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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 specifications

Applications

  • Mains
  • Feeders
  • Circuit Breakers
  • Load centers
  • Panelboards
  • Switchboards
  • Metering Centers

Product Specifications

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  

Frequency (Hz)

50/60   Hz

References in this serie  (51)

Item number - Catalog No.

Ampere rating

Fuse size

Total Clearing I2t

Indication system

Product weight

A4BY1000

1000   A

-

-

-

2.0412   kg

A4BY1000-TI

1000   A

-

-

Yes  

2.0412   kg

A4BY1100

1100   A

-

-

-

2.0412   kg

A4BY1200

1200   A

-

-

-

2.0412   kg

A4BY1200-TI

1200   A

-

-

Yes  

2.0412   kg