ABB电涌保护器单极OVR T1 25-255-7OVR T1 25-255OVR T1 25-440-50OVR T1 50 NOVR T1 100 N单极+中性线OVR T1 1N-25-255OVR T1 1N-25-255 TS三极OVR T1 3L-25-255 TS三极+中性线 OVR T1 3N-25-255-7OVR T1 3N-25-255OVR T1 3N-25-255 TS四极OVR T1 4L-25-255 TSOVR Type 1+2 电涌保护器型号单极OVR T1+2 15-255-7OVR T1+2 25-255 TS三极+中性线 OVR T1+2 3N-15-255-7OVR Type 2 电涌保护器 - 固定式型号单极OVR 15-275OVR 15-440OVR 40-275OVR 40-440OVR 40-440sOVR 65-275sOVR 65-440sOVR 65-660s单极+中性线OVR 1N-10-275OVR 1N-15-275OVR 1N-40-275三极+中性线 OVR 3N-10-275OVR 3N-15-275OVR 3N-40-275OVR Type2 电涌保护器 - 插拔式型号双极OVR 2-15-75s P TSOVR 2-15-75 P TSOVR 2-15-75 P三极+中性线 OVR 3N-40-385 P TSOVR BT2 Type2 电涌保护器 - 插拔式型号单极OVR BT2 15-320 POVR BT2 15-440 POVR BT2 40-320 POVR BT2 40-440 POVR BT2 70-320s POVR BT2 70-440s POVR BT2 100-440s P TSOVR BT2 100