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Manufacturer Resources
Spec Sheet
Product Specs
- Amperage Rating:
- 400A
- Fuse Configuration:
- Non-fusible
- Number Of Poles:
- Three-pole
- Product Category:
- Switch Body
- Series:
- R9
- Voltage Rating:
- 600V
- Department:
- Electrical
- Product Length:
- 17.25 IN
- Product Height:
- 8.75 IN
- Product Weight:
- 13.25 LB
- Product Width:
- 14.25 IN
- Certifications:
- UL 98
B-LINE R9E3400U – Frequently Asked Questions
1) Is the Eaton B-Line R9E3400U disconnect switch fusible or non-fusible?
Non-fusible. The R9E3400U is a switch body only, so there are no fuse clips and no overcurrent protection built in. If the circuit needs fuse protection at the disconnect, you need a fusible rotary switch body instead; with this one, protection has to come from upstream breakers or fuses.
2) What amperage and voltage can the R9E3400U rotary disconnect handle?
The R9 Series R9E3400U is rated 400A at 600V, three-pole. That covers a standard 480V three-phase feeder or motor circuit up to 400 amps. For anything above 600 volts or drawing more than 400 amps continuous, this is the wrong frame size.
3) How much space do I need in the enclosure for the R9E3400U switch body?
Plan around 17.25 by 14.25 by 8.75 inches for the switch body itself, and it weighs 13.25 pounds, so the back panel and any strut supporting it need to carry that load plus the cable pull. Add clearance beyond those figures for 400 amp lug bending space and for the shaft and operating handle, which mount separately on a rotary disconnect.
4) Does the R9E3400U come with an operating handle and shaft?
It is catalogued and supplied as a switch body, model R9E3400U. A rotary disconnect is assembled from the body plus a shaft and a door-mounted or through-the-door operating handle sized to the enclosure depth. Order those pieces alongside it, and match the shaft length to how deep your enclosure is.
5) Will a 400 amp rotary disconnect switch body work on a single-phase circuit?
The R9E3400U is built as a three-pole switch. On single-phase you would simply land the two ungrounded conductors on two of the three poles and leave the third idle, which is common practice, but if you are buying new for a dedicated single-phase load a two-pole body is the cleaner fit. For three-phase 480V or 600V feeders this is the intended configuration.
6) Can I use this Eaton rotary switch as a motor disconnect within sight of the equipment?
A 400A non-fusible three-pole rotary switch is a standard choice for a motor or equipment disconnecting means, since the switch provides visible, lockable isolation without duplicating overcurrent protection already provided at the panel. Confirm the motor's full load current stays within the 400 amp rating and that your enclosure carries the environmental rating the location requires.
7) Where do I find the detailed specifications for the B-Line R9E3400U?
Eaton publishes a spec sheet for the R9E3400U, and it is linked directly from the product information. That document is the place to confirm lug wire ranges, shaft and handle pairings, and enclosure mounting detail before you cut the panel.
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reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the B-LINE R9E3400U come with a warranty?
Absolutely. The B-LINE R9E3400U is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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