Mersen CRS Series Class H Ferr...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4.71
Mersen CRS Series Class H Ferrule Fuse, 600VAC

Mersen CRS Series Class H Ferrule Fuse, 600VAC

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Model: CRS15

In Stock (leaves warehouse same day if ordered before 3pm ET)

$4.71
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Mersen CRS Series Class H Ferrule Fuse, 600VAC

The Mersen CRS Series is a Class H, Type D fuse built with ferrule terminals and a 10kA short circuit rating, designed to satisfy the Canadian Electrical Code requirement for low melting-point fuses. Rated 600VAC with a 15A ampere rating and copper terminal construction, this clip-mount fuse delivers dependable overcurrent protection for AC circuits operating at 50/60 Hz.

Key Features

  • Ampere Rating: 15A rating provides reliable, code-compliant overcurrent protection.
  • Fuse Class: Class H construction for broad compatibility with standard fuse holders and panels.
  • Connection/Terminal Type: Ferrule terminals with copper terminal material for a solid, low-resistance connection.
  • Mounting: Clip-mount design for straightforward installation in compatible fuse blocks.
  • Rated Voltage AC (UL): 600V rated voltage supports use across a wide range of AC circuits.
  • AC Max I.R./Breaking Capacity (I1): 10 kA short circuit rating helps protect connected equipment during fault conditions.
  • Frequency: Rated for 50/60 Hz AC systems.
  • Body/Insulating Material: Paper body material forms the fuse's insulating housing.

Certifications & Compliance

  • RoHS Compliant
  • Type D fuse construction meets the Canadian Electrical Code (CEC) requirement for low melting-point fuses

Technical Specifications

  • Connection/Terminal Type: Ferrule
  • AC or DC: AC
  • Mounting: Clip
  • Connection/Terminal Material: Copper
  • AC Max I.R./Breaking Capacity: I1: 10 kA
  • Ampere Rating: 15 A
  • ROHS Compliant: Yes
  • Frequency (Hz): 50/60 Hz
  • Rated voltage AC UL: 600 V
  • Fuse Class: Class H
  • Body/Insulating Material: Paper

Typical Applications

  • Industrial and Commercial Electrical Panels
  • Motor and Branch Circuit Overcurrent Protection
  • Panelboard and Switchgear Fuse Protection
  • Canadian Electrical Code (CEC) Compliant Installations
  • Renovation and New Construction Electrical Systems

Why Mersen?

Mersen's CRS Series Class H fuses combine copper terminal construction, a paper insulating body, and a 10kA short circuit rating to deliver dependable, code-compliant overcurrent protection. With RoHS compliance and Type D construction that meets Canadian Electrical Code requirements, these ferrule fuses are built for reliable performance in professional electrical installations.

Manufacturer Resources

Mersen Product Catalog

Product Specs

list_batch:
MERSEN-20260825
Product Type:
Fuse
Connection Type:
Ferrule
Voltage Rating:
600V
Amperage Rating:
15A
Series:
CRS
Product Material:
Copper
Department:
Electrical
Product Group:
Circuit Protection
Product Subgroup:
Fuses

Mersen CRS15 – Frequently Asked Questions

1) Will a Mersen CRS15 fuse fit a standard Class H fuse block?
Yes. The CRS15 is a Class H fuse with ferrule terminals and a clip-mount body, so it drops into standard Class H clip-style fuse blocks and holders sized for a 600V, 15A ferrule fuse. Class H dimensions are standardized, which is why these interchange across common panels and holders. Terminals are copper for a low-resistance connection.
2) Is the Mersen CRS15 acceptable where the Canadian Electrical Code requires a low melting point fuse?
Yes. The CRS15 is Type D construction, which is what the Canadian Electrical Code calls for when a low melting-point fuse is specified. That makes it the right choice for CEC-governed panel work in Canada rather than a general-purpose Class H renewable or one-time fuse without a Type D designation.
3) Is a 10kA interrupting rating enough for my panel?
The CRS15 carries a 10 kA AC interrupting rating, which is the standard ceiling for Class H fuses. If the available fault current at your panel exceeds 10 kA, a Class H fuse is not the right device and you need a higher interrupting class, such as a Class CC fuse like the Littelfuse CCMR Series. Check the available fault current at the point of installation before committing to Class H.
4) Can a Littelfuse CCMR040 be used in place of the Mersen CRS15 fuse?
No. The Mersen CRS15 is a 15A Class H ferrule fuse rated 600VAC, while the Littelfuse CCMR040 is a Class CC time-delay fuse rated 40A. Class CC and Class H bodies are different sizes and are not interchangeable in the same fuse clips, and the ampere ratings differ, so the CCMR040 is a different circuit protection choice rather than a drop-in replacement for the CRS15.
5) My meter panel calls for the Square D PowerLogic fuse pack - will the Mersen CRS15 work there?
No. The Square D PowerLogic energy meter fuse pack is a set of three 0.5A 600V fuses sized for metering voltage inputs. The Mersen CRS15 shares the 600V class but is a 15A Class H fuse for branch and motor circuit overcurrent protection, so it is far too large for a metering circuit. Use the PowerLogic pack for the meter and reserve the CRS15 for panel and branch circuit protection.
6) Is the Mersen CRS15 a time-delay fuse for motor starting?
The CRS15 is a Class H Type D fuse and the data does not describe it as time-delay. For motor circuits where starting inrush would nuisance-open a standard fuse, a time-delay device such as the Littelfuse CCMR Series Class CC time-delay fuse is the type to look at. Use the CRS15 where straightforward branch circuit and panel overcurrent protection is what the job calls for.
7) What is the difference between this Mersen CRS fuse and a glass tube fuse like the Littelfuse AGU?
Two different worlds. The CRS15 is a 600VAC Class H power fuse with a paper insulating body and copper ferrules, built for industrial and commercial panelboards and switchgear. The Littelfuse AGU and AGA glass tube fuses are small glass-body fuses, and the Littelfuse BLF is a 250V midget fast-acting type. Low-voltage glass and midget fuses are not substitutes for a 600V Class H panel fuse.
8) What exact part number do I order for the 15 amp Mersen CRS fuse?
Order Mersen CRS15. That is the 15A, 600VAC Class H ferrule fuse in the CRS Series. Amperage is fixed at 15A on this model, so if you need another rating you are looking at a different CRS part number.
9) What should I use instead of the Mersen CRS15 for a 250V midget fuse holder?
The CRS15 is built for 600VAC Class H clips, so it does not fit a midget holder. For that application the Littelfuse BLF Series is a midget fast-acting fuse rated 250V with a laminated tube body. Confirm the ampere rating you need, since the CRS15's 15A rating does not carry across to a different fuse class.
10) Is the Mersen CRS15 RoHS compliant for a spec job?
Yes, the CRS15 is RoHS compliant, which covers most institutional and government procurement specs calling for restricted-substance compliance on electrical components.
How fast can I get the Mersen CRS15 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Mersen CRS15 come with a warranty?
Absolutely. The Mersen CRS15 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Mersen CRS15?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Mersen CRS15 from ZenSupply?
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