12 A Current Rating
The CCMR-12 corresponds to the 12 A rating within the Littelfuse CCMR Class CC fuse series.
Available to order
Request a QuoteBulk Orders, Part Number Assistance, or Alternative Payment Options? Contact Our Team!
Shop with confidence. If for any reason you are not satisfied, you can take advantage of our hassle-free return and exchange service within 30 days. The seller covers all shipping costs for returns or exchanges—there are no extra shipping fees for you to pay, ensuring a worry-free shopping experience.
Available payment methods
Ships from 4 U.S. Warehouses – Contact Us for Estimated Delivery Times.
Technical specifications, features, applications and purchasing information.
| Brand | Littelfuse |
| Model Number | CCMR-12 |
| Product Category | Time-Delay Fuse |
| Series | CCMR |
| Fuse Class | Class CC |
| Fuse Type | Dual-Element Time-Delay |
| Current Rating | 12 A |
| AC Voltage Rating | 600 VAC |
| DC Voltage Rating | 250 VDC |
| AC Interrupting Rating | 200 kA RMS Symmetrical |
| DC Interrupting Rating | 20 kA |
| Catalog Number | CCMR012 |
| Product Marking | CCMR 12A |
| Diameter | 10.3 mm |
| Overall Length | 38.1 mm |
| Applicable Standard | UL 248-4 Class CC |
| Approvals | UL Listed, CSA Certified |
The CCMR-12 corresponds to the 12 A rating within the Littelfuse CCMR Class CC fuse series.
The CCMR-12 is rated for AC circuits up to 600 VAC and uses the compact Class CC cartridge format.
The CCMR-12 supports DC circuit applications up to its documented 250 VDC rating.
Dual-element time-delay construction is designed to accommodate temporary starting currents while providing overcurrent protection.
The documented interrupting ratings are 200 kA RMS symmetrical for AC circuits and 20 kA for DC circuits.
The Class CC cartridge measures approximately 10.3 mm in diameter and 38.1 mm in overall length.
We support online purchase of the Littelfuse CCMR-12 Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.
What is Littelfuse CCMR-12?
Littelfuse CCMR-12 is a CCMR series Class CC dual-element time-delay fuse with a 12 A current rating.
What is the current rating of CCMR-12?
The current rating is 12 A.
What is the AC voltage rating?
The CCMR-12 is rated for operation up to 600 VAC.
What is the DC voltage rating?
The CCMR-12 is rated for operation up to 250 VDC.
Is CCMR-12 a time-delay fuse?
Yes. It is a dual-element time-delay fuse from the Littelfuse CCMR series.
What fuse class is CCMR-12?
CCMR-12 uses the Class CC fuse format and is covered by UL 248-4.
What is the AC interrupting rating?
The documented AC interrupting rating is 200 kA RMS symmetrical.
What is the DC interrupting rating?
The documented DC interrupting rating is 20 kA.
What are the dimensions of CCMR-12?
The fuse measures approximately 10.3 mm in diameter and 38.1 mm in overall length.
What is the catalog number for the 12 A CCMR fuse?
The 12 A CCMR model is identified by catalog number CCMR012 and product marking CCMR 12A.
What applications are suitable for CCMR series fuses?
Typical applications include motor branch circuits, contactors, heating circuits, industrial controls and machine control equipment.
What should be checked before ordering CCMR-12?
Check the CCMR-12 model designation, 12 A current rating, required 600 VAC or 250 VDC circuit rating, Class CC format, interrupting requirements, dimensions and the specifications of the intended fuseholder before purchasing.
Send us your part number and technical requirements.