maintained in stock for immediate delivery.
For KHAU, KHAX, KHS Relays.
Relays wilth solder terminals are required for use with sockets.
4-Pole Socket
.068
(1.73)
Socket Description
Industrial
Part No.
27E006*
27E007*
27E023*
27E220*
27E166**
27E894**
20C217
20C297
No. of
Poles
4
4
4
2
4
4
Terminal
and Length
Solder .375"
(9.53mm)
P.C. .218"
(5.54mm)
P.C. .218"
(5.54mm)
Screw
Screw
Grounding
Provision
Yes
Yes
No
Yes
No
Socket
Material
Nylon
Nylon
Nylon
Glass-filled
Polyester
Glass-filled
Polyester
.850
(21.59)
.183
(4.65)
1.150
(29.21)
.012
(0.30)
.310
(7
.87)
.440
(11.18)
1.07
(2.72)
Relay Hold Down Spring
Relay Hold Down Spring
(use with 27E166 &
27E894)
Recommended Chassis Cutouts
For Mounting Sockets
.858
(21.79)
Recommended Chassis Thickness
.031 (.79) to .062 (1.57)
* UL Recognized, file E22575
** UL Recognized, file E59244
Pierced Solder Terminals
Mounting Strip 37D633
.629
(15.98)
1.323
(33.60)
1.388
(35.26)
1.388
(35.26)
.090 R.
(2.29)
1.015
(25.78)
Socket punch Greenlee part
5015115.0, Type 731R available
from Greenlee Tool Co.,
Rockford, Illinois. (4-pole)
.125
±
.010
(3.18
±
0.25)
.25
(6.4)
.617
(15.67)
Printed Circuit Terminals
With Grounding Lug
.090
(2.29)
.105
(2.67)
.052
±
.010
(1.32
±
0.25)
GROUND
LUG
1.750
(44.45) 1.015
(25.78)
.171
(4.34)
.218
±
.016
(5.54
±
0.41)
.061
(1.55)
GROUND
LUG
.429
(10.90)
.858
(21.79)
.13
(3.3)
.16
.180
(4.1) (4.57)
.065 .32
(1.65) (8.1)
Without Grounding Lug
.171
(4.34)
.218
±
.016
(5.54
±
0.41)
.061
(1.55)
37D633 will mount eight solder terminal sockets
in one length of aluminum strip measuring 10.97" x 2.25" x .062
(278.6 x 57.15 x 1.57)
Screw Terminal Socket 27E166
Relays with solder terminals are required for use
with screw terminal sockets.
.94 .800 MAX.
(23.88) (20.32)
1.18
(30.0)
2.363 MAX.
(60.02)
Screw Terminal DIN Rail,
Snap-Mount Socket 27E894
(Use with mounting track 24A110)
1.181
(30.00)
.236
(5.99)
M3 SCREWS &
CAPTIVE WASHERS
.709
(18.01)
.47
(11.93)
.446 REF
.
(11.33)
.165
(4.19)
2.441
(62.00)
1.771
(44.98)
.140 TYP
.
(3.56)
Caution:
Printed circuit sockets are manufactured with
"floating" (Loose) terminals. This permits them to align
with holes in the circuit board and with the relay terminals.
During the mounting and soldering of the socket, vertical
float should be eliminated and the terminals seated on the
board. (This may be accomplished by inserting a dummy
relay in the socket.) Failure to eliminate float may cause
fracture of the solder joint or separation of the copper
conductor from the printed circuit board when a relay is
inserted in the socket after soldering.
.210 TYP
.
(5.33)
# 4-40 SCREWS &
CAPTIVE WASHERS
.600
(15.24)
1.22 MAX.
(30.99)
.118
(3.00)
1.024
(26.01)
.984
(24.99)
.728
(18.49)
Hold Down
Spring 20C217
27E166
Terminal
Location
8
4
7
3 2
6
1
5
27E894
Terminal
Location
8 7
43
6 5
21
14
13
14
G
13
12
12 11 10
9
11 10
9
Top View
Top View
Tyco Electronics Corporation - P&B, Winston-Salem, NC 27102
Technical Support Center: 1-800-522-6752, www.pandbrelays.com
Specifications and availability subject to change without notice.
13C5420
Printed in U.S.A.
IH/3-00
