Mersen UltraSafe™ Fuse Holder,...
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$361.07
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Mersen UltraSafe™ Fuse Holder, 3-Pole, 800VAC/1000VDC, 22x58 Fuse, Visual Indicator

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Model: S331170

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

$361.07
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Mersen UltraSafe™ Fuse Holder, 3-Pole, 800VAC/1000VDC, 22x58 Fuse, Visual Indicator

The Mersen UltraSafe™ fuse holder is a modular, finger-safe fuse-holding solution built for professional panel building and industrial control applications. This 3-pole unit accepts 22x58 size fuses and is rated 800VAC (UL) / 1000VDC (UL), with a 125A ampere rating and a 100kA short circuit current rating (SCCR), delivering reliable overcurrent protection on DIN rail-mounted equipment. Constructed of tough thermoplastic/thermoset material, the holder is finger-safe to an IP20 grade of protection under IEC standards, and includes a visual blown-fuse indicator for fast troubleshooting.

Key Features

  • 3-Pole Configuration: Triple-pole design (Number of Poles: 3-Pole) for multi-conductor circuits, field-assemblable to 1, 2, 3, or 4 poles with a pin-ties assembly kit.
  • Fuse Compatibility: Sized for 22x58 fuses with a Max Fuse Rating of 125 A and clip-in fuse installation.
  • Voltage Rating: Rated voltage AC UL 800 V / DC UL 1000 V (AC IEC 690 V / DC IEC 690 V), with a Rated Insulation Voltage of 750 V and Rated Impulse Withstand Voltage of 8 kV for AC/DC applications.
  • Ampere Rating: 125 A Ampere Rating with a Conventional Free Air Thermal Current With Fuse-Links (Ith) of 125 A and a Short Circuit Current Rating (SCCR) of 100 kA.
  • Visual Blown-Fuse Indicator: Built-in visual indication system for quick identification of a blown fuse; microswitches for remote indication can also be supplied or ordered separately.
  • Terminal Connections: Clip connection/terminal type with Tin-Plated Copper terminal material, Wiring range of 1/0 - #14, and a Torque Rating of 35.403 lb-in.
  • Durable Construction: Body/Insulating Material is Polyamide, built from tough and durable thermoplastic or thermoset material for long service life.
  • Mounting: DIN rail mounting per EN 60715, with a Frequency rating of 50...60 Hz.

Certifications & Compliance

  • ROHS Compliant
  • Finger-safe to IP20 grade of protection under IEC standards
  • Rated Voltage AC UL 800 V / DC UL 1000 V; AC IEC 690 V / DC IEC 690 V

Technical Specifications

  • Indication System: Yes
  • ROHS Compliant: Yes

Typical Applications

  • Industrial Control Panels and Motor Control Centers
  • DIN Rail Panel Wiring and OEM Panel Building
  • Short-Circuit and Overcurrent Protection Circuits
  • AC/DC Power Distribution Requiring 800VAC/1000VDC Fuse Protection
  • Applications Requiring Remote Blown-Fuse Indication via Microswitch

Why Mersen?

Mersen's UltraSafe™ range combines finger-safe IP20 modular design with tough thermoplastic/thermoset construction, tin-plated copper terminals, and a 100 kA short circuit current rating for demanding electrical environments. With ROHS-compliant materials, DIN rail mounting, and integrated visual fuse indication, this 3-pole fuse holder supports safe, code-conscious fuse changing and reliable, long-term performance in professional electrical installations.

Manufacturer Resources

Product Specs

Connection/Terminal Type:
Clip
Indication System Type:
Visual Indicator
Connection/Terminal Material:
Tin-Plated Copper
Torque Rating:
35.403 lb-in
Indication System:
Yes
Ampere Rating:
125 A
ROHS Compliant:
Yes
Frequency (Hz):
50 ... 60 Hz
Rated voltage DC IEC:
690 V
Rated voltage AC UL:
800 V
Number of Poles:
3-Pole
Conventional Free Air thermal Current With Fuse-Links Ith:
125 A
Wiring range:
1/0 - #14
Rated Insulation Voltage:
750 V
AC or DC:
AC/DC
Short Circuit Current Rating (SCCR):
100 kA
Installation Mounting:
DIN rail acc. EN 60715
Max Fuse Rating:
125 A
Fuse Installation Method:
Clip-in
Rated voltage DC UL:
1000 V
Rated voltage AC IEC:
690 V
Design Details:
triple pole
Fuse Size:
22x58
Rated Impulse Withstand Voltage:
8 kV
Body/Insulating Material:
Polyamide
list_batch:
MERSEN-20260825
Department:
Electrical
Product Group:
Wiring Devices
Product Type:
Fuse Holder

Mersen S331170 – Frequently Asked Questions

How fast can I get the Mersen S331170 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 S331170 come with a warranty?
Absolutely. The Mersen S331170 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 S331170?
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
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