Carling Technologies
Marine electrical switches, circuit breakers, ELCIs, battery disconnects, and digital switching systems from a Littelfuse brand.
Carling Technologies is a Littelfuse brand and a leading manufacturer of marine switching and circuit-protection products. Its marine lineup includes Contura rocker switches, hydraulic-magnetic and thermal circuit breakers, equipment leakage circuit interrupters (ELCIs), battery disconnect switches, and digital power-management systems for recreational, commercial, and specialty vessels.
Products from Carling Technologies
192 products
Carling TechnologiesCarling E-Series 50A Triple pole UL 489 Circuit Breaker
Carling E-Series 50A triple pole hydraulic-magnetic circuit breaker for 120/240V AC applications. UL 489 listed and CSA certified; black handle and 1/4-20 stud terminals.
SKU CB-EA3-UL-AC-50A
$192.50
Carling TechnologiesCarling E-Series 60A Double pole UL 489 Circuit Breaker
Carling E-Series 60A double pole hydraulic-magnetic circuit breaker for 120/240V AC applications. UL 489 listed and CSA certified; black handle and 1/4-20 stud terminals.
SKU CB-EA2-UL-AC-60A
$160.70
Carling TechnologiesCarling E-Series 60A Triple pole UL 489 Circuit Breaker
Carling E-Series 60A triple pole hydraulic-magnetic circuit breaker for 120/240V AC applications. UL 489 listed and CSA certified; black handle and 1/4-20 stud terminals.
SKU CB-EA3-UL-AC-60A
$212.40
Carling TechnologiesCarling E-Series 70A Double pole UL 489 Circuit Breaker
Carling E-Series 70A double pole hydraulic-magnetic circuit breaker for 120/240V AC applications. UL 489 listed and CSA certified; black handle and 1/4-20 stud terminals.
SKU CB-EA2-UL-AC-70A
$160.70
Carling TechnologiesCarling E-Series 80A Double pole UL 489 Circuit Breaker
Carling E-Series 80A double pole hydraulic-magnetic circuit breaker for 120/240V AC applications. UL 489 listed and CSA certified; black handle and 1/4-20 stud terminals.
SKU CB-EA2-UL-AC-80A
$158.97
Carling TechnologiesCarling F-Series 100A Triple pole UL 489 Circuit Breaker
Carling F-Series 100A triple pole hydraulic-magnetic circuit breaker for 120/240V AC applications. UL 489 listed and cULus; black handle and 3/8-16 stud terminals. For this 120/240V three-pole configuration, the center pole is neutral.
SKU CB-FA3-UL-AC-100
$734.69
Carling TechnologiesCarling F-Series 125A Single pole UL 489 Circuit Breaker
Carling F-Series 125A single pole hydraulic-magnetic circuit breaker for 125V DC applications. UL 489 listed and cULus; black handle and 3/8-16 stud terminals.
SKU CB-FA1-UL-DC-125A
$439.81
Carling TechnologiesCarling F-Series 125A Triple pole UL 489 Circuit Breaker
Carling F-Series 125A triple pole hydraulic-magnetic circuit breaker for 120/240V AC applications. UL 489 listed and cULus; black handle and 3/8-16 stud terminals. For this 120/240V three-pole configuration, the center pole is neutral.
SKU CB-FA3-UL-AC-125
$734.69
Carling TechnologiesCarling F-Series 150A Double pole UL 489 Circuit Breaker
Carling F-Series 150A double pole hydraulic-magnetic circuit breaker for 125V DC applications. UL 489 listed and cULus; black handle and 3/8-16 stud terminals.
SKU CB-FA2-UL-DC-150A
$485.41
Carling TechnologiesCarling F-Series 150A Single pole UL 489 Circuit Breaker
Carling F-Series 150A single pole hydraulic-magnetic circuit breaker for 125V DC applications. UL 489 listed and cULus; black handle and 3/8-16 stud terminals.
SKU CB-FA1-UL-DC-150A
$272.44
Carling TechnologiesCarling F-Series 150A Triple pole UL 489 Circuit Breaker
Carling F-Series 150A triple pole hydraulic-magnetic circuit breaker for 120/240V AC applications. UL 489 listed and cULus; black handle and 3/8-16 stud terminals. For this 120/240V three-pole configuration, the center pole is neutral.
SKU CB-FA3-UL-AC-150
$734.69
Carling TechnologiesCarling F-Series 175A Single pole UL 489 Circuit Breaker
Carling F-Series 175A single pole hydraulic-magnetic circuit breaker for 125V DC applications. UL 489 listed and cULus; black handle and 3/8-16 stud terminals.
SKU CB-FA1-UL-DC-175A
$272.44
Carling TechnologiesCarling F-Series 250A Single pole UL 489 Circuit Breaker
Carling F-Series 250A single pole hydraulic-magnetic circuit breaker for 125V DC applications. UL 489 listed and cULus; black handle and 3/8-16 stud terminals.
SKU CB-FA1-UL-DC-250A
$272.44
Carling TechnologiesAA1-B0-34-615-6N1-C
Carling A-Series 15A single-pole hydraulic-magnetic supplementary protector with slant terminals. MPN AA1-B0-34-615-6N1-C. UL 1077 Recognized; CSA Accepted.
