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Manufacturer Resources
Spec Sheet
Product Specs
- Amperage Rating:
- 100A
- Configuration:
- NEMA 12/3R
- Enclosure Material:
- Painted galvanized steel
- Fuse Class Provision:
- Class H
- Fuse Configuration:
- Fusible with neutral
- Max Hp Rating:
- 15, 30/ 20 hp (3PH @Std, TD/250 Vdc)
- Notes:
- For 2-pole applications; use outside poles of 3-pole switch. Can be field modified to meetNEMA 3R rainproof requirements when a factory provided drain hole is opened.
- Number Of Poles:
- Three-pole
- Number Of Wires:
- Four-wire
- Product Category:
- Heavy Duty, Fusible with neutral
- Special Features:
- Enhanced visible blade, upper viewing window
- Voltage Rating:
- 240V
- Wire Size:
- #14-1/0 AWG Cu/Al
- Department:
- Electrical
- Product Group:
- Sensors & Switches
- Product Subgroup:
- Switches
- Product Type:
- Heavy duty fusible safety switch
- Product Length:
- 27 IN
- Product Details:
- Heavy duty fusible safety switch
- Product Height:
- 12 IN
- Product Weight:
- 30 LB
- Product Width:
- 15 IN
- Enclosure:
- NEMA 12/3R
B-LINE DH323NDKW – Frequently Asked Questions
1) Will the Eaton DH323NDKW safety switch work on a 240V three-phase feeder with a neutral?
Yes. The DH323NDKW is a 100A, 240V, three-pole four-wire heavy duty fusible switch with a factory neutral, so it lands a three-phase feeder and carries the neutral through on the bonded neutral kit. It is fusible with neutral, so the three phase legs go through the fuses and the neutral passes through unfused.
2) Can I use the DH323NDKW 100 amp safety switch for a two-pole single-phase disconnect?
Yes, and the manufacturer states how: for 2-pole applications, use the outside poles of the 3-pole switch. The center pole is left idle. That keeps phase spacing correct on a 240V single-phase feeder.
3) Is the DH323NDKW rated for outdoor mounting?
The enclosure is NEMA 12/3R in painted galvanized steel. As shipped it is a NEMA 12 dust-tight box; it can be field modified to meet NEMA 3R rainproof requirements by opening a factory provided drain hole. Do that before you hang it outdoors, not after it has taken water.
4) What fuses does the Eaton DH323NDKW take?
It is built with Class H fuse provisions at 100A, 240V. Class H clips accept Class H or Class K5 style fuses of the same 100A, 250V dimension. If your spec calls for Class R rejection fuses, you need to add a Class R rejection kit; the switch does not come with rejection clips.
5) What wire size do the lugs on the DH323NDKW accept?
Lugs are rated #14 through 1/0 AWG, copper or aluminum. At 100A that covers 1/0 aluminum or the copper sizes below it. If your feeder is larger than 1/0, this switch will not terminate it directly.
6) How can an electrician verify the blades are open before working on the equipment?
That is the point of the enhanced visible blade design: an upper viewing window lets you see the actual switch blades in the open position without opening the door, which supports a visual verification step during lockout/tagout.
7) What size motor can I disconnect with this 100A Eaton heavy duty switch?
Horsepower rating is 15 hp standard and 30 hp with time delay fuses on three phase, and 20 hp at 250 Vdc. Size the fuse to the motor nameplate, not to the 100A switch frame.
8) How much space and support do I need to mount the DH323NDKW disconnect?
Plan for an enclosure of 27 x 15 x 12 inches weighing 30 lb. On drywall or a stud wall that is a two-man lift onto blocking or Unistrut, not a single anchor.
9) Should I use a fusible safety switch or a non-fused disconnect at the motor?
Use the fusible version, like the DH323NDKW, when the disconnect also has to provide the branch circuit overcurrent protection: it carries Class H fuse provisions on all three poles. If the circuit is already protected upstream by a breaker and you only need a local means of disconnection, a non-fused heavy duty switch of the same amperage and enclosure type is the simpler part and there are no fuses to stock.
How fast can I get the B-LINE DH323NDKW delivered?
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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 DH323NDKW come with a warranty?
Absolutely. The B-LINE DH323NDKW 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 DH323NDKW?
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installation tips, and troubleshooting. Contact Us
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