Protistor size 120 gr 750VDC (IEC)

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1 Protistor size 12 gr SEMICONDUCTOR PROTECTION FUSES SQUARE BODY HIGH-SPEED FUSE-LINKS DC PROTECTION FEATURES & BENEFITS Multiple body sizes and terminals or blades combination Very low I²t Extremely fast acting Eliminate all overloads Excellent cycling capability APPLICATIONS Mersen DC offers provide a very high performant protection for railway power and auxiliary circuits. Mersen DC Semiconductor fuse-links were developed to provide improved performance required by today s new DC equipment. These fuse-links are typically operated at more elevated temperature than other fuse type, have lower I²t to minimize damage to protected components on short circuits, lower watts loss and longer life. TECHNICAL DATA OVERVIEW Ampere Range (A) Speed/Characteristic A gr Product Size 12 Package 1 Voltage DC (IEC) 7 VDC Protection of inverters Protection of motor drives Protection of UPS systems Railway power and auxiliary circuits 7VDC or less equipments STANDARDS EU conformity REACH compliant IEC Compliance EP.MERSEN.COM 1

2 PRODUCT RANGE Size 12 gr 7VDC type EF, blade contacts with striker Catalog Item voltage DC (IEC) current In Pre-arcing I²t breaking capacity DC Max. IP=In Max. IP=1In Power dissipation at In Power dissipation at.8 In Weight D12GC75VEF Y V A.665 ka²s ka 8.5 ka²s 42.5 ka²s 8.1 W 4.4 W.72 kg D12GC75V63EF R V 63 A ka²s ka 15 ka²s 75.5 ka²s 1.4 W 5.7 W.72 kg D12GC75V8EF Q V 8 A ka²s ka 24.5 ka²s 125 ka²s 13.4 W 7.3 W.72 kg D12GC75VEF P V A 3.1 ka²s ka 4 ka²s 2 ka²s 16.7 W 9.1 W.72 kg D12GC75V125EF R V 125 A ka²s ka 62.5 ka²s 315 ka²s 21 W 11.5 W.72 kg D12GC75V16EF N V 16 A 7.49 ka²s ka ka²s 485 ka²s 27 W 15 W.72 kg Size 12 gr 7VDC type TTF, threads terminals with striker D12GC75VTF Catalog Item voltage DC (IEC) current In Pre-arcing I²t breaking capacity DC Max. IP=In Max. IP=1In Power dissipation at In Power dissipation at.8 In Weight D12GC75VTF B V A.665 ka²s ka 8.5 ka²s 42.5 ka²s 8.1 W 4.4 W.65 kg D12GC75V63TF Q824 7 V 63 A ka²s ka 15 ka²s 75.5 ka²s 1.4 W 5.7 W.65 kg D12GC75V8TF Z V 8 A ka²s ka 24.5 ka²s 125 ka²s 13.4 W 7.3 W.65 kg D12GC75VTF R V A 3.1 ka²s ka 4 ka²s 2 ka²s 16.7 W 9.1 W.65 kg D12GC75V125TF P V 125 A ka²s ka 62.5 ka²s 315 ka²s 21 W 11.5 W.65 kg D12GC75V16TF R V 16 A 7.49 ka²s ka ka²s 485 ka²s 27 W 15 W.65 kg EP.MERSEN.COM 2

3 TIME CURRENT CHARACTERISTIC CURVES Pre-arcing time (s) a = 13 A2 =.6 B1 = 1.25 B2 =.6 Cf3 =.8 2 A 63 A A A A A RMS value of pre-arcing/melting current (A) +- 8% 2 3 EP.MERSEN.COM 3

4 L/R TIME CONSTANT VS DC VOLTAGE CAPABILITY L/R time constant (ms) Maximum testing capability DC voltage capability (V) POWER DISSIPATION Correction factor for power dissipation 1,8,6,4, % of rated current EP.MERSEN.COM 4

5 PEAK ARC VOLTAGE 24 Peak arc voltage (V) L/R = ms L/R = 4 ms Applied DC voltage (V) EP.MERSEN.COM 5

6 DIMENSIONS Size 12 gr blade contacts type EF with MC2R 3E 82.5 with MCR 3E 67.5 with MC 3E = 39 ±.8 = 28 4 = 41 ±.8 = Striker is visible after fuse link has operated Indicator lever visible after operation of fuse 11 6 Microswitch Dimensions in mm EP.MERSEN.COM 6

7 DIMENSIONS Size 12 gr threads terminals type TTF Indicator lever visible after operation of fuse Striker is visible after fuse link has operated 9 41 ± ± with MC2R 3E 82.5 with MCR 3E 67.5 with MC 3E 4 Ø 5 depth ±.8 Ø 26 M 8 Microswitch +1 depth 6 Dimensions in mm +1 depth 6 M 8 Ø 26 EP.MERSEN.COM 7