Overview
The Eaton Cutler-Hammer DH364UGK is a reliable, non-fusible safety disconnect switch engineered for heavy commercial and industrial applications where service continuity and electrical safety are critical. This 3-pole, 200-ampere switch operates at 600V AC and features a NEMA 1 painted steel enclosure suitable for indoor use. The DH364UGK is rated for 100% load-break and 100% load-make operation, making it ideal for service-entrance and main disconnect applications in power distribution and control systems.
Key Features
- Visible Double-Break Quick-Make/Quick-Break Rotary Blade Mechanism — Twin contact points ensure positive open/close action and prevent contact burning for extended service life
- Triple Padlocking Capability — Large hasp accommodates up to three 3/8″ shank locks for enhanced personnel safety during maintenance and lockout/tagout (LOTO) operations
- Mechanically Interlocked Cover — Door cannot open when handle is in the ON position; built-in defeater mechanism allows authorized access when necessary
- 100% Load-Break and Load-Make Rated — Switches contacts under full load without arcing or damage, certified for service-entrance use
- Deionizing Arc Chutes — Specialized arc suppression confines and extinguishes arcs produced during load-break operations
- Clearly Visible Palm-Fitting Red Handle — Easy-to-identify ON/OFF position readable from a distance for safer operation
Technical Specifications
| Model | DH364UGK (Eaton Cutler-Hammer DH Series) |
| Amperage Rating | 200 A |
| Voltage Rating | 600V AC / 250V DC |
| Poles / Wires | 3 Pole / 3 Wire |
| Configuration | Single-Throw, Non-Fusible |
| Enclosure Type | NEMA 1 |
| Enclosure Material | Painted Steel |
| AIC Rating | 200 kA @ 600V |
| Horsepower Ratings | 50 hp @ 480/600V AC (1-phase); 125 hp @ 480V AC (3-phase); 150 hp @ 600V AC (3-phase); 40 hp @ 250V DC |
| Dimensions | 16″ W × 11.26″ D × 27.66″ H |
| Weight | Approximately 50 lbs |
| Certifications | NEMA KS-1, UL Listed, UL 98 |
| Country of Origin | United States |
Typical Applications
- Commercial and institutional building power distribution systems
- Service-entrance and main disconnect applications
- Industrial motor control and feeder circuits
- Maintenance disconnect and isolation points
- Heavy-duty commercial load switching where manual disconnection is required by code
Compatibility & Replacements
Compatible With
- Eaton / Cutler-Hammer electrical distribution systems
- Standard NEMA 1 indoor panelboard and switchboard installations
- UL-listed circuits rated for 600V AC and 250V DC operation
- Systems requiring 200 kA short-circuit capacity at 600V
Replaces / Drop-In Replacement For
The DH364UGK is part of the Eaton DH Series heavy-duty disconnect switch family, which includes various amperage ratings (30–1200A) and enclosure types (NEMA 1, 3R, 12, 4, 4X). For specific model interchangeability, verify with your system integrator or consult Eaton technical documentation to ensure electrical ratings and mounting configurations match your application.
Works With
- Eaton Cutler-Hammer control and power distribution equipment
- Standard industrial electrical cabinets and switchgear
- Lockout/Tagout (LOTO) safety procedures and equipment
- Code-compliant service-entrance and main-disconnect installations
