Overview
The Reliance ECSR90 (DG59-26) is a 90-ampere, 600VAC Class H fast-acting fuse designed for industrial circuit protection. This economy-class fuse delivers consistent and reliable performance in motor control circuits, switchboards, and distribution panels where fast response to overcurrent conditions is essential. The fuse’s design provides effective protection against electrical surges and overcurrent faults, helping prevent cascade failures in critical equipment.
Key Features
- 90A rating with 600VAC voltage capacity for industrial power distribution
- Fast-acting response minimizes fault duration and equipment damage
- Class H fuse type suitable for general-purpose industrial circuits
- Melamine body material for durability and heat resistance
- Nonindicating design for standard circuit protection applications
- UL Listed and CSA Certified for safety compliance
Technical Specifications
- Part Number: ECSR90 / DG59-26
- Current Rating: 90 Amperes
- Voltage Rating: 600VAC
- Fuse Class: Class H
- Speed: Fast-Acting
- Interrupting Rating: 10,000 Amps RMS symmetrical at 600VAC
- Body Style: Blade
- Body Material: Melamine
- Indicating Type: Nonindicating
- Dimensions: Approximately 1-5/16″ diameter × 7-7/8″ length
- Standards: UL-248-6, CSA Class 1421-01, CE marked
- Temperature Range: Standard industrial operating range
Typical Applications
The Reliance ECSR90 is ideal for use in:
- Motor control centers and motor starter circuits
- Industrial switchboards and distribution panels
- General-purpose industrial power circuits requiring fast overcurrent protection
- Equipment rated for Class H fuse protection at 600VAC
- Commercial and industrial facilities with standard circuit protection requirements
Compatibility & Replacements
Compatible With
- 600VAC power distribution systems
- Class H fuse holders and clips (standard blade cartridge style)
- Motor control centers using Class H protection
- Industrial switchboards and panel boards rated for 600VAC
- Standard fuse blocks designed for 1-5/16″ × 7-7/8″ cartridge fuses
Replaces / Drop-In Replacement For
The Reliance ECSR90 is a direct replacement for other Class H 90A 600VAC fuses with the same blade cartridge form factor. Verify compatibility with your system integrator before ordering to ensure proper fit and electrical ratings.
Works With
- Standard industrial fuse management systems
- Equipment designed for UL-248-6 Class H protection
- 600VAC three-phase and single-phase circuits
- Maintenance and preventive replacement programs
