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China Metal-Oxide Surge Arrester Suppliers | High-Quality Factory Products for Over-Voltage Protection

Overview
The metal-oxide surge arrester is a state-of-the-art device designed to protect against over-voltage, essential for insulation coordination in the power industry. As a leading product among China suppliers and factories, it offers numerous benefits including rapid response time, flat Volt-ampere characteristics, low residual voltage, and a high discharge current capacity. Its stable electrical performance, extended lifecycle, and simple structure make it indispensable in power generation, transformation, and distribution systems. This surge arrester effectively safeguards the insulation of power equipment, ensuring reliability and longevity against over-voltage threats.

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    Product Details

    General
    Polymer-housed metal-oxide surge arrester is the scientific achievement that combines the advantages of organic insulation material and traditional porcelain-clad MOA technique. It has excellent insulation performance, high dialectical strength, anti-leaking, anti-electric corrosion, heat-resisting, cold-resisting, anti-aging, explosion-proof, and good chemical stability, hydrophobic property, and nice sealing. It is designed and manufactured strictly following the standard of IEC and GB, and achieves advantage against the competitive international products.
    Normal Service conditions
    • ✓ a. For indoors and outdoors;
    • ✓ b. Ambient air temperature within the range of -40℃~+40℃;
    • ✓ c. Altitude not exceeding 2600m;
    • ✓ d. Frequency for A.C. power supply not less than 48Hz and not exceeding 62Hz;
    • ✓ e. Power Frequency voltage applied continuously between the terminals of the arrester not exceeding its continuous operating voltage;
    • ✓ f. Earthquake intensity: 8 degree and below;
    • ✓ g. Maximal wind velocity not exceeding 35m/s.
    ※ Please indicate in the contract, at exceptionally movement condition.
    Description of type
    According to the JB/T 8459-2011《Designation for surge arrester products》, the type of MOA shows as below:
    product description01
    product description02
    Technical parameters
    Gapless MOA for distribution
    Technical parameters
    Product type    		 Nominal voltage of system Rated voltage Continuous operation voltage Reference voltage at D.C.1mA k V . D C ≮ Nominal discharge current kA .peak Lightning impulse Steeping impulse Switching impulse Parachute diameter Φ mm Height H mm Fig. No
    Residual voltage kV.peak ≯
    kV.rms
    YH5WS-5/15 3 5 4.0 7.5 5 15.0 17.3 12.8 76 200 1
    YH5WS-10/30 6 10 8.0 15.0 5 30.0 34.6 25.6 76 200 1
    YH5WS-12/35.8 10 12 9.6 18.0 5 35.8 41.2 30.6 76 255 1
    YH5WS-15/45.6 10 15 12.0 23.0 5 45.6 52.5 39.0 76 255 1
    YH5WS-17/50 10 17 13.6 25.0 5 50.0 57.5 42.5 76 255 1
    Gapless MOA for power station
    Technical parameters
