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10    Rail-Mounted Terminal Blocks with Overvoltage Protection



  472
                                            With varistor                      With suppressor diode
                                            V  AC/DC 24 V ... 115 V;           V  AC/DC 24 V ... AC 230 V;
                                             BN
                                                                                BN
                                            I  60 A ... 300 A                  I  1.1 A ... 12 A
                                                                               N
                                            N
                                            Terminal block width 5 mm/0.197 in  Terminal block width 5 mm/0.197 in
                                                                      (_________ 58,5mm/2.30 in ________)  (_________ 58,5mm/2.30 in ________)












                                                 <_________ 64 mm/2.52 in __________>  <_________ 64 mm/2.52 in __________>
        Through terminal blocks with the same shape see Full Line
        Catalog Volume 1









        Description                                      Item No.        Pack.              Item No.        Pack.
                                                                         Unit  V BN                         Unit
                                            V BN
        Terminal block with surge suppression device and    24  VDC  280-502/281-609  50   24  VDC  280-502/281-602  50
        direct connection to DIN 35 rail    48  VDC      280-502/281-610  50    48  VDC     280-502/281-603  50
                                             60  VDC     280-502/281-611  50    60  VDC     280-502/281-604  50
                                             110  VDC    280-502/281-612  50    110  VDC    280-502/281-605  50
                                             24  VAC     280-502/281-613  50    24  VAC     280-502/281-606  50
                                             115  VAC    280-502/281-614  50    115  VAC    280-502/281-607  50
                                                                                230  VAC    280-502/281-608  50



        Technical Data  Nominal operating   Max. cont. operating   Nominal discharge current   Max. surge current   Capacity  Protection level
                        voltage V BN   voltage V C    (8/20 μs) per line I N  (8/20 μs) I max.     (8/20 μs) V P
        Terminal blocks with    24  VDC  31 VDC       60 A           250 A          ≤ 1.25 nF      77 VDC
        varistor         48  VDC       65 VDC         300 A          1.2 kA         ≤ 0.5 nF       135 VDC
                         60  VDC       85 VDC         300 A          1.2 kA         ≤ 0.48 nF      165 VDC
                         110  VDC      150 VDC        300 A          1.2 kA         ≤ 0.22 nF      300 VDC
                         24  VAC       30 VAC         60 A           250 A          ≤ 1.05 nF      93 VAC
                         115  VAC      140 VAC        300 A          1.2 kA         ≤ 0.18 nF      360 VAC

        Technical Data  Nominal operating   Max. cont. operating   Nominal discharge current   Capacity  Protection level
                        voltage V BN   voltage V C    (10/1000 μs) per line I N                    (10/1000 μs) V P
        Terminal blocks with    24  VDC  30.8 V DC    12 A                          ≤ 1 nF         50 VDC
        suppressor diode   48  VDC     58 V DC        6.5 A                         ≤ 0.63 nF      92 VDC
                         60  VDC       77 V DC        4.8 A                         ≤ 0.55 nF      125 VDC
                         110  VDC      136 V DC       2.7 A                         ≤ 0.4 nF       219 VDC
                         24  VAC       28 V AC        9.3 A                         ≤ 0.8 nF       65 VAC
                         115  VAC      133 V AC       1.7 A                         ≤ 0.35 nF      384 VAC
                         230  VAC      253 V AC       1.1 A                         ≤ 0.36 nF      548 VAC
        Technical Data
        Wire connection                                 CAGE CLAMP ®                       CAGE CLAMP ®
        Cross sections                           0.08 mm² ... 2.5 mm² / AWG 28 ... 14  0.08 mm² ... 2.5 mm² / AWG 28 ... 14
        Strip length                                  8 ... 9 mm / 0.33 in                8 ... 9 mm / 0.33 in

        Accessories                                      Item No.   Pack. Unit              Item No.    Pack. Unit



        End and Intermediate Plate, 2.5 mm/0.098 in thick  orange  280-341  100 (4*25)  orange  280-341  100 (4*25)
                                            gray         280-340    100 (4*25)  gray        280-340     100 (4*25)
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