Overview
The Econ ECS-4 600VAC 4A Class K-5 fuse is a time delay dual-element fuse designed for industrial and commercial circuit protection applications. This 4-amp capacity unit operates at 600VAC and meets Class K-5 fuse standards, making it suitable for general-purpose protection in motor circuits, transformers, and industrial equipment where momentary inrush currents are common.
Key Features
- Dual-element time delay design minimizes nuisance trips from brief inrush currents
- 600VAC rated voltage suitable for standard industrial panels and switchgear
- 4 amp current rating for appropriately sized load protection
- Class K-5 classification ensures reliable arc containment and safety
- Compact form factor fits standard fuse holders
- Meets industry standards for electrical equipment protection
Technical Specifications
| Voltage Rating | 600VAC |
| Current Rating | 4 Amp |
| Fuse Class | K-5 |
| Type | Time Delay, Dual Element |
| Manufacturer | Econ/Economy |
| Part Number | ECS-4 |
| Temperature Rating | Standard Industrial |
| Application | All-Purpose Circuit Protection |
Typical Applications
- Motor circuit protection in industrial machinery
- Transformer secondary winding protection
- General panel board protection where time delay is needed
- Equipment with inrush current demands (compressors, pumps)
- Commercial HVAC and refrigeration systems
- Industrial distribution systems requiring coordinated protection
Compatibility & Replacements
Compatible With
- Standard 600VAC industrial panelboards
- Motor control centers and switchgear rated for K-5 fuses
- Equipment designed for dual-element time delay protection
- Electrical systems requiring 4 amp circuit protection
- Standard R, K-5, and RK-5 fuse holders rated 600VAC
Replaces / Drop-In Replacement For
- Other Econ ECS-4 fuses
- Compatible Class K-5 dual-element 4A 600VAC fuses from other manufacturers
Works With
- Industrial panelboards and distribution equipment
- Motor starters and control circuits
- Standard fuse holders accepting K-5 class fuses
- 600VAC electrical systems in compliance with NEC standards