    Product type    		 Nominal voltage of system Rated voltage Continuous operation voltage Reference voltage at D.C.1mA k V . D C ≮ Nominal discharge current kA .peak Lightning impulse Steeping impulse Switching impulse Parachute diameter Φ mm Height H mm Fig. No
    Residual voltage kV.peak ≯
    kV.rms
    YH5WZ-5/13.5 3 5 4.0 7.2 5 13.5 15.5 11.5 82 200 1
    YH5WZ-10/27 6 10 8.0 14.4 5 27.0 31.0 23.0 82 200 1
    YH5WZ-12/32.4 10 12 9.6 17.4 5 32.4 37.2 27.6 82 255 1
    YH5WZ-15/40.5 10 15 12.0 21.8 5 40.5 46.5 34.5 82 255 1
    YH5WZ-17/45 10 17 13.6 24.0 5 45.0 51.8 38.3 82 255 1
    Y5WZ-26/66 20 26 20.8 37.0 5 66.0 76.0 56.0 232 995 5
    YH5WZ-26/66 114 345 4
    Y5WZ-32/85 20 32 25.6 47.0 5 85.0 95.0 75.0 232 995 5
    YH5WZ-32/85 114 405 4
    Y5WZ-51/134 35 51 40.8 73.0 5 134.0 154.0 114.0 232 995 5
    YH5WZ-51/134 114 525 4
    Y5WZ-84/221 66 84 67.2 121 5 221 254 188 252 1200 6
    YH5WZ-84/221 195 1296 8
    Y5WZ-90/235 66 90 72.5 130 5 235 270 201 252 1200 6
    YH5WZ-90/235 195 1296 8
    Y10WZ-90/235 66 90 72.5 130 10 235 264 201 252 1200 6
    YH10WZ-90/235 195 1296 8
    Y5WZ-96/250 110 96 75 140 5 250 288 213 270 1620 7
    YH5WZ-96/250 195 1296 8
    Y10WZ-96/250 110 96 75 140 10 250 280 213 270 1620 7
    YH10WZ-96/250 195 1296 8
    Gapless MOA for power station (Continued)
    Technical parameters
    Product type    		 Nominal voltage of system Rated voltage Continuous operation voltage Reference voltage at D.C.1mA k V . D C ≮ Nominal discharge current kA .peak Lightning impulse Steeping impulse Switching impulse Parachute diameter Φ mm Height H mm Fig. No
    Residual voltage kV.peak ≯
    kV.rms
    Y5WZ-100/260 110 100 78 145 5 260 299 221 270 1620 7
    YH5WZ-100/260 195 1296 8
    Y10WZ-100/260 110 100 78 145 10 260 291 221 270 1620 7
    YH10WZ-100/260 195 1296 8
    Y5WZ-102/266 110 102 79.6 148 5 266 305 226 270 1620 7
    YH5WZ-102/266 195 1296 8
    Y10WZ-102/266 110 102 79.6 148 10 266 297 226 270 1620 7
    YH10WZ-102/266 195 1296 8
    Y5WZ-108/281 110 108 84 157 5 281 323 239 270 1620 7
    YH5WZ-108/281 195 1296 8
    Y10WZ-108/281 110 108 84 157 10 281 315 239 270 1620 7
    YH10WZ-108/281 195 1296 8
    Y10WZ-192/500 220 192 150 280 10 500 560 426 278 2880 9
    YH10WZ-192/500 216 2635 10
    Y10WZ-200/520 220 200 156 290 10 520 582 442 278 2880 9
    YH10WZ-200/520 216 2635 10
    Y10WZ-204/532 220 204 159 296 10 532 594 452 278 2880 9
    YH10WZ-204/532 216 2635 10
    Y10WZ-216/562 220 216 168.5 314 10 562 630 478 278 2880 9
    YH10WZ-216/562 216 2635 10
    Y10WZ-288/698 330 288 219 408 10 698 782 593 298 5100 11
    YH10WZ-288/698 377 3850 12
    Y10WZ-300/727 330 300 228 425 10 727 814 618 298 5100 11
    YH10WZ-300/727 377 3850 12
    Y10WZ-306/742 330 306 233 433 10 742 831 630 298 5100 11
    YH10WZ-306/742 377 3850 12
    Y10WZ-312/760 330 312 237 442 10 760 847 643 298 5100 11
    YH10WZ-312/760 377 3850 12
    Y10WZ-324/789 330 324 246 459 10 789 880 668 298 5100 11
    YH10WZ-324/789 377 3850 12
    Y20WZ-420/1046 500 420 318 565 20 1046 1170 858 418 6240 11
