德國DOLD公司E.DOLD& Sohne .KG積累了70多年生產大樓控制器和繼電器裝置的經驗。它是從一個小型生產機械傳動開關和時間裝置企業到現在生產高科技產品的大型企業。

DOLD創始人認識到質量的產品是市場需要這個重要性。為企業獻身多年的雇員積累了怎樣設計，怎樣生產的豐富經驗。

DOLD能夠生產對控制自動化和大樓工廠控制面板的創新產品。

德國DOLD全系列繼電器如：監控繼電器:測量繼電器,電壓繼電器,相序繼電器,電流繼電器,負載監控繼電器,絕緣監控器，安全急停模塊、監控器等等。型號舉例如下：

OA5672.11/208  DC80V 12800Ω 10A 250VAC Nr.0049115

OA5611.48/2500L1/61 DC85V 12100Ω 8A  250VAC Nr.0049076

OA5669.12/3095L1/61  DC12V 210Ω 8A 250V Nr.0052285

OA5602.18/2007L1/61 10A 24V 250V 570Ω  Nr.0057385

OA5602.50/2033L1/61 10A 24V 250V 570Ω  Nr.0041165

OA5602.50/2037L1/61 10A 24V 250V 570Ω  Nr.0057792

OA5603.57/2213L1/61 10A DC24V AC250V 460Ω Nr.0041602

OA5601.48/2123L1/61 10A DC24V AC250V 770Ω Nr.0040690

OW5669.12/698/61 DC10V DC10V 8A 250V  Nr.0045443

BA7924.21 AC230V 0.3-3S  Nr.0039705  BN5930.48 DC24V  Nr.0041438

BD5935.48/61 AC50/60HZ 230V Nr.0048717

BN3081.63/61  AC50/60HZ 230V Nr.0048701

BA9053/710 AC/DC80-230V AC0.5-5A  UH230V  Nr.0058330

LG5925.02 AC/DC24V Nr.0057272    BD5980N.02  Nr.0035300

BD5980N.02/024 DC24V+AC50/60HZ 230V Nr.0041428

BA9054/011 AC25-250V UH AC230V Nr.0053681  BA9043/002 AC50/60HZ 230/400V Nr.0039121

AN9842.82/012 AC1-10A UHAC230V Nr.0029025  BA9053/010 AC0.1-1A AC110V 0-20S Nr.0053114

BG5933.22 DC24V Nr.0049544  BG5912.04/00000 DC24V  Nr.0056402

LG3096.60 DC24V Nr.0056147  BN3081.63/61 AC/DC24V Nr.0048700

BG5924.04/61 AC/DC24V Nr.0059339  BG5929.60/61 AC/DC24V Nr.0056182

IK9065.11/100 3AC400V 0.4-8A Nr.005535  MK9163N DC24V Nr.0055975

AD5992 AC50/60HZ 230V Nr.0032361  AD5988 AC50/60HZ 230V Nr.0032367

BA9038.11 AC50/60HZ 230V Nr.0026885  BA9038.11/503 AC50/60HZ 230V Nr.0055407

BH5932.22/011 AC/DC24V Nr.0052781  AI938.01 Nr.0001205

MK9151N.02 0.02-4.5M AC230V 0.2-20S Nr.0058201

AI896.07 AC45-400HZ 230V 11K Nr.00896.07  BA7924.21/002/61 DC24V 1S Nr.0057519

BO5988.61/024/61 DC24V+AC230V Nr.0048696  BG5912.81/00000 DC24V Tv=0-3S Nr.0056547

BH5911.03/00MF0 DC24V Nr.0055531

BH5914.08/00MF0 DC24V Nr.0056460

BG5914.08/00MF0 DC24V Nr.0056633  BH5552 Nr.0056874

AA9837.12/032 10-30HZ UH DC24V Nr.0045683

BH5928.93/61 AC/DC24V 1-10S Nr.0053814

ML7870.81 AC/DC24V+AC110-127V Nr.0040345