FAQ's

In order to offer maximum flexibility in providing customized solutions and a wide range of innovative design options, Carling Technologies does not carry stock, but instead chooses to manufacture "to order". Carling does, however, offer a worldwide network of qualified authorized distributors to meet your one-time or on-going supply requirements.

You can also check distributor stock directly using our distributor stock check tool. Enter the first few characters of the Carling part number to find which distributors have stock in that item or a similar item.

Carling Technologies' does not provide consumer replacement parts. Due to the wide variety of product options offered, Carling manufactures all parts "to order" and does not carry finished goods inventory. We recommend you work with the equipment manufacturer or one of our qualified authorized distributors to obtain replacement parts.

Carling Technologies' lead time on most product lines is 4 weeks at receipt of order. This combined with a 98% on time delivery, focuses on providing you & your customers with the critical responsiveness today's market demands. Lead times for Digital Switching and ELCI products, as well as customized constructions can be longer.

Direct business-to-business accounts can be set up with Carling Technologies. Each request for direct account status is reviewed by Carling Sales and Accounting personnel. To begin the direct account set up process, contact your local Carling Technologies Sales Representative. For small quantities or consumer use, contact one of our qualified authorized distributors.

Yes, all Carling Technologies' facilities world wide are ISO9001:2015 and IATF16949:2016 certified. 

Littelfuse warrants that the products will conform with all pertinent specifications including performance specifications, drawings and approved samples, if furnished in writing, and will be free from defects caused by defective materials or workmanship for a period of one-year after shipment thereof to buyer.
(b) littelfuse makes no other warranties, express or implied, to buyer, its customers or any users of the products except as herein stated, and littelfuse expressly disclaims and excludes all warranties whether statutory, express or implied, including all warranties which, but for this provision, might arise from course of dealing, custom or trade and including, but not limited to, the implied warranties of merchantability of the products, fitness for any particular use or purpose and non-infringement. All claims for alleged defects in the products shall be deemed waived unless made in writing and delivered to littelfuse within one (1) year after shipment of the products to buyer. Littelfuse’s sole liability with respect to the products shall be limited to the repair, replacement or refund of the purchase price of any defective products. Littelfuse, in its discretion, shall determine on a case by case basis whether repair, replacement or refund will be the remedy respecting any such defective products. If the applicable warranty period described has not expired, such repair, replacement or refund shall be littelfuse’s sole liability and the sole remedy that buyer, its customers or any users of the products shall have against littelfuse with respect to the quality, performance or use of any of the products. If the warranty period has expired, littelfuse shall not be liable for any damages of any kind whatsoever. Buyer hereby agrees to communicate in writing the terms of this section to its customers.
(c) all product information furnished by littelfuse is believed to be accurate and reliable. However, buyers must independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, lifesaving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable littelfuse product documentation. Warranties granted by littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by littelfuse as set forth in applicable littelfuse documentation.

Click here to download Littelfuse' Terms & Conditions

We are committed to responsibly conducting our manufacturing operations in a manner that minimizes our environmental impact, while protecting our employees and communities. We have committed to reduce our Scope 1 and Scope 2 Greenhouse Gas Emissions 38% by 2035, based on our 2019 emissions—in line with keeping global temperatures well below 2° above preindustrial temperatures.

Click here to view Littelfuse' Environmental Policy.

With the exception of certain customized customer specific products, Carling Technologies, Inc, to the best of our knowledge, manufactures product compliant to RoHS and will continue to be compliant with the European Union Directive, Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment (RoHS) 2002/95/EC. The products we produce do not contain any substances of very high concern in concentrations greater than 0.1% (w/w), per the current REACH requirements. We will continue to monitor the RoHS & REACH regulations to make sure we remain compliant. 

Please click here for the RoHS statement.

Yes. You can find 3D files for certain switch series under the "Resources" section within that series Product Page.

The "X" indicates there is some type of special construction that falls outside of Carling's standard catalog offerings. Contact us directly to obtain the specific details and description of the switch.

We receive many inquiries referencing "Carling part numbers" which actually are not.

Often the four-digit internal manufacturing code that is stamped on the base of our switches gets confused for a Carling part number. It is not. In general, the only identifying stamping on a Carling switch is this four-digit internal manufacturing code, and rating values and agency logos for those switches that are agency approved.

For some switch series, we will also stamp a product series code, and occasionally we will stamp our end customer's part number on the base of the switch. That number may be helpful for identification, if we know the manufacturer of the piece of equipment in which the switch is found.

If you have a part number that you believe is valid, you can use the Part Number Search in our on-line CONFIGURIT.

Yes, you can contact us directly. However, you can help us to help you by first answering some key questions:

• What is the type, shape, and color of the actuator?
• Is there any imprinting on the actuator?
• Is the switch illuminated? What are the illumination/lens colors?
• What is the full rating stamped on the side of the switch?
• What is the type and number of terminals?
• Does it have Maintained or Momentary action?
• What is the mounting style: snap-in, screw mount, or threaded bezel?
• Who is the manufacturer of the equipment from which the switch came?
• Attaching one or more detailed, focused photos of the switch top, bottom, and sides can also be of tremendous help in identifying the switch

If you are unsure of the terminology above, we encourage you to visit the "Learn More" links found in our Learn More section.