    YH20WZ-420/1046 377 5850 12
    Y20WZ-444/1106 500 444 324 597 20 1106 1238 957 418 6240 11
    YH20WZ-444/1106 377 5850 12
    Y20WZ-468/1166 500 468 330 630 20 1166 1306 630 418 6240 11
    YH20WZ-468/1166 377 5850 12
    Gapless MOA for shunt compensating capacitor
    Technical parameters
    Product type    		 Nominal voltage of system Rated voltage Continuous operation voltage Reference voltage at D.C.1mA k V . D C ≮ Nominal discharge current kA .peak Lightning impulse Switching impulse Parachute diameter Φ mm Height H mm Fig. No
    Residual voltage kV.peak ≯
    kV.rms
    YH5WR-5/13.5 3 5 4.0 7.2 5 13.5 10.5 88 200 1
    YH5WR-10/27 6 10 8.0 14.4 5 27.0 21.0 88 200 1
    YH5WR-12/32.4 10 12 9.6 17.4 5 32.4 25.2 88 255 1
    YH5WR-15/40.5 10 15 12.0 21.8 5 40.5 31.5 88 255 1
    YH5WR-17/46 10 17 13.6 24.0 5 46.0 35.0 88 255 1
    Y5WR-26/66 20 26 20.8 37.0 5 66.0 53.0 232 995 5
    YH5WR-26/66 120 345 4
    Y5WR-32/85 20 32 25.6 47.0 5 85.0 68.0 232 995 5
    YH5WR-32/85 120 405 4
    Y5WR-51/134 35 51 40.8 73.0 5 134.0 105.0 232 995 5
    YH5WR-51/134 120 525 4
    Y5WR-84/221 66 84 67.2 121 5 221 176 252 1200 6
    YH5WR-84/221 195 1296 8
    Y5WR-90/236 66 90 72.5 130 5 236 190 252 1200 6
    YH5WR-90/236 195 1296 8
    Y10WR-105/265 66 105 84 152 10 265 225 252 1200 6
    YH10WR-105/265 195 1296 8
    Y10WR-108/281 110 108 84 157 10 281 239 270 1620 7
    YH10WR-108/28 195 1296 8
    Y10WR-174/372 110 174 139 240 10 372 336 351 2135 25
    YH10WR-174/372 377 2200 26
    Arrester for low voltage system
    Technical parameters
    Product type    		 Nominal voltage of system Rated voltage Continuous operation voltage Reference voltage at D.C.1mA k V . D C ≮ Nominal discharge current kA .peak Residual voltage at Lightning current impulse kV.peak Parachute diameter Φ mm Height H mm Fig. No
    kV.rms
    YH1.5W-0.28/1.3 0.22 0.28 0.24 0.6 1.5 1.3 35 85 2
    YH1.5W-0.5/2.6 0.38 0.5 0.42 1.2 1.5 2.6 35 85 2
    Gapless MOA for motor and generators
    Technical parameters
    Product type    		 Nominal voltage of system Rated voltage Continuous operation voltage Reference voltage at D.C.1mA k V . D C ≮ Nominal discharge current kA .peak Lightning impulse Steeping impulse Switching impulse Parachute diameter Φ mm Height H mm Fig. No
    Residual voltage kV.peak ≯
    kV.rms
    YH2.5WD-4/9.5 3.15 4 3.2 5.7 2.5 9.5 10.7 7.6 88 200 1
    YH2.5WD-8/18.7 6.3 8 6.3 11.2 2.5 18.7 21.0 15.0 88 200 1
    YH2.5WD-13.5/31 10.5 13.5 10.5 18.6 2.5 31.0 34.7 25.0 88 255 1
    YH5WD-4/9.5 3.15 4 3.2 5.7 5 9.5 10.7 7.6 88 200 1
    YH5WD-8/18.7 6.3 8 6.3 11.2 5 18.7 21.0 15.0 88 200 1
    YH5WD-13.5/31 10.5 13.5 10.5 18.6 5 31.0 34.7 25.0 88 255 1
    YH5WD-17.5/40 13.8 17.5 13.8 24.4 5 40.0 44.8 32.0 88 255 1
    YH5WD-20/45 15.75 20 15.8 28.0 5 45.0 50.4 36.0 88 255 1
    YH5WD-23/51 18.0 23 18.0 31.9 5 51.0 57.2 40.8 88 310 1
    YH5WD-25/56.2 20.0 25 20.0 35.4 5 56.2 62.9 45.0 88 310 1
    ※Note：The arrester which nominal discharge current is 2.5kA used for protection of Motor.
