Overview
The Cooper Bussmann MDA-10-R fuse is a time-delay ceramic tube fuse engineered for dependable circuit protection in industrial control panels, equipment, and electronic applications. This fuse delivers 10 A at 250 VAC with a 200/10000 A interrupt rating, and offers time-delay characteristics with a response time of 60 minutes at 135% rated current and 120 seconds at 200% rated current. The time-delay design prevents nuisance trips from harmless inrush currents while protecting against genuine faults.
Key Features
- Compact 3AB footprint (1/4 inch x 1-1/4 inch) with nickel-plated brass end caps and ceramic tube construction
- Complies with UL 248-14, CE, and CSA standards
- Suitable for use in holder or clip mounting styles
- Time-delay (slow-blow) characteristics ideal for equipment with transient startup currents
- Box of 50 units for cost-effective inventory management
Technical Specifications
The MDA-10-R delivers precise electrical performance across a range of operating conditions:
- Rated current: 10A
- Voltage rating: 250V AC
- Fuse type: Time delay (slow blow)
- Physical size: 6.3mm x 32mm (1/4″ x 1-1/4″)
- Interrupt capacity: 200 amp at 250 VAC; 10 kA at 125 VAC
- Connection: Ferrule end x ferrule end
- Operating temperature range: -55°C to +125°C (with proper derating)
- Series: MDA Series; UL Listed, meets standard 248-14
- RoHS compliant
Typical Applications
The MDA-10-R is ideal for:
- Industrial control panel circuits requiring time-delay protection
- Motor control and power conversion applications
- Electronic equipment and machinery with inductive loads
- Any 250V AC circuit rated up to 10 amps where slow-blow fuse characteristics are required
- Retrofit and replacement installations in existing equipment
Compatibility & Replacements
Compatible With
- 3AB footprint (6.3mm x 32mm) ceramic fuse holders
- Clip-style and cartridge-style fuse mounting blocks
- Industrial control systems and machinery designed for 250V AC operation
- Equipment manufactured by Eaton, Schneider Electric, ABB, and other major control vendors
Replaces / Drop-In Replacement For
- Previous Cooper Bussmann MDA-10-R units
- Other 10A 250V time-delay ceramic fuses with 3AB footprint
- Verify compatibility with your system integrator before ordering
Works With
- UL-listed and CE-marked industrial control equipment
- Motor starters, variable frequency drives, and soft-start controllers
- Power conditioning and semiconductor protection applications
- Any 250V AC circuit protection application requiring time-delay characteristics
