Screw Base Type Fuse Links 
1.Applications

• Protection against overload and short-circuit in electric lines(type gG), also available for protection of semiconductor parts and equipment’s against short-circuit (type aR) and protection of motors(type aM).
• Rated voltage up to 1140V; Rated current up to 630A; Working frequency 50Hz AC; Rated breaking capacity up to 50KA. Compliant with GB13539 and IEC269.

2.Design Features

•  Variable cross-section fuse element made from pure metal sealed in cartridge made from high-duty ceramic. Fuse tube filled with chemically treated high-purity quartz sand as arc-extinguishing medium. Indicator springs out when fuse cuts to give caution.

 

Types				Size	Rated voltage(V)	Rate current(A)	Dimension(mm)					Weight(g)
Ours		Cross-reference
General (gG)	Fast(aR)	General (gG)	Fast(aR)				Fig.	ΦA	ΦC	ΦD	L
RO21	RS21	5SB E27	5SD	DII	500	2 ~ 6	Figure 1	6	22	13	50	24.8
		RL6-25				8 ~ 10	Figure 1	8	22	13	50
						13	Figure 1	8	22	15	50
						16	Figure 1	10	22	15	50
						20	Figure 1	12	22	15	50
						25	Figure 1	14	22	15	50
RO22	RS22	5SB E33	5SD	DIII	500	30 ~ 40	Figure 1	16	27	20	50	48.1
		RL6-63				50	Figure 1	18	27	20	50
						63	Figure 1	20	27	20	50
RO23	RS23	--	--	DIII	500	2 ~ 6	Figure 1	6	27	20	70	64
						8 ~ 10	Figure 1	8	27	20	70
						16	Figure 1	10	27	20	70
						20	Figure 1	12	27	20	70
						25	Figure 1	14	27	20	70
						35	Figure 1	15	27	20	70
						50	Figure 1	18	27	20	70
						63	Figure 1	20	27	20	70
RO24	RS34	E16	--	--	500	2 ~ 6	Figure 1	6	12.5	11.3	50	11.7
		5SA				10	Figure 1	8	12.5	11.3	50
						16	Figure 1	10	12.5	11.3	50
						20 ~ 25	Figure 1	12	12.5	11.3	50
RO27	RS27	BLA	BLC	--	600	3 ~ 10	Figure 1	8	12.5	11.5	50	13.1
RO28	RS28	BLA	BLC	--	600	15 ~ 20	Figure 1	10	12.5	11.5	50	14.5
RO29	RS29	BLA	BLC	--	600	25 ~ 40	Figure 1	14	12.5	11.5	50	16.4