    The arrester which nominal discharge current is 5kA used for protection of Generators.
    Gapless MOA with Polymer-housed for transmission lines
    Technical parameters
    Product type    		 Nominal voltage of system Rated voltage Continuous operation voltage Reference voltage at D.C.1mA k V . D C ≮ Nominal discharge current kA .peak Lightning impulse Steeping impulse Switching impulse Parachute diameter Φ mm Height H mm Fig. No
    Residual voltage kV.peak ≯
    kV.rms
    YH5WX-34/90 20 34 27.2 50.0 5 90.0 104.0 80.0 114 475 13
    YH5WX-51/134 35 51 40.8 73.0 5 134.0 154.0 114.0 114 595 13
    YH⁵WX-54/L49 35 54.0 43.2 77.0 5 142.0 163.0 121.0 114 595 13
    YH5WX-54/150 35 54.0 43.2 80.0 5 150.0 169.0 128.0 114 595 13
    YH5WX-96/250 66 96 75 140 5 250 288 213 195 1355 14
    YH5WX-96/275 66 96 75 154 5 275 316 234 195 1355 14
    YH5WX-108/281 110 108 84 157 5 281 323 239 195 1355 14
    YH5WX-108/300 110 108 84 173 5 309 348 263 195 1355 14
    YH1OWX-108/281 110 108 84 157 10 281 315 239 195 1355 14
    YH10WX-108/309 110 108 84 173 10 309 348 263 195 1355 14
    YH10WX-216/562 220 216 168 314 10 562 630 478 195 2685 15
    YH10WX-216/618 220 216 168.5 346 10 618 693 526 195 2685 15
    YH10WX-312/760 330 312 237 442 10 760 847 643 216 3530 16
    YH10WX-324/789 330 324 246 459 10 789 880 668 216 3530 16
    YH20WX-468/1166 500 468 330 630 20 1166 1306 630 377 5850 12
    Gapless MOA for electrical railway
    Technical parameters
    Product type    		 Nominal voltage of system Rated voltage Continuous operation voltage Reference voltage at D.C.1mA k V . D C ≮ Nominal discharge current kA .peak Lightning impulse Steeping impulse Switching impulse Parachute diameter Φ mm Height H mm Fig. No
    Residual voltage kV.peak ≯
    kV.rms
    Y5WT-42/105 27.5 42 31.5 58.0 5 105.0 118.0 89.0 232 995 5
    YH5WT-42/105 128 525 4
    Y5WT-42/110 27.5 42 31.5 60.0 5 110.0 127.0 94.0 232 995 5
    YH5WT-42/110 128 525 4
    Y5WT-42/120 27.5 42 34.0 65.0 5 120.0 138.0 98.0 232 995 5
    YH5WT-42/120 128 525 4
    Y5WT-84/240 55 84 68 130 5 240 276 196 252 1200 6
    YH5WT-84/240 195 1296 8
    Y5WT-100/260 110 100 73 145 5 260 291 221 270 1620 7
    YH5WT-100/260 195 1296 8
    Y5WT-100/275 110 100 73 150 5 275 316 234 270 1620 7
    YH5WT-100/275 195 1296 8
    Y10WT-100/290 110 100 73 158 10 290 325 247 270 1620 7
    YH10WT-100/290 195 1296 8
    Y10WT-100/295 110 100 73 160 10 295 330 251 270 1620 7
    YH10WT-100/295 195 1296 8
    Gapless MOA for electrical machinery neutral point
    Technical parameters
    Product type    		 Rated voltage of electrical machinery Rated voltage Continuous operation voltage Reference voltage at D.C.1mA k V . D C ≮ Nominal discharge current kA .peak Lightning impulse Switching impulse Parachute diameter Φ mm Height H mm Fig. No
    Residual voltage kV.peak ≯
    kV.rms
    YH1.5W-2.4/6 3.15 2.4 1.9 3.4 1.5 6.0 5.0 88 200 1
    YH1.5W-4.8/12 6.3 4.8 3.8 6.8 1.5 12.0 10.0 88 200 1
