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Manufacturer Resources
Product Specs
- Amperage Rating:
- 40E
- Class:
- Class E
- Notes:
- Also Used in RDB Fuseholders. Mountings are no longer available for use with BA refills, but a small range of replacement fuse holders are still available. New and replacement applications should use RBA fuses that have superseded BA fuses.
- Voltage Rating:
- 7.2 kV
- Department:
- Electrical
- Product Type:
- RBA2
- Product Length:
- 11.25 IN
- Product Details:
- RBA2
- Product Height:
- 2.5 IN
- Product Weight:
- 1.05 LB
- Product Width:
- 2.5 IN
B-LINE 8RBA2-40E – Frequently Asked Questions
1) What voltage and amp rating is the Eaton B-Line 8RBA2-40E fuse refill?
The 8RBA2-40E expulsion fuse refill is rated 40E amps at 7.2 kV, and it is a Class E fuse. Class E means it is intended for feeder and transformer protection rather than the fast motor-circuit duty of an R-rated fuse, so match it to the 7.2 kV system it was specified for.
2) Will an RBA2 refill work in an RDB fuseholder?
Yes. The RBA2 refill is also used in RDB fuseholders, so if your holder is an RDB you are in the right family. Confirm the holder is sized for the RBA2 refill and that the amp rating matches your coordination study.
3) I have old BA fuse refills in service. Can I replace them with RBA fuses?
RBA fuses have superseded BA fuses, and new or replacement applications should use RBA. The catch is the mounting: mountings are no longer available for use with BA refills, though a small range of replacement fuse holders is still offered. If your existing BA mounting is failing, plan on changing to an RBA-compatible holder rather than hunting BA parts.
4) What size is the 8RBA2-40E fuse refill and how much does it weigh?
It measures 11.25 in long by 2.5 in by 2.5 in and weighs 1.05 lb, which matters when you are checking clearance inside a cutout or switchgear compartment before ordering a box of them.
5) Is the 8RBA2-40E a complete fuse or just the replaceable element?
It is a refill, the expendable expulsion fuse element that drops into an existing RBA-type or RDB fuseholder after a fault. The holder and mounting stay in place; you order the refill by amp rating, in this case 40E at 7.2 kV.
6) What part number do I order for a 40 amp RBA2 refill?
Order Eaton B-Line 8RBA2-40E. The 8 prefix and RBA2 identify the refill series and the 40E is the amp rating, so a different amperage in the same family changes only the trailing figure.
How fast can I get the B-LINE 8RBA2-40E 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 B-LINE 8RBA2-40E come with a warranty?
Absolutely. The B-LINE 8RBA2-40E 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 B-LINE 8RBA2-40E?
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 B-LINE 8RBA2-40E from ZenSupply?
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and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.