※单相SCR功率调整器型 号电流输 入 方 式负载电压SPR-202020A4~20mA/1~5VDC/3~32VDC/VR10K 220VACSPR-402040A4~20mA/1~5VDC/3~32VDC/VR10K 220VACSPR-602060A4~20mA/1~5VDC/3~32VDC/VR10K 220VACSPR-204020A4~20mA/1~5VDC/3~32VDC/VR10K 440VACSPR-404040A4~20mA/1~5VDC/3~32VDC/VR10K 440VACSPR-604060A4~20mA/1~5VDC/3~32VDC/VR10K 440VAC