Eaton DH263FDK Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH263FDK
Quick Summary
Eaton DH263FDK heavy duty fusible safety switch is designed to safely interrupt power in industrial control panels and service entrances. Engineers and maintenance teams face downtime and arc-flash risk when isolating feeders; this unit provides reliable, code-compliant protection with straightforward field modification. UL Listed, NEC barrier-compliant, and a NEMA 12 enclosure ensure robust protection for harsh industrial environments, while the two-pole design and 600 V rating support common power distribution needs. This combination translates into improved uptime and regulatory peace of mind for facilities relying on dependable electrical protection, with compatibility for standard Cu/Al wiring and a compact footprint that supports tight installation spaces.
Product Information
Extended Description
DH263FDK Eaton: Eaton Heavy duty single-throw fused safety switch, 100 A, NEMA 12, Painted galvanized steel, Class H, Fusible without neutral, Two-pole, Two-wire, 600 V, Max Hp: 30, 40 hp/25 hp (1PH @480,600 V TD/600 Vdc), #14-#1/0 Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH263FDK
UPC
782113206523
Product Length/Depth
25.5 in
Product Height
9 in
Product Width
13.25 in
Product Weight
27 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Compliances
NEC 230.62 (C) Compliant Barrier
Certifications
UL Listed
Catalog Notes
Suitable for service entrance use with a neutral or ground lug kit installed. Can be field modified to meetNEMA 3R rainproof requirements when a factory provided drain hole is opened.
Enclosure
NEMA 12
Enclosure material
Painted galvanized steel
Fuse class provision
Class H
Fuse configuration
Fusible without neutral
Number Of Poles
Two-pole
Number of wires
2
Type
Heavy duty fusible safety switch
Wire size
#14-1/0 AWG Cu/Al
Amperage Rating
100A
HP rating - max
30, 40 hp/25 hp (1PH @480,600 V TD/600 Vdc)
NEMA rating
NEMA 12/3R
Voltage rating
600 V
Product Category
Heavy Duty, Fusible without neutral
Feature: 100 A amperage rating, two-pole design, fusible without neutral, and 600 V rating. Business Impact: Enables safe isolation of large feeders and motors, reduces arc-flash exposure, and protects circuits against overload. Application: Service entrances and main disconnects in industrial control panels in manufacturing facilities. Feature: NEMA 12 enclosure with painted galvanized steel construction. Business Impact: Provides durable environmental protection against dust, splashes, and oils, supporting reliable operation in indoor or semi-exposed spaces. Application: Indoor electrical rooms and equipment bays. Feature: Class H fuse and fusible without neutral configuration. Business Impact: Improves selectivity and spares flexibility for field wiring changes, lowering maintenance time and component swaps. Application: Motor feeder circuits with varied load profiles. Feature: Wire size range #14-1/0 Cu/Al. Business Impact: Supports common industrial wiring practices, simplifying installation and reducing the risk of miswire or retrofit errors. Application: Field connections to service panels and feeders. Feature: HP rating up to 30/40 hp (1PH @480/600 V; 25 hp TD/600 Vdc). Business Impact: Matches typical motor loads for single-phase lines, enabling a single device to cover diverse equipment without additional components. Application: Small to mid-size motors in production lines. Feature: UL Listed, NEC barrier compliance, and NEMA 12/3R rating. Business Impact: Facilitates regulatory compliance and easier inspections, while preserving protection in a range of environments. Application: Industrial distribution and process automation installations.
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FAQs
DH263FDK is designed for typical service entrance and industrial control panel applications, and it accepts wiring from #14 to 1/0 AWG Cu or Al in a two-pole, fusible configuration. For compatibility, use the provided neutral/ground lug kit if needed and verify bus or lug alignment with your enclosure. The 25.5 inch depth helps accommodate wiring runs while keeping the footprint compact.
Rated at 100 A with a 600 V maximum voltage, the DH263FDK supports two-pole operation and fusible without neutral. Its horsepower ratings are 30/40 hp for a single-phase application at 480 or 600 V (TD/600 VDC). The device uses Class H fuses and is UL Listed, aligning with typical industrial motor control and feeder designs.
By itself, the DH263FDK uses a NEMA 12 enclosure intended for indoor or semi-exposed installations. For rainproof needs, Eaton notes it can be field modified to meet NEMA 3R rainproof requirements when a factory-provided drain hole is opened. For harsh outdoor spaces, consider enclosure upgrades or situate the switch in a protective enclosure while maintaining proper heat dissipation.
It carries UL Listed certification and NEC barrier compliance, with NEMA 12/3R ratings to support dry, semi-dusty environments. Catalog notes confirm suitability for service entrance use with lug kits and potential field modification for rainproof service. These certifications simplify audits, reduce compliance risk, and align with common procurement specifications for electrical protection devices.
Choosing the DH263FDK delivers predictable maintenance planning with a one-year warranty and Eaton’s support, reducing unplanned downtime by providing reliable isolation and fast field wiring. The rugged NEMA 12 enclosure and Class H fusing withstand industrial environments, lowering repair costs and spare parts needs. Overall, the device helps protect critical lines and supports long-term lifecycle cost savings.