Carling Technologies, Inc.
60 Johnson Avenue, Plainville, CT 06062
Email: sales@carlingtech.com
Application Support: team2@carlingtech.com
Phone: 860.793.9281 Fax: 860.793.9231
www.carlingtech.com
H/I-Series
H/I-Series
TOGGLE SWITCHES
General purpose workhorses with options tailored to meet most any need. Ratings to 17A 125VAC, various
actuator, bushing, termination, and circuit choices allow this toggle to easily integrate into a variety of
different applications. The H/I-Series is appropriate for usage in low voltage DC applications.
Product Highlights:
Ratings up to 600VAC
Available reversing and progressive switch circuits
Variety of termination options
Consult factory for large choice of bushing/toggle
length combinations
Typical Applications:
Food Service
Generator
Industrial Control
Oce Automation
Email: sales@carlingtech.com Application Support: team2@carlingtech.com
Phone: (860) 793–9281 Fax: (860) 793–9231 www.carlingtech.com
2 |H/I-Series Toggle Switches - General Specications, Ordering Scheme, Dimensional Specications
*Manufacturer reserves the right to change product specification without prior notice.
Dielectric Strength
#6-32NC-2
THREAD
.250 TAB (Q.C.) SOLDER LUG
.187[4.74]
.187 TAB (Q.C.)
.141[3.58]
.370[9.39]
.286[7.26]
WITH KEYWAY
.376[9.55]
.250[6.35].187[4.74]
THREAD
KEYWAY
.072[1.82]
X
.038[.965] DP
KEYWAY
.072[1.82]
X
.038[.965] DP
3-POLE
.038[9.65]
.062[1.57]
.500[12.70] DIA
MOUNTING HOLE
15/32-32UNS-2A
.465[11.81]
1.088[27.64]
.803[20.40]
.687[17.44]
.422[10.72]
1.436[36.47]
.394[10.00]
.055[1.40] DIA
.422[10.72]
WIRE LEAD
WITH LOCKING RING
6.000[152.40]
.500[12.70]
TERMINAL TYPE
.437[11.09]
.330[8.38]
.125[3.18] DIA .075[1.91] DIA
.500[12.70] DIA
.500[12.70] DIA
.125[3.17] DIA
1.308[33.22]
NYLON
TOGGLE
IN
4-POLE BASE
SCREW
(ASSEMBLED)
1.308[33.22]
.465[11.81]
.687[17.44]
.803[20.40]
Electrical Life
Mechanical Life
Operating Temperature
UL/CSA: 1000V - live to dead
metal parts
50,000 cycles - maintained
25,000 cycles - momentary
100,000 cycles
32°F to 185°F (0° to 85°C)
1
Base Part Number
2
Actuator Style
HK251 73
2 ACTUATOR STYLE 1
unsealed sealed toggle length bushing length
BAT 73 78 0.687 0.465
E3 E8 2.000 0.465
PADDLE3 NBL3 NBL8 0.687 0.465
1 BASE PART NUMBER: SERIES / CIRCUITRY / RATING / TERMINATION 2
10A 250VAC, 15A 125VAC, 3/4 HP 125-250VAC, 1, 2 or 3 phase
Three Pole Four Pole
solder .250 tab screw wire solder .250 tab screw wire
lug tab term. leads lug tab term. leads
HK250 HK251 HK254 HK255 Off-None-On IK250 IK251 IK254 IK255
HK25A HK25B HK25E HK25F Off-None-(On) IK25A IK25B IK25E IK25F
HK25L HK25M HK25S HK25S On-None-(Off) IK25L IK25M IK25S IK25T
HL250 HL251 HL254 HL25E On-None-On IL250 IL251 IL254 IL255
HL25A HL25B HL25E HL25F On-None-(On) IL25A IL25B IL25E IL25F
HM250 HM251 HM254 HM255 On-Off-On IM250 IM251 IM254 IM255
HM25A HM25B HM25E HM25F On-Off-(On) IM25A IM25B IM25E IM25F
HM25L HM25M HM25S HM25T (On)-Off-(On) IM25L IM25M IM25S IM25T
Additional ratings up to 20A 125VAC, 12A 250VAC, 1HP 120-240 VAC
available. Consult factory for specics.
