Bussmann ® Square Body – Flush End Contact 1000-4000A 690V (IEC) Electrical Characteristics Size 4 n n n n n Rated Current RMSNorm. Cool. Rated Current RMSLiquid Cool. 1000 1250 1400 1600 2000 2500 3000 3500 †4000 1350 1700 1900 2200 2700 3400 4100 4700 †5400 Ordering Information Pre-arc Clearing at 660V Watts Loss Norm. Cool. 76000 145000 205000 305000 600000 1200000 2000000 3250000 4700000 505000 965000 1400000 2050000 3950000 7800000 13500000 22000000 †28000000 175 195 205 220 245 275 305 325 355 I2t (A2S) Watts Loss Liquid Cool. 315 355 375 405 445 495 555 585 640 -B/Visual Indicator -BKN/Type K Indicator for Micro -G/Visual Indicator -GKN/Type K Indicator for Micro 170M7058 170M7059 170M7060 170M7061 170M7062 170M7063 170M7064 170M7065 170M7066 170M7078 170M7079 170M7080 170M7081 170M7082 170M7083 170M7084 170M7085 170M7086 170M7098 170M7099 170M7100 170M7101 170M7102 170M7103 170M7104 170M7105 170M7106 170M7118 170M7119 170M7120 170M7121 170M7122 170M7123 170M7124 170M7125 170M7126 Interrupting rating 200kA (Estimated 300kA) RMS Symmetrical. Watts loss provided at rated current. Rated voltage (IEC) †600V Liquid Cool. = Liquid cooling. Temperature on the terminals not to exceed 60°C. Microswitch indicator ordered separately. 1-17-01 SB00233 Carton Carton Weight Qty. (kg) 1 kg = 2.2 lbs. 2 1.80 1 lb = 0.45 kg Form No. Page 1 of 2 BIF Doc #720020 Bussmann ® Square Body – Flush End Contact 1000-4000A 690V (IEC) Electrical Characteristics Total Clearing I2t The total clearing I2t at rated voltage and at power factor of 15% are given in the electrical characteristics. For other voltages, the clearing I2t is found by multiplying by correction factor, K , given as a function of applied working voltage, E g , (RMS). 1.5 Arc Voltage This curve gives the peak arc voltage, U L , which may appear across the fuse during its operation as a function of the applied working voltage, E g , (RMS) at a power factor of 15%. 0.5 0.4 1.4 1.2 103 9 8 7 6 0.3 5 1) K 1.0 Power Losses Watts loss at rated current is given in the electrical characteristics. The curve allows the calculation of the power losses at load currents lower than the rated current . The correction factor, K p , is given as a function of the RMS load current, Ib , in % of the rated current . 1.0 Kp 0.8 UL 0.6 0.5 0.4 0.3 0.2 4 0.2 Eg Eg 3 100 200 300 400 500 600 690 200 300 400 500 Ib 0.1 30 40 50 600 690 60 70 80 90 100% 1) Rated voltage 500V Dimensions Flush End Contact: Type 4B/-, 4BKN/-, 4G/-, 4GKN/Size 4B 4G F M10 10 deep ⁄Ω™∑ -13 UNC-2B 10 deep G 33 38 Dimension in mm. 1mm = 0.0394∑ 1∑ = 25.4mm 105 F Ø4 G 105 15 Ø56 67 53 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 contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications. 1-17-01 SB00233 Form No. Page 2 of 2 BIF Doc #720020

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