Bussmann CHPV2 Series Photovol...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$246.05
Bussmann CHPV2 Series Photovoltaic Fuse Block, Modular Two-Pole, 1000 Vdc

Bussmann CHPV2 Series Photovoltaic Fuse Block, Modular Two-Pole, 1000 Vdc

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Model: CHPV2IU

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

$246.05
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Bussmann CHPV2 Series Photovoltaic Fuse Block, Modular Two-Pole, 1000 Vdc

The Bussmann CHPV2 Series Photovoltaic Fuse Block from Eaton is a modular, two-pole fuse holder engineered for 1000 Vdc, 30A photovoltaic circuit protection. Designed for solar combiner boxes and PV disconnect assemblies, this CHPV2 platform is available in IU and U style configurations to match your system's mounting requirements. Its compact, modular construction simplifies panel layout while delivering dependable overcurrent protection for demanding solar installations.

Key Features

  • Voltage Rating: 1000 Vdc rating supports demanding photovoltaic circuit protection applications.
  • Amperage Rating: 30A capacity provides reliable overcurrent protection in solar combiner and PV disconnect assemblies.
  • Modular Two-Pole Design: The CHPV2 configuration accommodates two-pole PV fuse holders for streamlined panel installation.
  • Compact Footprint: Measures 3.28 in wide x 2.91 in high x .69 in deep, fitting tight combiner box and enclosure layouts.
  • Lightweight Construction: At just .22 lb, the fuse block adds minimal mass to PV combiner assemblies.
  • Cold-Weather Rated: Rated to a minimum operating temperature of -20 °C, suited for outdoor solar installations.
  • Style Options: Available in IU and U style configurations built on the same CHPV2 modular two-pole platform.

Technical Specifications

  • Product Length Depth: .69 in
  • Product Height: 2.91 in
  • Amperage Rating: 30 A
  • Operating Temperature Min: -20 °C
  • Compliances: Contact factory
  • Product Weight: .22 lb
  • Product Width: 3.28 in

Typical Applications

  • Photovoltaic (PV) Combiner Box Assemblies
  • Solar Array Overcurrent Protection
  • Renewable Energy Circuit Disconnects
  • Commercial and Utility-Scale Solar Installations
  • Modular Fuse Panel Upgrades and Retrofits

Why Bussmann?

Eaton's Bussmann series brings decades of circuit protection engineering to solar applications, and the CHPV2 modular fuse block is built for the demanding voltage and current conditions of PV systems. Its two-pole modular design and 1000 Vdc, 30A rating give installers a dependable option for combiner box and disconnect assemblies across both IU and U style configurations. Choose Bussmann for consistent quality across your photovoltaic circuit protection components.

Manufacturer Resources

Product Specs

Product Length Depth:
.69 in
Product Height:
2.91 in
Voltage Rating:
1000Vdc
Department:
Electrical
Number Of Poles:
Two-pole
Amperage Rating:
30A
Operating Temperature Min:
-20 °C
Compliances:
Contact factory
Product Weight:
.22 lb
Product Width:
3.28 in
Product Type:
Fuse Block
Series:
CHPV
Configuration:
Two-Pole
Product Group:
Wiring Devices

Bussmann CHPV2IU – Frequently Asked Questions

1) Will a Bussmann CHPV2 fuse block handle a 1000 Vdc solar string?
Yes. The CHPV2 photovoltaic fuse block is rated 1000 Vdc at 30A, which is the rating you need for PV string and combiner box circuits. It is a DC-rated PV fuse block, not a repurposed AC block, so it belongs in combiner boxes, string disconnects and PV fuse panels where the open-circuit string voltage can reach 1000 V.
2) What is the difference between the CHPV2IU and CHPV2U fuse blocks?
Both are the same modular two-pole CHPV2 platform rated 1000 Vdc, 30A. The difference is the style: order CHPV2IU for the IU style and CHPV2U for the U style, matched to how the block mounts in your panel. Pick the style that matches the existing blocks in the combiner box so the assembly stays uniform.
3) How many poles do I need for a PV string, and does one CHPV2 cover both conductors?
The CHPV2 is a two-pole block, so a single unit carries two fused positions. On an ungrounded PV array where both the positive and negative conductors are fused, one CHPV2 covers one string. If you are only fusing the positive leg, one two-pole block covers two strings. Count your strings and your fusing scheme before you set the quantity.
4) Can I use a Class R or Class G fuse block instead of a PV fuse block on a solar array?
No, and this is a common and expensive mistake. Solar strings are DC, and a Class R block like the Littelfuse LFR60030-3CID or a Class G block like the LFG60015-1SQDINR is a 600V AC-rated device. The CHPV2 is built for 1000 Vdc PV duty. Use the PV block on the array side; the Class R and Class G blocks belong on the AC side of the system or in conventional panel work.
5) Will a CHPV2 fuse block fit inside a tight combiner box enclosure?
Footprint is 3.28 x 2.91 x .69 inches, so it takes very little panel real estate. At .22 lb it adds almost nothing to the assembly weight, which matters on pole and rack mounted combiner boxes. Lay out your DIN or panel space against those three numbers before you commit to a block count.
6) Can I use this Bussmann PV fuse block in an outdoor combiner box in cold climates?
It carries a minimum operating temperature of -20 C, which covers most outdoor PV combiner installations. If your site sees colder sustained ambients than that, the block is outside its stated range and you should spec a holder rated lower. The enclosure itself still has to carry the outdoor rating; the block does not provide it.
7) Does the CHPV2 fuse block come with fuses?
No. The CHPV2 is the holder only. You order the PV fuses separately, sized to your string current and not exceeding the block's 30A rating. Size the fuse to the module manufacturer's series fuse rating for the array, then confirm the fuse is a 1000 Vdc PV rated cartridge to match the block.
8) What is the difference between the Bussmann CHPV2 and a Littelfuse POWR-BLOKS LD block?
The Littelfuse LD Series POWR-BLOKS is a bolt-in mounting fuse block, fastened directly to the panel or backplate. The Bussmann CHPV2 is a modular two-pole photovoltaic fuse block rated 1000 Vdc, 30 A, measuring 3.28 in wide by 2.91 in high by .69 in deep and weighing .22 lb, so it is built to gang into compact combiner box layouts. Choose by the assembly: bolt-in power distribution versus modular PV string protection.
9) What else could I use if I need a bolt-in fuse block rather than a modular PV block?
For non-PV, conventional power distribution work the Littelfuse LD Series POWR-BLOKS is a bolt-in mounting fuse block. That is a different job from the CHPV2, which is a modular two-pole PV holder for 1000 Vdc solar circuits. Choose the POWR-BLOKS style for bolted panel distribution and the CHPV2 for the array side of a solar system.
How fast can I get the Bussmann CHPV2IU 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 Bussmann CHPV2IU come with a warranty?
Absolutely. The Bussmann CHPV2IU 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 Bussmann CHPV2IU?
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 Bussmann CHPV2IU from ZenSupply?
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