Approvals & Standards
- Mersen Self-Certification, UL Listed to Standard 248-10, File E2137
- CSA Certified to Standard C22.2, No. 248.10 IEC 269-2-1
- DC Tested to UL 248 limits (Mersen Self-Certified)
Key features & benefits
Amp-Trap A4BY fuses have been the industry's favorite when it comes to protecting service entrance equipment, feeder circuits, and circuit breakers. The A4BY is a 100percent rated device and may be applied at continuous currents up to its ampere rating. A 4-second minimum time delay at 500percent rating allows the A4BY to pass normal current surges and to coordinate with ground fault relays.
More specificationsApplications
- Mains
- Feeders
- Circuit Breakers
- Load centers
- Panelboards
- Switchboards
- Metering Centers
Documents & Resources
Datasheet
Compliance
Brochures
Product Specifications
Frequency (Hz)
50/60 Hz
Ampere range
200 to 6000 A
Fuse class
Class L
Speed/Characteristic
Time Delay
UL file number
File E2137
UL Category Code
JDDZ
CSA File number
Class 1422-02 Guide 012636_0
REACH Compliant
Yes
Max Operating Temp.
80 °C
Max Storage Temp.
80 °C
Min Storage Temp.
-25 °C
Harmonized System
853610