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USA > Products > Fuses, Fusegear, and Fuse Systems > Low Voltage UL/CSA Fuses > Class L > A4BQ - Class L - Time-Delay

Low Voltage UL/CSA Fuses

Class L

A4BQ - Class L - Time-Delay

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-second time-delay characteristic (at 500% of rated current) accommodates harmless inrush currents with no nuisance opening.

A4BQ Datasheet (110 KB)
 

FEATURES

  • 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
  • 300kA interrupting rating, self-certified (UL witnessed)
  • Most current-limiting for lowest peak let-thru current; even at fault currents up to 300kA
  • 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
  • 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 arcquenching
 

PRODUCT DETAILS

  • Volts (VAC) 600 VAC
  • Volts (VDC) 500 VDC
  • Ampere Range (A) 100-6000 A
  • I.R. AC (kA) 200 kA
  • I.R DC (kA) 100 kA
  • IR Other (kA) 300kA 600VAC Self Certified (UL Witnessed)
  • Class Class L
  • Speed / Characteristic Time-Delay
  • Mounting Bolt On
  • Connection Terminal Type Blade
  • Body Style Cylindrical
    Rejection
  • Body Material GMG
  • Materials Contact Silver-Plated Copper
  • Standards UL Recognized to Standard 248-10, File E60314,
    UL Listed to Standard 248-10, File E2137
    DC listed to UL Standard 248
    CSA Certified to Standard C22.2, No. 248.10,
    UL Listed to Standard 248-10, File E2137
    CSA Certified to Standard C22.2, No. 248.10
  • Application Mains
    Feeders
    Large motors
    Lighting, heating & general loads
    Circuit breaker back-up
    UPS
    Battery Circuits
  • ROHS Compliant Consult Technical Services
  • Lead Free Consult Technical Services
  • CE conformity Consult Technical Services
  • UL File Card E2137 JDDZ.E2137
  • CSA File Card Class: 1422-02 File: 012636_0_000
 

Catalog-Reference

  • A4BQ100 - J215771
  • A4BQ1000 - P216282
  • A4BQ1200 - R216790
  • A4BQ1350 - G217310
  • A4BQ1400 - L217820
  • A4BQ150 - X218336
  • A4BQ1500 - J218853
  • A4BQ1600 - Y219372
  • A4BQ1800 - V219898
  • A4BQ1900 - D230325
  • A4BQ200 - L222581
  • A4BQ2000 - B223101
  • A4BQ250 - H200889
  • A4BQ2500 - V201429
  • A4BQ2501 - H230329
  • A4BQ300 - F201945
  • A4BQ3000 - F211168
  • A4BQ350 - Y211690
  • A4BQ3500 - E212202
  • A4BQ3800 - V212722
  • A4BQ400 - E213237
  • A4BQ4000 - W213735
  • A4BQ450 - D214248
  • A4BQ500 - F214756
  • A4BQ5000 - K215266
  • A4BQ600 - K215772
  • A4BQ6000 - Q216283
  • A4BQ601 - H217311
  • A4BQ650 - M217821
  • A4BQ700 - Y218337
  • A4BQ750 - K218854
  • A4BQ800 - Z219373
  • A4BQ900 - W219899
 

PERFORMANCE DATA

 

CAD & OUTLINE DRAWINGS

  • CAD Drawings

    • Drawing A4BQ(100-600) :   PDF (30 KB)
    • Drawing A4BQ(100-600)TA :   PDF (31 KB)
    • Drawing A4BQ(1000-1200) :   PDF (38 KB) DXF (154 KB)
    • Drawing A4BQ(2501-3000)-TA :   PDF (40 KB)
    • Drawing A4BQ(3001-4000)-TA :   PDF (40 KB) DXF (762 KB)
    • Drawing A4BQ(601-800)-TA :   PDF (36 KB)
    • Drawing A4BQ1600 :   PDF (37 KB)
    • Drawing A4BQ2000 :   PDF (37 KB)
    • Drawing A4BQ2500 :   PDF (75 KB) DXF (2.2 MB)
    • Drawing A4BQ3000 :   PDF (38 KB)
    • Drawing A4BQ4000 :   PDF (39 KB)
    • Drawing A4BQ5000 :   PDF (37 KB)
    • Drawing A4BQ6000 :   PDF (38 KB)
    • Drawing A4BQ800 :   PDF (35 KB) DXF (146 KB)
    • Drawing A4BQ(601-800) :   STP (178 KB)
    • Drawing A4BQ(801-1200) :   STP (76 KB)
    • Drawing A4BQ1000 :   PDF (32 KB)
    • Drawing A4BQ(1201-1600) :   DXF (271 KB) STP (0.9 MB)
    • Drawing A4BQ(1600-2000) :   DXF (173 KB) STP (157 KB)
 

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