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品牌MICROTHERM型号B12温控范围70~155（℃）工作电流6.3（A）工作电压250（V）产品认证UL Technical data Standard wire (length 100 ± 10 mm, stripped 6 ± 1 mm) control type ratings B12A / E B12B / G version normally closed normally open rated current at 250 V 50/60 Hz ( power factor 0.95 / 0.6 ) 6.3 A / 4.0 A 10.0 A / 6.0 A 13.0 A / 2.1 A 5.0 A / 1.6 A switching cycles 10,000 5,000 1,000 5,000 max. current at 250 V 50/60 Hz ( power factor 0.95 ) 30.0 A switching cycles under max. current 100 temperature rating Ta ( steps in 5 K ) 70 °C ... 160 °C tolerances Standard: ± 5 K feature of automatic action 1.B.M, 2.B, 1.C, 3.C 1.B, 3.C contact resistance ( incl. wire of 100 mm ) < 50 m hysteresis 30 K ± 15 K dielectric strength ( standard insulation ) 2 kV shock- / vibration testing ( similar to EN 50155 ) 400 m/s2 sine half wave / 100 m/s2 5 Hz ... 2.000 Hz sine resistances to impregnation tight against ordinary resins and lacquers degrees of protection provided by enclosures ( EN 60529 ) IP00 suitable for use in protection category I, II approvals VDE / ENEC EN 60730-1 / -2-2 / -2-3 1) /-2-9 UL UL 2111 / UL 873 2) CSA C22.2 No. 77 / C22.2 No. 24 2)