MERSEN A4BQ800 L TD FUSE FUSE 600V 800A A4BQ
Product Overview
Amp-Trap® 2000 A4BQ fuses are 20% more current limiting than any other class L fuse on the market. When correctly coordinated, they bring a superior level of protection to service entrance equipment. Downstream circuit components have maximum protection against short circuit let-thru current. A4BQ's built-in 4 s time delay characteristic (at 500% of rated current) accommodates harmless inrush currents with no nuisance opening.
- Attributes
- Documents
- Application
- Item Features
- Standards
BrandMersen
Amperage Rating800 A
Body Size2-1/2 in Dia x 8-5/8 in L
Body TypeCylindrical
ClassL
Country of OriginMX
ElementDual
Indicating/Non-IndicatingNon-Indicating
Interrupt Rating200 kA
Manufacturer NameMERSEN
MaterialFiberglass
Mounting TypeBolted-On
Rejection/Non-RejectionRejection
Response Time4 s at 500%
SeriesA4BQ
Terminal TypeBlade
TypeCurrent Limiting Low Voltage North American Time Delay
Voltage Rating600 VAC
Other
Mains, Feeders, Large Motors, Lighting, Heating and General Loads, Circuit Breaker Back-Up, UPS and Battery Circuits Applications
- Fastest operation under short circuit conditions - let-thru currents are typically 20% lower, with a corresponding let-thru energy (clearing I2t) up to 40% lower than the next fastest class L fuse
- Time delay for high inrush loads such as motors and transformers, without nuisance opening
- 300 kA interrupting rating, self certified (UL witnessed)
- Most current limiting for lowest peak let-thru current, even at fault currents up to 300 kA
- Pure silver links ensure lowest let-thru current and longer fuse life
- Easy 2-to-1 selectivity for prevention of nuisance shutdowns and "blackouts"
- Rejection style design prevents replacement errors (when used with recommended fuse blocks)
- High visibility orange label gives instant recognition
- Reduced inventory because A4BQ can replace all older types of class L fuses now in service
- Metal embossed date and catalog number for traceability and lasting identification
- Fiberglass body provides dimensional stability in harsh industrial settings
- High grade silica filler ensures fast arc quenching
- Silver plated copper contact
CSA C22.2 No. 248.10|DC Listed|RoHS Compliant|UL 248|UL 248-10 File No. E2137