Circuit Breakers
Fuse Holders, Blocks and Accessories
Markets & Applications

Help Center

Need Help? Find the answers to your questions by clicking on one of FAQs below.

You can Contact Us to answer your technical or commercial questions. Our support team is dedicated to providing the answers you need when you need them.


How do I order from OptiFuse?

You can place your orders with OptiFuse in three easy ways:


Call our Sales Department at (619) 593-5050

Fax your order to our toll-free fax at (619) 593-5055

E-mail us at [email protected]


OptiFuse Sales personnel are available from 6:30am – 4pm Pacific Time, Monday through Thursday and 6:30am – 3pm on Fridays, to enter your order or answer any questions you may have. We value receiving and sending information in a timely manner, so messages or e-mails left after hours will be promptly answered the following business day.

I tried to buy from OptiFuse directly but was informed I had to purchase through a local distributor. Why can't I order directly from OptiFuse?

In order to better serve our customers, building a network of trusted, informed, and trained partners is one of our primary goals. Because of this, OptiFuse is only able to sell through its extensive network of authorized distributors.

If you are a North American OEM customer, please check our Find a Distributor page to find a local distributor in your area . You can also phone or e-mail us at [email protected] and we will help you to locate an authorized OptiFuse distributor that best meets your specific needs.

If you are a distributor and would like to learn more about OptiFuse’s authorized distributor program, please contact us so we can provide you will additional information.

My local distributor doesn't have inventory of an item I need urgently. What should I do?

Our products are readily available through a selected network of online distributors. Please go to our Buy Online section in the Find a Distributor page and check the availability of a product in our online distributors websites.

Besides, OptiFuse has an extensive inventory of the most popular over-current and over-voltage protective devices at our warehouse in California. If we have the item you are looking for in-stock at our facility, that item can be ordered through your local distributor and dropped shipped to you at no additional cost to you the following day (however you are still responsible for paying any expedited freight charges).

There is also the possibility that your item might be readily available at another distributor.

Please contact your distributor or OptiFuse directly at [email protected] to discuss options that best fit your individual needs.

My application has special requirements which appear to fall outside your standard circuit protection offerings, can I order products not featured in your catalog?

We offer a wide range of value-added options and customized solutions to meet your specific needs. If you are unable to find the particular item you are looking for, please contact our sales representatives at (619) 593-5050 or by email [email protected] and tell us your special requirements.

How can I get samples of your products?

We would be happy to send you a sample of any product you are considering purchasing at no cost to you. If you are located outside of North America, we only ask that you please pay the cost of freight to your specific location.

Please contact our sales representatives at (619) 593-5050 or email [email protected] with your sample request.

Do you have a minimum order?

OptiFuse does not require any of its authorized distributors to purchase or maintain a minimum inventory of OptiFuse products to establish or remain an authorized OptiFuse distributor.

However, it should be noted that OptiFuse does recommend that all authorized distributors maintain a sufficient level of local inventory to properly service your customer base. Failure to keep the proper inventory may result in long-leads times and the possibility of losing your customers to another distributor who has the items in-stock.

Please contact our sales representatives at (619) 593-5050 or email [email protected] for more information.

How do I find your prices?

An electronic price guide for most of OptiFuse’s standard items is available to all authorized distributors. Pricing is determined by the part number and number of parts to be purchased. Certain “blanket” or scheduled orders can be accepted to help reduce the piece price.

Please contact our sales representatives at (619) 593-5050 or email [email protected].com for more pricing information or a referral to one of authorized distributors.

What are your payment terms?

OptiFuse’s standard payment terms to its authorized distributors are “net 30 days” from the time of shipment upon approved credit. Credit approval of new accounts can take up to 10 business-days. Payment is accepted in U.S. dollars only.

Visa, MasterCard and American Express payments are also accepted (through PayPal).

If you want to establish credit with OptiFuse, please contact our sales representatives at (619) 593-5050 or email [email protected] and they will walk you through the approval process.

Can I pay via credit card?

Yes. Visa, MasterCard and American Express payments are accepted (through PayPal).


What are OptiFuse standard freight terms and how will my order be shipped?