SKU CB-AA1-Y15AMP
$13.64
Carling TechnologiesAA2-B0-34-450-9D1-C
Carling A-Series 5A double-pole hydraulic-magnetic supplementary protector with slant terminals. MPN AA2-B0-34-450-9D1-C. UL 1077 Recognized; CSA Accepted.
SKU CB-AA2-05A-SP
$55.30
Carling TechnologiesAA2-B0-34-615-3B1-C
Carling A-Series 15A double-pole hydraulic-magnetic supplementary protector with straight terminals. MPN AA2-B0-34-615-3B1-C. UL 1077 Recognized; CSA Accepted.
SKU CB-AA2-W15AMP
$55.18AA2-B0-34-620-3B1-C
Carling A-Series 20A double-pole hydraulic-magnetic supplementary protector with straight terminals. MPN AA2-B0-34-620-3B1-C. UL 1077 Recognized; CSA Accepted.
SKU CB-AA2-W20AMP
$60.97
Carling TechnologiesAA2-B0-34-640-5D1-C
Carling A-Series 40A double-pole hydraulic-magnetic supplementary protector with straight terminals. MPN AA2-B0-34-640-5D1-C. UL 1077 Recognized; CSA Accepted.
SKU CB-AA2-40AMP
$55.30
Carling TechnologiesCarling A-Series AM2 10A Double-Pole Sealed Toggle Circuit Breaker
Carling A-Series AM2 10A double-pole hydraulic-magnetic supplementary protector with a sealed metal toggle.
SKU CB-AM2-10AMP - 501
$207.90
Carling TechnologiesCarling A-Series AM2 10A Double-Pole Sealed Toggle Circuit Breaker
Carling A-Series AM2 10A double-pole hydraulic-magnetic supplementary protector with a sealed metal toggle.
SKU CB-AM2-10AMP-34-501-I
$188.80
Carling TechnologiesCarling A-Series AM2 10A Double-Pole Sealed Toggle Circuit Breaker
Carling A-Series AM2 10A double-pole hydraulic-magnetic supplementary protector with a sealed metal toggle.
SKU CB-AM2-10AMP-56-501
$215.87$285.00
Carling TechnologiesCarling A-Series AM2 15A Double-Pole Sealed Toggle Circuit Breaker
Carling A-Series AM2 15A double-pole hydraulic-magnetic supplementary protector with a sealed metal toggle.
SKU CB-AM2-15AMP-34-501-I
$188.80
Carling TechnologiesCarling A-Series AM2 15A Double-Pole Sealed Toggle Circuit Breaker
Carling A-Series AM2 15A double-pole hydraulic-magnetic supplementary protector with a sealed metal toggle.
SKU CB-AM2-15AMP-36-501-I
$188.80
Carling TechnologiesCarling A-Series AM2 15A Double-Pole Sealed Toggle Circuit Breaker
Carling A-Series AM2 15A double-pole hydraulic-magnetic supplementary protector with a sealed metal toggle.
SKU CB-AM2-15AMP - 501
$207.90
Choose Carling switches and circuit protection
Match each component to the vessel's system voltage, circuit type, continuous and interrupt ratings, pole configuration, trip curve, actuator style, and environmental requirements. For replacement switches, also verify the cutout, terminal arrangement, lamp voltage, legend, and maintained or momentary action.
Ask about product compatibilityMarine controls built around the complete circuit
A switch or breaker must match both the electrical load and the installation. Review conductor protection, available fault current, leakage-protection requirements, panel fit, environmental exposure, and applicable marine standards before selecting a replacement or designing a new panel.
- Contura rocker switches in maintained and momentary circuit configurations
- Hydraulic-magnetic and thermal circuit breakers for AC and DC applications
- ELCIs for shore-power leakage protection at the vessel
- Battery disconnects and digital switching for onboard power control
Frequently asked questions
What does Carling Technologies make for boats?
Carling Technologies manufactures marine rocker switches, toggle and pushbutton controls, hydraulic-magnetic and thermal circuit breakers, equipment leakage circuit interrupters, battery disconnect switches, power distribution equipment, and digital switching systems.
How do I identify a replacement Carling rocker switch?
Check the complete part number and confirm the switch series, pole and throw configuration, maintained or momentary action, terminal arrangement, actuator and legend, lamp voltage, electrical ratings, and panel cutout. Similar-looking Contura switches can have different internal circuits.
What is the difference between a marine circuit breaker and an ELCI?
A circuit breaker protects conductors and equipment against overcurrent. An ELCI also monitors current imbalance between conductors and disconnects shore power when leakage exceeds its trip threshold. The required ratings and installation location must be verified for the vessel.
Is Carling Technologies part of Littelfuse?
Yes. Littelfuse completed its acquisition of Carling Technologies in 2021, and Carling Technologies is presented as a Littelfuse brand.
Need a quote on Carling Technologies gear?
Tell us what you're building. Our team will spec the right kit for your install and send a written quote.
Why buy from us
We carry this brand because it earns its place on the boat.
Stocked for marine builds
We focus on parts that meet the conditions boats see — not just whatever ships fastest.
Engineering review on request
Send a parts list or a layout and we'll check it against your boat before you order.
Direct from our team
Pricing, availability, and product questions all go through the same people who build custom harnesses and panels.