Cylindrical Fuse Holders

Applications

• These fuse holders are supporters for fuses with size up to 22x58mm. They are capable of working under heat caused by rated current and expected short impacting current up to 100KA. It can also function as a fuse disconnecting switch by multi-phase combination. There are two in/out lines at the RT18N fuse base, providing a power cut function. The RT18L type has a safety lock to lock the fuse carrier when disconnected to avoid wrong operation; it can also be equipped with an indicator, which goes on when the fuse link 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 Features

• After the plastic-injected case is equipped with contacts and fuse links, the bases are formed by welding or riveting both capable of being multi-phase structured. FB15C, FB16-3J, FB19C-3J, RT19 are open-structure, and others are semi-concealed structure. There are five fuse sizes available to choose from for the same fuse base of RT18N, RT18B and RT18C. There are two sets of in-out lines for RT18N. One is installed with fuse links of the according size. The other is permanent open contacts with double breaking points. The whole base unit can cut the power.RT18 bases are all DIN rail installed, among which the RT18L is equipped with safety lock against wrong operation in the breaking state.

Base Data

• The 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	690	20	Bolt installing hole Φ4.5 Figure 1	38
RT14G-20	10x38	690	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	690	32	Figure 2	105	26.5	57	135	5.5	148
RT14-63	22x58	690	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	B	H1	H2	Φd
RT19-16	8.5x31.5	690	16	Figure 3	69	18.5	28.5	41.5	5	34
RT19-25	10x38	690	25	Figure 3	80	23	35	53	6.5	57

Table 4

Models	Fuse Link models	Rated insulation voltage (V)	Conventional free air themal current (A)	Dimensions/ Sizes(mm)					Weight (g)
				Fig.	A1	B	H1	Φd
RT19-40	14x51	690	40	Figure 4	91	28.5	40	5.5	78
RT19-100	22x58	690	100	Figure 4	108	36	50	6.5	157

Table 5

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	690	32	Figure 5	79	81	18	61	80	59
RT18B-10	8.5x23	690	10	Figure 5	80	82	18	60	78	59
RT18B-16	10x25.8	690	16	Figure 5	80	82	18	60	78	59
RT18B-20	8.5x31.5	690	20	Figure 5	80	82	18	60	78	59
RT18B-25	10x31.5	690	25	Figure 5	80	82	18	60	78	59
RT18B-32	10x38	690	32	Figure 5	80	82	18	60	78	59
RT18C-10	8.5x23	690	10	Figure 5	77	78	18	62	81	56
RT18C-16	10x25.8	690	16	Figure 5	77	78	18	62	81	56
RT18C-20	8.5x31.5	690	20	Figure 5	77	78	18	62	81	56
RT18C-25	10x31.5	690	25	Figure 5	77	78	18	62	81	56
RT18C-32	10x38	690	32	Figure 5	77	78	18	62	81	56
RT18M-32	10x38	690	32	Figure 5	78	78	18	60	80	56
HG30-32	10x38	690	32	Figure 5	78	80	18	73	88	57
RT18-63(X)	14x51	690	63	Figure 5	103	105	27	80	110	192

Table 6

Models	Fuse Link models	Rated insulation voltage (V)	Conventional free air themal current (A)	Dimensions/ Sizes(mm)	Weight (g)
				Fig.
RT18N-10	8.5x23	690	10	Figure 6	70
RT18N-16	10x25.8	690	16	Figure 6	62
RT18N-20	8.5x31.5	690	20	Figure 6	63
RT18N-25	10x31.5	690	25	Figure 6	62
RT18N-32	10x38	690	32	Figure 6	62

Table 7

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
RT18L-63	14x51	690	63	Figure 7	108	115	27	78	100	114
RT18L-125	22x58	690	125	Figure 7	126	134	36	78	104	182

Table 8

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	Φd
HG30-63	14x51	690	63	Figure 8	107	80	27	80	102	4.5	167
HG30-125	22x58	690	125	Figure 8	140	110	36	90	109	4.5	185

Table 9

Models	Fuse Link models	Rated insulation voltage (V)	Conventional free air themal current (A)	Dimensions/ Sizes(mm)	Weight (g)
				Fig.
FB14-16X	8.5x31.5	690	16	Figure 9	38

Table 10

Models	Fuse Link models	Rated insulation voltage (V)	Conventional free air themal current (A)	Dimensions/ Sizes(mm)	Weight (g)
				Fig.
FB15C	10x38	690	32	Figure 10	25

Table 11

Models	Fuse Link models	Rated insulation voltage (V)	Conventional free air themal current (A)	Dimensions/ Sizes(mm)	Weight (g)
				Fig.
FB16-3J	14x51	690	50	Figure 11	140

Table 12

Models	Fuse Link models	Rated insulation voltage (V)	Conventional free air themal current (A)	Dimensions/ Sizes(mm)	Weight (g)
				Fig.
FB19C-3J	27x139	600	63	Figure 12	365

Table 13

Models	Fuse Link models	Rated insulation voltage (V)	Conventional free air themal current (A)	Dimensions/ Sizes(mm)									Weight (g)
				Fig.	A1	A2	A3	B1	B2	H1	H2	Φd
ZRB-50	14x51	690	50	Figure 13	98	95.5	42.5	12	30	45	123	5	104
ZRB-100	22x58	690	100	Figure 13	107.5	103.5	48.5	18	35	59	142	6	150

Table 14

Models	Fuse Link models	Rated insulation voltage (V)	Conventional free air themal current (A)	Dimensions/ Sizes(mm)	Weight (g)
				Fig.
RT14E-100	22x58	690	100	Figure 14	146