    YH1.5W-8/19 10.5 8 6.4 11.4 1.5 19.0 15.9 88 200 1
    YH1.5W-10.5/23 13.8 10.5 8.4 14.9 1.5 23.0 19.2 88 200 1
    YH1.5W-12/26 15.75 12 9.6 17.0 1.5 26.0 21.6 88 200 1
    YH1.5W-13.7/29.2 18.0 13.7 11.0 19.5 1.5 29.2 24.3 88 255 1
    YH1.5W-15.2/31.7 20.0 15.2 12.2 21.6 1.5 31.7 26.4 88 255 1
    MOA with parallel gaps for electrical machinery
    Technical parameters
    Product type    		 Rated voltage of electrical machinery Rated voltage Continuous operation voltage Reference voltage at D.C.1mA k V . D C ≮ Nominal discharge current kA .peak Residual voltage at Nominal discharge current kV.peak ≯ Parachute diameter Φ mm Height H mm Fig. No
    kV.rms
    YH0.5B-8/11 6.3 8 6.3 11.5 0.5 11.0 88 255 1
    YH0.5B-13.5/20 10.5 13.5 10.5 21.0 0.5 20.0 88 255 1
    Gapless MOA for transformer neutral point
    Technical parameters
    Product type    		 Nominal voltage of system Rated voltage Continuous operation voltage Reference voltage at D.C.1mA k V . D C ≮ Nominal discharge current kA .peak Lightning impulse Switching impulse Parachute diameter Φ mm Height H mm Fig. No
    Residual voltage kV.peak ≯
    kV.rms
    Y1.5W-30/98 35 30 24.0 61.0 1.5 98.0 88.0 232 995 5
    YH1.5W-30/98 120 525 4
    Y1.5W-60/144 110 60 48 85 1.5 144 135 232 1145 5
    YH1.5W-60/144 142 585 4
    Y1.5W-72/186 110 72 58 103 1.5 186 174 110 215 5
    YH1.5W-72/186 142 585 4
    Y1.5W-96/260 500 96 77 137 1.5 260 243 270 1620 7
    YH1.5W-96/260 195 1296 8
    Y1.5W-144/320 220 144 116 205 1.5 320 299 270 1620 7
    YH1.5W-144/320 195 1296 8
    Y1.5W-210/440 330 210 168 285 1.5 440 410 278 2880 9
    YH1.5W-210/440 216 2635 10
    MOA with series gap
    Technical parameters
    Product type    		 Rated voltage of electrical machinery Rated voltage Continuous operation voltage Power frequency discharge voltage kV.rms ≮ Discharge voltage at impulse 1.2/50μS kV.peak ≯ Nominal discharge current kA .peak Lightning impulse Steeping impulse Parachute diameter Φ mm Height H mm Fig. No
    Residual voltage kV.peak ≯
    kV.rms
    YH5CS-3.8/15 3 3.8 3.0 9.0 21.0 5 15.0 17.2 82 200 1
    YH5CS-7.6/27 6 7.6 6.1 16.0 35.0 5 27.0 31.0 82 200 1
    YH5CS-12.7/45 10 12.7 10.2 26.0 50.0 5 45.0 51.8 82 255 1
    YH5CZ-3.8/12 3 3.8 3.0 9.0 20.0 5 12.0 13.8 82 200 1
    YH5CZ-7.6/24 6 7.6 6.1 16.0 30.0 5 24.0 27.6 82 200 1
    YH5CZ-12.7/41 10 12.7 12.7 26.0 45.0 5 41.0 47.2 82 255 1
    YH5CZ-42/124 35 42 33.6 80.0 134.0 5 124.0 142.6 114 585 4
    YH2.5CD-3.8/9.5 3.15 3.8 3.0 7.5 9.5 2.5 9.5 10.7 88 200 1
    YH2.5CD-7.6/18.7 6.3 7.6 6.1 15.0 18.7 2.5 18.7 21.0 88 200 1
    YH2.5CD-12.7/3 10.5 12.7 10.2 25.0 31.0 2.5 31.0 34.7 88 255 1
    YH5CD-3.8/9.5 3.15 3.8 3.0 7.5 9.5 5 9.5 10.7 88 200 1
    YH5CD-7.6/18.7 6.3 7.6 6.1 15.0 18.7 5 18.7 21.0 88 200 1
    YH5CD-12.7/31 10.5 12.7 10.2 25.0 31.0 5 31.0 34.7 88 255 1
    ※Note：The arrester which nominal discharge current is 2.5kA used for protection of Motor.
