Product Description: The porcelain disc rheostat is applicable to industrial electrical equipment with voltage not exceeding 380V for voltage and current regulation, voltage regulation of AC and DC generators and speed regulation of DC motors. Kang copper wire or nickel chromium wire is used as the resistance material to wind around the circular ceramic framework, the external coating is enamel process glass glaze or silicone coating and bonded to the ceramic chassis, and the center is equipped with a rotating shaft to drive the brush holder and brush to slide, so as to obtain the variable resistance value. The rheostat is divided into two types: open type and protective type. The protective type is that the rheostat is added with metal protective box shell and adjusted by hａnd wheel.
BC1 porcelain disc rheostat
Model power（W）	A	B	F	power	Resistance value
					minimum	maximum
BC1-25	44	43	50	25W	1	3K
BC1-50	66	43	75	50W	1	5K
BC1-100	84	43	95	100W	1	5K
BC1-150	106	48	120	150W	1	5K
BC1-300	170	74	180	300W	1	5K
BC1-500	210	60	230	500W	1	5K
BC1-50W/2	80	100	75	100W	2	10K
BC1-100W/2	97	112	95	200W	2	10K
BC1-150W/2	135	120	120	300W	2	10K
BC1-300W/2	175	165	180	600W	2	10K
BC1-500W/2	220	165	230	1000W	2	10K
BC1-150W/3	170	220	120	450W	3	15K
BC1-300W/3	175	275	180	900W	3	15K
BC1-500W/3	220	275	230	1500W	3	15K