JMB、DG、BZ系列照明变压器适应喻交流50/60Hz，电压500V以下的电路中，作为机床机械及其他设备的局部照明灯电源；

JMB、DG系列变压器是由BK系列变压器和防护外壳构成，外壳两侧有供输入输出电源接线有的接线柱，并有供接地用的接地螺钉，BZ照明变压器是有BK-50、BK-100控制变压器和LS3-2主令开关和保护外壳组成，在主令开关上装有熔断器，用以保护照明回路，电源从装有主令开关一端的防尘薄膜处引人，通过主令开关接通和分段照明灯。

JMB, DG, BZ series lighting transformer adapted to Yu AC 50/60Hz, voltage500V following electric circuit, as the machine tool machinery and other equipment of the local lighting power supply;

JMB, DG series transformer is composed of BK series transformer and protective casing, casing are both provided input / output power supply wiring some posts, and for grounding grounding screw, BZ lighting transformer are BK-50, BK-100 control transformer and LS3-2main switch and a protective shell, the master switch is arranged on the fuse, to protect the lighting circuit, power supply from a main switch at one end of the dustproof thin film is introduced, through the master switch is on and the sectional lamp.