    The arrester which nominal discharge current is 5kA used for protection of Generators.
    Polymer-housed MOA with gaps for transmission lines
    Technical parameters
    Product type    		 Nominal voltage of system Rated voltage Reference voltage at D.C.1mA of units k V . D C ≮ Power frequency withstand voltage kV.rms ≯ 50% Lightning impulse sparkover voltage kV.peak ≯ Nominal discharge current kA .peak Lightning impulse Steeping impulse Parachute diameter Φ mm Height H mm Fig. No
    Residual voltage kV.peak ≯
    kV.rms
    YH5CX-13/40 10 13 20.0 26 100 5 40.0 46.0 76 185 17
    YH5CX-42/120 35 42 60.0 70 240 5 120.0 138.0 120 545 18
    120 960 19
    YH5CX-75/218 66 75 108 117 400 5 218 246 195 910 20
    195 1600 21
    YH5CX-90/260 110 90 130 170 525 5 260 292 195 975 20
    195 2035 21
    YH10CX-90/260 110 90 130 170 525 10 260 292 195 975 20
    195 2035 21
    YH10CX-96/280 110 96 140 170 525 10 280 314 195 975 20
    195 2035 21
    YH10CX-102/296 110 102 148 170 525 10 296 332 195 975 20
    195 2035 21
    YH10CX-180/520 220 180 260 340 900 10 520 584 195 1655 20
    195 3450 21
    YH10CX-192/560 220 192 280 340 900 10 560 628 195 1655 20
    195 3450 21
    YH10CX-204/592 220 204 296 340 900 10 592 664 195 1655 20
    195 3450 21
    YH10CX-288/775 330 288 408a 460 1300 10 775 868 195 2450 22
    YH20CX-396/1050 500 396 561 510 1760 20 1050 1171 216 3600 23
    ※Note: Reference voltage at D.C. 2mA.
    The structure and installation dimensional drawing
    product description03
    product description04
    product description05
    product description06
    product description07
    product description08
    product description09
    product description10
    product description11
    product description12
    Frequently Asked Questions
    What are the main advantages of a polymer-housed metal-oxide surge arrester (MOA)?
    It combines the benefits of organic insulation materials and traditional porcelain-clad MOA techniques. Key advantages include excellent insulation, high dielectric strength, anti-leaking, anti-electric corrosion, heat/cold resistance, anti-aging, explosion-proof properties, hydrophobic performance, and superior sealing.
    What ambient temperature range is suitable for normal operation?
    The normal service conditions require the ambient air temperature to remain within the range of -40℃ to +40℃.
    What is the maximum altitude limit for these surge arresters under normal conditions?
    Under normal service conditions, the altitude should not exceed 2600 meters. For exceptionally higher altitudes or special movement conditions, requirements must be indicated in the contract.
    How do I choose between a 2.5kA and a 5kA nominal discharge current arrester?
    According to the technical standards, arresters with a nominal discharge current of 2.5kA are specifically designed for the protection of motors, while arresters with a nominal discharge current of 5kA are used for the protection of generators.
    Which design standards are followed during manufacturing?
    The polymer-housed metal-oxide surge arresters are designed and manufactured in strict compliance with international IEC and national GB standards, ensuring competitive performance in the global market.
    What is the maximum wind velocity and earthquake intensity these arresters can withstand?
    They are designed to withstand a maximal wind velocity of up to 35 m/s and are suitable for installation in regions with an earthquake intensity of 8 degrees and below.

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