The standard INCO terms of OptiFuse are “FOB – shipping point” with the customer responsible for their own shipping costs from the OptiFuse warehouse in California. Typically, we can arrange shipments of our products by most common carriers, as specified by our customers. This includes UPS, FedEx, DHL or most over-the-road trucking companies.

Many customers prefer to use their own shipping account, however it is also possible to use OptiFuse UPS or FedEx account with the actual freight charges added to your invoice (no service charges will be added).

Same-day shipments are generally available on most in-stock products if orders are received by OptiFuse before 12pm – Pacific Time.

Please contact our sales representatives at (619) 593-5050 or email [email protected] for additional more information and/or to discuss all your shipping options.

How soon can I expect delivery on my order?

Orders for in-stock items will normally ship the same day or next day. Priority shipments of in-stock items must be received by 2pm Pacific Time to insure same-day shipping.

You will receive an email confirmation when your order ships. If your order was shipped by UPS or FedEx, a tracking number will be included on the shipping confirmation allowing you to electronically track your shipment via the shipper’s website or app.

What is your return policy?

We are committed to provide you with the best service possible. OptiFuse offers a 7-day (from the date of receipt) refund, replacement or credit policy on all new, unused and undamaged products. Returns due to confirmed product defects, workmanship or shipping errors may be returned up to 30-days from the time of receipt and is not subject to return-freight policy below.

Special orders (including blanket orders and large-quantity order) may be non-cancellable and/or non-returnable. Products and quantities, subject to this limitation, will always be identified at the time of ordering.

Please note that the purchaser shall bear the cost of shipping on products returned and that any item delivered via trucking cannot be refused or returned for credit once in transit.

All returns must be pre-approved by applying for a Return Materials Authorization (RMA).

Please contact our sales representatives at (619) 593-5050 or email [email protected] for return product information prior to shipping the products to OptiFuse.

How do I get a Return Materials Authorization (RMA)?

All returns must be pre-approved by applying for a Return Materials Authorization (RMA). Please contact our sales representatives at (619) 593-5050 or email [email protected] and they will walk you through the RMA form that you need to fill providing the order information and a description of the issue.

Once your request has been received, you will be contacted within 2-3 business days with a Return Materials Authorization Number and instructions for sending back the items. Returned items without an RMA will not be accepted and will be returned to sender.

Return freight charge must be prepaid. C.O.D. returns cannot be accepted.

What is OptiFuse Warranty policy?

OptiFuse warrants that its products will conform with all pertinent specifications and will be free from defects caused by faulty materials and workmanship.

There are several additional important terms and conditions to the above OptiFuse product warranty. Please visit OptiFuse’s Terms and Conditions of Sale to locate and read the complete warranty policy.

The applicable warranty period for all products is the 60-day period after shipment from OptiFuse. At no time is OptiFuse responsible for goods damaged or lost in transit (if this occurs, you should file a claim with your carrier).


What is California Proposition 65 and does OptiFuse comply with this law?

Proposition 65 is a State of California regulatory law which requires businesses and individuals, who sell products in the State of California, to provide warnings to people when significant amounts of toxic chemical compounds and elements are present in their products.

The State of California has identified specific chemical compounds and elements that may cause cancer, birth defects and/or reproductive harm. A complete list of these chemical compounds and elements, as well as the maximum levels of exposure, can be found at https://www.p65warnings.ca.gov.

All products sold by OptiFuse comply with current Prop 65 requirements by adding the appropriate warning labels to inner and outer carton packaging when mandated.

What is OptiFuse Environmental policy?

OptiFuse recognizes its responsibility to a maintain a safe and ecologically friendly planet and is committed to providing products that meet or exceed RoHS directives and REACH regulations.

All of OptiFuse products are free of lead and suppliers of raw material have been surveyed as to comply with conflict mineral regulations.

Check here to see our Compliance Statements

Does OptiFuse have a Privacy Policy for www.optifuse.com?

Click here to see OptiFuse Privacy Policy.

Does OptiFuse have a Cookie Policy for www.optifuse.com?

Click here to see OptiFuse Cookie Policy.

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