Най-често използван национален стандарт - стандарт постоянен феритен магнит SJ285-77
клас | Br | Звб | Hcj | BHmax | ||||
кг | тТ | КОе | кА / м | КОе | кА / м | KJ / m3 | MGOe | |
Y10T (= С1) | 2.00 / 2.18 | 200/218 | 1.57 / 1.82 | 125/145 | 2.64 / 3.14 | 210/250 | 6.5 / 8.0 | 0.8 / 1.0 |
Y25 | 3.60 / 3.70 | 360/370 | 1.70 / 1.88 | 135/150 | 1.76 / 2.14 | 140/170 | 22.5 / 25.3 | 2.8 / 3.2 |
Y30 (= С5) | 3.80 / 3.85 | 380/385 | 2.40 / 2.64 | 191/210 | 2.50 / 2.51 | 199/220 | 26,0 / 28 | 3.4 / 3.7 |
Y30BH | 3.80 / 3.90 | 380/390 | 2.80 / 2.95 | 223/235 | 2.90 / 3.08 | 231/245 | 27.0 / 30.0 | 3.4 / 3.7 |
Y33 | 4.10 / 4.20 | 410/420 | 2.77 / 2.95 | 220/235 | 2.83 / 3.01 | 225/240 | 31.5 / 33.0 | 4.0 / 4.2 |
У 35 | 4.00 / 4.10 | 400/410 | 2.20 / 2.45 | 175/195 | 2.26 / 2.51 | 180/200 | 30.0 / 32.0 | 3.8 / 4.0 |
С8 (= C8A) | 3.85 / 3.90 | 385/390 | 2.95 / 3.20 | 235/255 | 3.05 / 3.33 | 242/265 | 27.8 / 30.0 | 3.5 / 3.7 |
C10 | 4.00 / 4.10 | 400/410 | 3.62 / 3.77 | 288/300 | 3.51 / 3.60 | 280/287 | 30.4 / 31.9 | 3.8 / 4.0 |