EATON BUSSMANN ACH-2

® Bussmann Aircraft Limiter ACH Fast-Acting Dimensional Data All other tolerances (± 0.005) in (± 0.13) mm A D BUSS 30 C Catalog Symbol: ACH ACH Fast-Acting B Ampere Rating: 1 to 60 Amperes Voltage Rating: 208 Volts AC 125 Volts DC Interrupting Rating: 6000A @ 120 VAC 0.98" 4200A @ 208 VAC (25.0mm) .425" 6000A @ 125 VDC (10.8mm) At sea level to 6000 ft. Test specification - carry 200% rated current for 5 minutes, open at 240% within 5 minutes. 0.19" (4.76mm) Buss Aircraft Fuses For Military Use Mechanical Indicating - Limiter type Qualified to MIL-F-5372C Military Type Buss Cat. Military Type Buss Cat. • ACH limiters are designed to meet the very rigorous require- Designation Symbol Designation Symbol ments of high speed, high performance aircraft. MS28938-02 ACH2 MS28938-25 ACH25 • Isolate faults or grounds in aircraft electric systems of MS28938-03 ACH3 MS28937-30 ACH30 120/208 volts 400 cycles AC or 125 volts DC. MS28937-05 ACH5 MS28938-35 ACH35 • ACH limiters give visual indication when open by a spring- MS28937-10 ACH10 MS28937-40 ACH40 activated pin that extends from the limiter body. MS28938-15 ACH15 MS28937-50 ACH50 • The knife blade terminals on ACH limiters are silver-plated. MS28937-20 ACH20 MS28937-60 ACH60 • Limiters are made with a silicone body that assures reliable performance under severe conditions. Symbol Amperes A B C D • Designed to withstand exposure to moisture, fungus, salt ACH 2, 3, 5, 10, 15, 1.97• 0.06• 0.48• 1.33• spray, sand and dust, and mechanical vibration and shock. 20, 25 or 30 (50.0mm) (1.59mm) (12.3mm) (33.8mm) 2.22• 0.09• 0.55• 1.45• ACH 35, 40, 50 or 60 (56.39mm) (2.27mm) (13.97mm) (36.83mm) Form No. ACH Page 1 of 2 12-17-98 BIF Doc #1041 SB98107 Rev. A ® Bussmann Aircraft Limiter ACH Fast-Acting Time-Current Characteristic Curves–Average Melt AMPERE RATING 100 Fuseblocks 10 • All metal parts silver-plated. • Clips are beryllium copper. • The blocks have molded melamine base and are qualified to MIL-F-5373C. 1 to 30 Amp 35 to 60 Amp 1 Catalog Dimension of Catalog Dimension of Number base, inches Number base, inches 3887 (1-pole) 0.688• ¯ 3.125• 3889 (1-pole) 0.844• ¯ 3.375• 3888 (2-pole) 1.188• ¯ 3.125• 3890 (2-pole) 1.594• ¯ 3.375• 3967 (3-pole) 1.625• ¯ 3.125• 3968 (3-pole) 2.25• ¯ 3.375• .1 .01 CURRENT IN AMPERES The only controlled copy of this BIF document is the electronic read-only version located on the Bussmann Network Drive. All other copies of this document are by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Bussmann reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Bussmann also reserves the right to change or update, without notice, any technical information con- tained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications. Form No. ACH Page 2 of 2 12-17-98 BIF Doc #1041 SB98107 Rev. A TIME IN SECONDS 4 10 10 20 30 40 100 50 60 1,000 2,000