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IK251-73 Datasheet, PDF (1/1 Pages) Carling Technologies – Toggle Switches
I-Series
Toggle Switches
The I-Series toggle switches are heavy-
duty, four pole switches with a slow-
make, slow-break contact mechanism.
These switches are available in a wide
range of terminations, circuits and
bushing/toggle configurations.
Specifications
•Certifications*: UL, CSA
•Dielectric Strength: 1,000V (minimum)
•Insulation Resistance: 100 Megohms
(minimum)
•Base Material: Phenolic
•Actuator Material: Brass/Nickel Plate
or Polycarbonate
•Bushing Material: Brass/Nickel Plate
* Due to ongoing technological advances, consult factory for
certification specifics.
Dimensional Specifications: in. [mm]
15/32-32UNS-2A
THREAD
.125[3.18] DIA
.075[1.91] DIA
.330[8.38]
.437[11.09]
.055[1.40] DIA
.394[10.00]
.687[17.44]
.465[11.81]
KEYWAY
.072[1.82]
X
.038[.965] DP
.803[20.40]
.422[10.72]
1.308[33.22]
I
K
SERIES
RATING
.187[4.74]
SOLDER LUG
.250[6.35]
.250 TAB (Q.C.)
TERMINAL TYPE
.187[4.74]
.187 TAB (Q.C.)
1.436[36.47]
#6-32NC-2
THREAD
.370[9.39]
.141[3.58]
.286[7.26]
SCREW
(ASSEMBLED)
.500[12.70] DIA
.062[1.57]
6.000[152.40]
.187[4.75]
.500[12.70]
.187[4.75]
.350[8.89]
WIRE LEAD
.500[12.70] DIA
PRINTED
CIRCUIT
.376[9.55]
MOUNTING HOLE
.038[9.65]
WITH KEYWAY
.500[12.70] DIA
.125[3.17] DIA
WITH LOCKING RING
25 1 -
73
TERMINATION/FUNCTION
I FOUR POLE
TOGGLE
CIRCUIT1
K ON-NONE-OFF
L ON-NONE-ON
M ON-OFF-ON
25 10A 250VAC
15A 125VAC
3/4HP 125-250VAC
1, 2 OR 3 PHASE
.250
SOLDER TAB
FUNCTION
LUG
(QC)
ON-NONE-OFF 0
1
(ON)-NONE-OFF A
B
ON-NONE-(OFF) L
M
ON-NONE-ON 0
1
ON-NONE-(ON) A
B
ON-OFF-ON
0
1
ON-OFF-(ON) A
B
(ON)-OFF-(ON) L
M
.187
TAB
(QC)
3
D
R
3
D
3
D
R
SCREW
TERM.
4
E
S
4
E
4
E
S
WIRE PC
LEAD TERM.
5
6
F
G
T
U
5
6
F
G
5
6
F
G
T
U
TOGGLE STYLE2
NOTES:
Shading indicates standard configurations.
For bushing accessories, see pages 69 and 70.
1 Consult factory for additional circuits.
2 NBL toggle uses black oxide plated metal bushing for standard construction. NWH toggle uses nickel plated
metal bushing for standard construction.
Momentary functions are available with only 63, 73 or 78 toggles.
TOGGLE BUSHING SUFFIX NEOPRENE
LENGTH LENGTH NO.
SEAL
BAT .406
.343
52
57
.562
.465
63
68
.687
.465
73
78
1.00
.343
A2
A7
1.25
.465
B3
B8
NYLON .687
.465
NBL3 NBL8
.687
.465
NWH3 NWH8
Carlingswitch,Inc. (860) 793-9281• Carlingswitch, LTD. Int + 44 1392-364422 • Carlingswitch Asia-Pacific, LTD. Int + 852-2737-2277 55