Bussmann Camaster HRC Fuse Holders CM CFB 30, 60, and 100 Amps 600V A.C. CAMASTER Ratings Fuse Rating Details Reference Accommodated For 30 Amp HRCI-CA CM20CFB ---C1F21B Applications 30 Amp For CM30CFB ---H07CB 60 Amp HRCII CM60CFB ---KO7CB 100 Amp Applications CM100CFB ---K07CRB Accessories for CAMASTER Units Fuse Rating Details Reference Accommodated CATALOG SYMBOL: CM CFB 30 Amp 20BS For CM20CFB 30 Amp Back Stud 30BS For CM30CFB CAMASTER HRC FUSE HOLDERS 60/100 Amp 60/100BS For CM60/100CFB 30, 60, AND 100 AMPERES All Ganging GLP For 3 Pole AGENCY APPROVALS: CSA C22.2 NO. 39 Link Kit IEC 269 AND BS88 All 660V Neon NI-660 Indicator Range: 30 (miniature), 30, 60, and 100 Amps at 600V a.c. All 600V Neon NI-600 Indicator A range of fully shrouded HRC Fuse Holders having an 30 Amp Security 20LSC For CM20CFB advanced design. 30 Amp Carrier 30LSC For CM30CFB They incorporate a high level of innovation, with enhanced 60/100 Amp with Clip. 60/100LSC For CM60/100CFB performance characteristics and comply with the require- All Clip Only 20CML For all sizes ments of: CSA C22.2 No. 39 as well as IEC 269 and BS88 standards. Unique Cam Action. Panel Drilling Plans, Viewed from Front of Panel The Fuse Carriers are fitted with a cam for ease of removal from the Fuse Bases allowing significantly improved contact C L C L .25 pressure between Fuse Carrier and Fuse Base contacts, 6.35mm with a corresponding enhanced electrical performance level22 5.5mm .13 This design overcomes a major problem of all existing dead 1.46 3.2mm .22 front style Fuse Holders manufactured worldwide, which 37.0mm 1.14 5.5mm 29.0mm have to compromise between difficulties of Fuse Carrier C L C removal from Base and contact pressure achieved. L 1.46 37.0mm .75 1.14 .13 Lockable Safety Carriers 19mm 29.0mm 3.2mm A range of Lockable Safety Carriers for the CAMASTER Fuse Holder (Cat ref: LSC), are available59 .25 15.0mm 6.35mm This distinct feature ensures isolation can be achieved allowing maintenance to be carried out in safety. CM20CFB CM30CFB Mounting Torque and Cable Size Fuse Mounting Max Cable Ref Tightening Torques Size C L CM20CFB 1.5Nm 1.11 lb. - ft. 2 .25 6.35mm CM30CFB 1.5Nm 1.11 lb. - ft. 2 .22 CM60CFB 2.0Nm 1.48 lb. - ft. 2/0 .13 5.5mm 1.46 CM100CFB 2.0Nm 1.48 lb. - ft. 2/0 3.2mm 37.0mm C L 1.62 41.0mm .75 .13 19mm 3.2mm .25 6.35mm CM60B + 100CFB Form No. CM CFB 12-17-98 Page 1 of 3 SB98107 Rev. A BIF Doc 4132 Bussmann Camaster HRC Fuse Holders CM CFB 30, 60, and 100 Amps 600V A.C. Unique Conversion Capability. Circuit Identification. Fuse Holders can be readily converted from Front The Fuse Carrier has a marking label for ease of circuit Connection to Front/Back Stud and Double Back Stud identification. Connection types at the point of use. Strip Length Marking. This is achieved with a unique Back Stud Accessory and The length of cable insulation that should be stripped off is the use of a screwdriver. shown on the side of the Fuse Base. See conversion sequence in Fig. 1. Steps 1, 2 and 3 show removal of end ferrule and insertion of Back Stud Dimensional Data Accessory to give the Front/Back Stud Connection type. This sequence repeated at the opposite end gives the Double Back Stud Connection type shown in Step 4. Unique Cable Termination. The fuse holders unique cable terminations are designed for user convenience and to ensure long-term reliability. They incorporate Stainless Steel Saddles and Hardened Termination Screws, maintaining permanent cable clamp- ing to profiled contact plates. The main electrical contact path between the cable and Fuse tag. 1 2 This permits the use of high tightening torques without damage to cables or threads and provides resistance to high cable pull out forces. (See Fig. 2.) The Fuse Holders are supplied with the Hardened Termination Screws backed out ready for cable insertion, saving installation time. Hinged Captive Screws. The Fuse Mounting Screws to Fuse Carrier are held in captive hinges providing ease of mounting and preventing loss during installation. (See Fig. 3.) 3 4 Two/Three Pole Ganging. The unique design of the Carriers allows ganging to be Figure 1. Unique Conversion Capability readily achieved by the use of standard accessories. This provides improved safety related to isolation and protection of 2 Pole and 3 Pole electrical circuits by ensuring that the correctly related poles are removed at the same time. (See Fig. 4.) Dual Mounting Capability. The design as standard provides both Bolted Panel and DIN Rail mounting features. The DIN Rail mounting facility for each of the various dimensioned ratings is so designed as to give equal height and depth above the DIN Rail. Hinged Internal Shields. Figure 2. Unique Cable Termination Non-removable full shrouding of live parts within the Fuse Base is provided by the use of hinged shields. The positive captive nature of these ensures that they cannot be omitted during installation and are so designed that insertion of the Fuse Carrier can only be made with them correctly positioned. Neon Indicator. Neon Clip-in Indicator Accessories are available providing clear location and status of fuses which have operated due to fault conditions. (See Fig. 5.) Figure 3. Hinged Captive Screws Form No. CM CFB 12-17-98 Page 2 of 3 BIF Doc 4132 SB98107 Rev. A