... 400V, 500V. 5) 3-Position: L1-L2, L1-L3, L2-L3(OFF Position is available on request).6) 3 ... 200V 150/250V, 250/400V 300/500V.7) 6-Position: L1-L2, L1-L3, L2-L3, L1-N ... , L2-N, L3-N(OFF Position is available on request).4. Mounting: SF series is ... flush mounting with bracket. ......More detailed products information or have further enquiry, welcome to contact us. Voltmeter with Selector Switch