Mersen SFRU In-Line Fuse Holde...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$64.87
$14.87

Mersen SFRU In-Line Fuse Holder 1-1/4" x 1/4" 20A 32V with FSFE Fast-Acting Fuse

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

$64.87
$14.87
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Mersen SFRU In-Line Fuse Holder 1-1/4" x 1/4" 20A 32V with FSFE Fast-Acting Fuse

Professional automotive and electronic circuit protection with integrated fast-acting fuse

The Mersen SFRU in-line fuse holder delivers reliable circuit protection for 32V automotive and electronic applications. This professional-grade unit features a molded black thermoset body (UL 94V0) with bayonet-lock metal insert design, tin-plated brass contact rivets for #14 AWG stranded wire, and includes a pre-installed FSFE fast-acting fuse with 19" loop of #14 AWG red insulated wire for immediate installation.

Professional Features & Benefits

  • 20A Current Rating: Handles substantial current loads for automotive and electronic circuit applications with reliable overcurrent protection.
  • 32V AC/DC Compatibility: Versatile voltage rating supports both AC and DC automotive and electronic systems for flexible installation options.
  • Thermoset Body Construction: UL 94V0 rated black thermoset material provides superior heat resistance and flame retardancy for safe operation.
  • Bayonet-Lock Design: Metal insert knob with bayonet-lock mechanism ensures secure fuse retention and easy replacement access.
  • Tin-Plated Brass Contacts: Corrosion-resistant contact rivets designed specifically for #14 AWG stranded wire provide reliable electrical connections.
  • Wide Temperature Range: -40�C to +125�C ambient temperature rating ensures reliable operation in extreme environmental conditions.
  • SAE J554 Standards: Meets automotive industry standards for quality and performance in vehicle electrical systems.

Technical Specifications

  • Ac Voltage: 32 VAC
  • Ampere Range: 20 A
  • Applications: 32V Automotive & Electronic Circuits
  • Body Material: Thermoplastic
  • Body Style: Cylindrical
  • Ce Conformity: Consult Technical Services
  • Connection Terminal Type: Bare Wire Termination
  • Dc Voltage: 32 VDC
  • Lead Free: Consult Technical Services
  • Materials Contact: Brass
  • Mounting Method: Wire
  • Number Of Poles: 1
  • Rohs Compliant: Consult Technical Services
  • Speed Characteristic: Includes FSFE Fast-Acting Fuse
  • Standards: SAE J554

Installation & Operation

  1. Mount the unit in a suitable location with appropriate clearance and access for connections and service.
  2. Connect utility and load conductors following applicable guidelines and the manufacturer's instructions.
  3. Wire generator or power input according to the provided voltage/phase specifications and compatible capacity.
  4. Configure any available load management or control features as supported by the provided specifications.
  5. Test automatic transfer or operational functionality and verify proper performance before placing into service.
  6. Complete final inspection and follow ongoing maintenance practices appropriate to the product category.

Professional Applications

  • Automotive Electrical Systems
  • Electronic Circuit Protection
  • Low Voltage DC Applications
  • Marine Electronics
  • RV and Mobile Equipment
  • Industrial Control Circuits
  • Emergency Vehicle Systems

Why Choose Mersen Quality?

Mersen delivers proven reliability with SAE J554 automotive standards compliance and UL 94V0 flame-retardant materials. The extreme temperature rating from -40�C to +125�C and corrosion-resistant tin-plated brass contacts ensure dependable performance in demanding automotive and electronic applications.

Manufacturer Resources

Product Specs

Ac Voltage:
32 VAC
Ampere Range:
20 A
Applications:
32V Automotive & Electronic Circuits
Body Material:
Thermoplastic
Body Style:
Cylindrical
Ce Conformity:
Consult Technical Services
Connection Terminal Type:
Bare Wire Termination
Dc Voltage:
32 VDC
Lead Free:
Consult Technical Services
Materials Contact:
Brass
Mounting Method:
Wire
Number Of Poles:
1
Rohs Compliant:
Consult Technical Services
Speed Characteristic:
Includes FSFE Fast-Acting Fuse
Standards:
SAE J554

Mersen SFRU – Frequently Asked Questions

How fast can I get the Mersen SFRU 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 SFRU come with a warranty?
Absolutely. The Mersen SFRU 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 SFRU?
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 SFRU from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.