You should always contact the equipment manufacturer first for the proper replacement.

If you are unable to obtain a switch or a part number via the manufacturer, then you can contact us directly for help in identifying the switch part number, (please see the FAQ above regarding how to identify a switch part number). We can then refer you to an authorized stocking distributor for purchase of that part number.

DC rule of thumb for AC ratings are as follows: 125 VAC rating is good up to 12 VDC and 250 VAC rating is good up to 24 VDC.

Yes. Carling Technologies offers high amp power switches up to 100 amps. These switches provide low cost, heavy duty capability with or without an auxiliary switch. For more detailed information on these switches, visit the Hydraulic Magnetic Circuit Breakers section on our web site and look for the "switch only" option under our various circuit protection series. 

Carling Technologies is a highly vertically integrated company. This, in combination with complete in-house design, allows us maximum manufacturing flexibility. As a result, we offer a wide range of value added options and customized solutions for your specialized switch or circuit protection needs.

Contact us, and tell us of your specific needs and application, and a Carling Technologies' representative will deliver a cost-effective solution.

The electrical lives of our switch bulbs are as follows:

• Neon 25,000 hours typical
• Incandescent 25,000+ hours typical
• LED 100,000 hours

Heavy Vehicle

• ON-ON (front work light/rear work light, front/rear control)
• OFF - ON Circuit 1 - ON Circuit 2 (headlight, wiper motor)
• ON-ON-ON (fan switch, turn signal, wiper with "park" function)
• ON-OFF (lights, accessory)
• (Mom ON) - OFF (horn, engage electronic function, defrost-timing function)
• ON-OFF-ON (selector switch heat/ac, two wheel drive/four wheel drive)
• (Mom ON)-OFF-(Mom ON) (cruise control)
• OFF-ON-(Mom ON) (wiper with washer function)

Marine

• ON-OFF (lights, blower, accessories, fan)
• (Mom ON)-OFF (horn)
• ON-OFF-ON (navigation/anchor lights)
• (Mom ON) - OFF - (Mom ON) (trim tabs - always double pole)
• ON-ON or ON-OFF-(Mom ON) (bilge pump, 3-way lighting)

The current draw on our LED's is 20 milliamps.

The current draw for incandescent lamps is dependent on the volltage used:

• Voltage Current draw
• 3V 350 milliamps
• 6V 200 milliamps
• 12V 80 milliamps
• 24V 40 milliamps
• 48V 20 milliamps

For more information on our varioius illumination options, see the "Learn More: Illumination" page in our switch section, or visit our Product Selector.

The temperature range for our rocker and pushbutton switches is 0 C - 85 C (32 F - 185 F). The temperature ranges for our toggle switches are -17.8 C to 65.6 C (0 F - 150 F), or 0 C to 85 C (32 F to 185 F) depending on series.

A UL489 listed circuit protector can act as the final overcurrent device dedicated to protecting the branch circuit and outlets. It does not require an additional "back up" overcurrent device wired in series to protect a circuit. 

UL1077 recognized circuit breakers act as supplementary circuit protectors. They require a listed overcurrent device as a back up.

The mechanical life of our hydraulic-magnetic circuit breakers is tested to 10,000 operations @ 6 per minute with rated current and voltage.

Our ignition protection offerings (UL1500) are ideal of applications which require protection against explosive environments (generators and marine vessels are two such applications). This provides the reliability of a hydraulic-magnetic circuit breakers within a regulated sensitive area. Many amperages and delay curves are available. Vist our A-Series, B-Series, or C-series product pages.

You must be a Carling Technologies' Sales Representative or Carling authorized distributor in order to be granted a User Name and Password. If you are not a Carling Technologies' Sales Representative or authorized distributor, you can use the "Guest Log On" button to configure a Carling Catalog Number.

Please use the Contact us: Web Site Comments Form found on our web site to request a User Name and Password. Your request will be reviewed, and a User Name and Password will be emailed to you upon approval.

Please use the Contact us: Web Site Comments Form found on our web site to request your User Name and Password. Your request will be reviewed, and we will email to you your User Name and Password.

When using Configurit's Part Number Search feature, you must enter a complete and accurate Carling catalog number, including all dashes and slashes in their correct positions. Make sure that zero's are zero's, and letter O's are letter O's.

You will also receive this message if you enter a valid Carling catalog number that contains an "X". The "X" indicates there is some type of special switch or circuit breaker construction that falls outside of Carling's standard catalog offerings, and therefore outside of Configurit's offerings.

When you log on to Configurit, you need to enter your User Name and Password, and then click the "LOG ON" button on the LEFT.

If you enter your User Name and Password and click the "GUEST LOG ON" button, you will be treated as a "Guest", and not have access to list pricing.

If you are currently logged on to Configurit, quit or exit out of the browser and then log on again.

Configurit is not a database that stores completed and "searchable" Carling catalog numbers. Instead, it is a software program that configures catalog numbers interactively. Therefore, when using Configurit's Part Number Search feature, you must enter a complete and accurate Carling catalog number, including all dashes and slashes in their correct positions.

You can search for a partial catalog number with Carling's Product Search tool. This tool will search a database of currently active Carling Catalog numbers, as opposed to all possible valid catalog numbers, of which there are hundreds of thousands.