2.5 A Current Rating
The CCMR-2-1/2 has a documented current rating of 2-1/2 ampere, equivalent to 2.5 A.
Littelfuse CCMR-2-1/2 Time-Delay Fuse 2.5A 600VAC 300VDC Class CC
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Technical Specifications
| Brand | Littelfuse |
| Model Number | CCMR-2-1/2 |
| Product Category | Time-Delay Fuse |
| Series | CCMR |
| Fuse Class | Class CC |
| Fuse Type | Dual-Element Time-Delay |
| Current Rating | 2-1/2 A (2.5 A) |
| AC Voltage Rating | 600 VAC |
| DC Voltage Rating | 300 VDC |
| AC Interrupting Rating | 200 kA RMS Symmetrical |
| DC Interrupting Rating | 20 kA |
| Diameter | 10.3 mm |
| Overall Length | 38.1 mm |
| Approvals | UL Listed, CSA Certified |
| Compliance | RoHS Compliant |
Key Features
600 VAC Class CC Fuse
The CCMR-2-1/2 is within the CCMR Class CC range and is rated for AC circuits up to 600 VAC.
300 VDC Rating
The CCMR-2-1/2 is rated for DC circuits up to 300 VDC with a documented 20 kA DC interrupting rating.
Dual-Element Time-Delay
The CCMR series uses dual-element time-delay construction designed to withstand sustained starting currents associated with motors.
200 kA AC Interrupting Rating
The documented AC interrupting rating is 200 kA RMS symmetrical, with Littelfuse also specifying a 300 kA self-certified AC interrupting rating for the series.
Compact Class CC Dimensions
The CCMR-2-1/2 uses the 0 to 30 A CCMR format measuring approximately 10.3 mm in diameter and 38.1 mm in overall length.
Applications
- Motor branch circuit protection
- Small motor circuit protection
- Industrial control circuits
- Motor control panels
- Contactor protection
- Heating circuits
- Industrial electrical panels
- General industrial circuit protection
Purchase Information
We support online purchase of the Littelfuse CCMR-2-1/2 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.
Frequently Asked Questions
What is Littelfuse CCMR-2-1/2?
Littelfuse CCMR-2-1/2 is a CCMR series dual-element time-delay Class CC fuse rated at 2.5 A.
What is the current rating of CCMR-2-1/2?
The documented current rating is 2-1/2 A, equivalent to 2.5 A.
What is the AC voltage rating?
The CCMR-2-1/2 is rated for operation up to 600 VAC.
What is the DC voltage rating?
The CCMR-2-1/2 is rated for operation up to 300 VDC.
Is CCMR-2-1/2 a time-delay fuse?
Yes. The CCMR series uses dual-element time-delay construction designed for motor and motor branch circuit protection.
What fuse class is CCMR-2-1/2?
The CCMR-2-1/2 is a Class CC fuse under UL 248-4.
What is the AC interrupting rating?
The documented AC interrupting rating is 200 kA RMS symmetrical. Littelfuse also specifies a 300 kA self-certified AC interrupting rating for the CCMR series.
What is the DC interrupting rating?
The documented DC interrupting rating is 20 kA.
What are the dimensions of CCMR-2-1/2?
The documented dimensions for the 0 to 30 A CCMR format are approximately 10.3 mm in diameter and 38.1 mm in overall length.
What applications are specified for the CCMR series?
The CCMR series is specified for motor and motor branch circuit protection and is also used for contactor, heating and general industrial circuit protection.
Which fuseholder families are listed for this CCMR range?
Littelfuse lists L60030C series fuse blocks, LPSC and LFPSC series dead-front fuseholders, and 571 and 572 series panel-mount fuseholders for the applicable CCMR current range.
What should be checked before ordering CCMR-2-1/2?
Check the complete CCMR-2-1/2 model designation, 2.5 A current rating, 600 VAC or 300 VDC circuit requirements, Class CC format, interrupting rating, dimensions and fuseholder specifications before purchasing.
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