Cylindrical Fuse Holders

They are capable of working under heat caused by ratedcurrent and expected short impacting current up to 100KA ApplicationsThese fuse holders are supporters for fuses with size up to 22x58mm. They are capable of working under heat caused by ratedcurrent and expected short impacting current up to 100KA. It canalso function as a fuse disconnecting switch by multi-phasecombination. There are two in/out lines at the RT18N fuse base,providing a power cut function. The RT18L type has a safety lockto lock the fuse carrier when disconnected to avoid wrong operation;it can also be equipped with an indicator, which goes on when thefuse linke breaks. Rated insulate voltage up to 690V; Working frequency 50Hz AC;Conventional free air thermal current up to 125A; Compliant withGB13539.1, GB13539.2, GB13539.6, GB14048.3 and IEC269-1,IEC269-2, IEC269-2-1, IEC947-3 . Design FeaturesAfter the plastic-injected case is equipped with contacts andfuse links, the bases are formed by welding or riveting bothcapable of being multi-phase structured. FB15C, FB16-3J, FB19C-3J, RT19 are open-structure, and others are semi-concealedstructure. There are five fuse sizes available to choose from for thesame fuse base of RT18N, RT18B and RT18C. There are two setsof in-out lines for RT18N. One is installed with fuse links of theaccording size. The other is a permanent open contacts withdouble breaking points. The whole base unit can cut the power.RT18 bases are all DIN rail installed, among which the RT18L isequipped with safety lock against wrong operation in the breakingstate. Base DataThe models, rated insulate voltage, rated current, and dimensions are shown in Figures 1~14 and Table 1~14 (Width of N-phasecombination is Bn-nB). Table 1

Models	Fuse Link models	Rated insulation voltage (V)	Conventional free air themal current (A)	Dimensions/ Sizes(mm)	Weight (g)
				Fig.
RT14-20	10x38	500	20	Bolt installing hole Φ4.5 Figure 1	38
RT14G-20	10x38	500	20	Widt 15mm rail installation Figure 1	44

 Table 2

Models	Fuse Link models	Rated insulation voltage (V)	Conventional free air themal current (A)	Dimensions/ Sizes(mm)						Weight (g)
				Fig.	A1	B	H1	H2	Φd
RT14-32	14x51	500	32	Figure 2	105	26.5	57	135	5.5	148
RT14-63	22x58	500	63	Figure 2	125	35	66	158	5.5	241

 Table 3

Models	Fuse Link models	Rated insulation voltage (V)	Conventional free air themal current (A)	Dimensions/ Sizes(mm)						Weight (g)
				Fig.	A1	A2	B	H1	H2
RT18-32(X)	10x38	500	32	Figure 5	79	81	18	61	80	59
RT18B-10	8.5x23	500	10	Figure 5	80	82	18	60	78	59
RT18B-16	10x25.8	500	16	Figure 5	80	82	18	60	78	59
RT18B-20	8.5x31.5	500	20	Figure 5	80	82	18	60	78	59
RT18B-25	10x31.5	500	25	Figure 5	80	82	18	60	78	59
RT18B-32	10x38	500	32	Figure 5	80	82	18	60	78	59
RT18C-10	8.5x23	500	10	Figure 5	77	78	18	62	81	56
RT18C-16	10x25.8	500	16	Figure 5	77	78	18	62	81	56
RT18C-20	8.5x31.5	500	20	Figure 5	77	78	18	62	81	56
RT18C-25	10x31.5	500	25	Figure 5	77	78	18	62	81	56
RT18C-32	10x38	500	32	Figure 5	77	78	18	62	81	56
RT18M-32	10x38	500	32	Figure 5	78	78	18	60	80	56
HG30-32	10x38	500	32	Figure 5	78	80	18	73	88	57
RT18-63(X)	14x51	500	63	Figure 5	103	105	27	80	110	192

 Table 4

Models	Fuse Link models	Rated insulation voltage (V)	Conventional free air themal current (A)	Dimensions/ Sizes(mm)	Weight (g)
				Fig.
RT18N-10	8.5x23	500	10	Figure 6	70
RT18N-16	10x25.8	500	16	Figure 6	62
RT18N-20	8.5x31.5	500	20	Figure 6	63
RT18N-25	10x31.5	500	25	Figure 6	62
RT18N-32	10x38	500	32	Figure 6	62

 

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