Notes:
1 Additional actuator options available. Consult factory for details.
2 Consult factory for .187 tab and combination screw/tab/solder lug termination callouts.
3 Nylon toggle with black ebanol plated bushing.
( ) Indicates momentary function.
Email: sales@carlingtech.com Application Support: team2@carlingtech.com
Phone: (860) 793–9281 Fax: (860) 793–9231 www.carlingtech.com
Email: sales@carlingtech.com Application Support: team2@carlingtech.com
Phone: (860) 793–9281 Fax: (860) 793–9231 www.carlingtech.com
| 3
Sales Representatives, Distributors & Company Prole
Authorized Sales Representatives and Distributors
About Carling
Founded in 1920, Carling Technologies is a leading manufacturer of electrical and electronic switches
and assemblies, circuit breakers, electronic controls, power distribution units, and multiplexed power
distribution systems. With four ISO registered manufacturing facilities and technical sales oces worldwide,
Carling Technologies Sales, Service and Engineering teams do much more than manufacture electrical
components, they engineer powerful solutions! To learn more about Carling please visit
www.carlingtech.com/company-prole.
To view all of Carling’s environmental, quality, health & safety certications please visit
www.carlingtech.com/environmental-certications
Click on a region of the map below to nd your local representatives and distributors or visit
www.carlingtech.com/ndarep.
EUROPE
MIDDLE
EAST
SOUTH
AMERICA
ASIA-PACIFIC
OCEANIA
AFRICA
MEXICO
USA
CANADA
Worldwide Headquarters
Carling Technologies, Inc.
60 Johnson Avenue, Plainville, CT 06062
Phone: 860.793.9281 Fax: 860.793.9231
Email: sales@carlingtech.com
Northern Region Sales Oce: nrsm@carlingtech.com
Southeast Region Sales Oce: sersm@carlingtech.com
Midwest Region Sales Oce: mrsm@carlingtech.com
West Region Sales Oce: wrsm@carlingtech.com
Latin America Sales Oce: larsm@carlingtech.com
Asia-Pacific Headquarters
Carling Technologies, Asia-Pacic Ltd.,
Suite 1607, 16/F Tower 2, The Gateway,
Harbour City, 25 Canton Road,
Tsimshatsui, Kowloon, Hong Kong
Phone: Int + 852-2737-2277 Fax: Int + 852-2736-9332
Email: sales@carlingtech.com.hk
Shenzhen, China: shenzhen@carlingtech.com
Shanghai, China: shanghai@carlingtech.com
Pune, India: india@carlingtech.com
Kaohsiung, Taiwan: taiwan@carlingtech.com
Yokohama, Japan: japan@carlingtech.com
Europe | Middle East | Africa Headquarters
Carling Technologies LTD
4 Airport Business Park, Exeter Airport,
Clyst Honiton, Exeter, Devon, EX5 2UL, UK
Phone: Int + 44 1392.364422 Fax: Int + 44 1392.364477
Email: ltd.sales@carlingtech.com
Germany: gmbh@carlingtech.com
France: sas@carlingtech.com
www.carlingtech.com REV_11_2016
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Carling Technologies:
HM254-73 HK250-73 HK251-73 HK254-73 HKA271-73 HKA274-73 HL250-73 HL251-73 HL254-73 HLA271-73
HM250-73 HM251-73 HM256-73 HM25M-73 HM25S-78 IK250-73 IK251-73 IK254-73 IK254-78 IL250-73
IL251-73 IL251-MB-73-XFR1 IL254-73 IL254-78 IM250-73 IM251-73 IM254-73 IM25B-73 IK25S-78 HM255-73
HM251-73XAL1 HMA274-73 IM251-78 HK250-78