filtered t erminal blocks 250 v olt ac rated filtered t erminal blocks p ar t number number of a b c cir cuits in. (mm) in. (mm) in. (mm) 52-257-002-a 2 1.71 (43.4) 1.31 (33.3) 1.02 (25.9) 52-257-003-A 3 2.15 (54.6) 1.75 (44.5) 1.46 (37.1) 52-257-004-a 4 2.59 (65.8) 2.19 (55.6) 1.90 (48.3) 52-257-005-a 5 3.02 (76.7) 2.62 (66.5) 2.32 (58.9) 52-257-006-a 6 3.46 (87.9) 3.06 (77.7) 2.77 (70.4) applications n meter ing equipment n prog r ammab le controllers n industr ial process control n hea vy equipment controls n p o w er supplies n regulators n surge sensing equipment n p o w er f actor correction n t elecomm unications po w er management, a tm, sonet, etc. n medical equipment spectr um control s filtered ter minal b loc k pro vides super ior emi/rfi filter ing of a c po w er and control lines . this ter minal b loc k is a v ailab le in v ar ious siz es , with ter minals f or solder ing, spade lugs , or wire pigtails . t er mination options a v ailab le: str aight lead male or f emale disconnects , or wire pigtails in lengths to y our specification. features n ul recogniz ed and csa appro v ed f or a c v oltages . n e133076, ul 1059. n lr92537, csa std 22.2 n 158-1987 and ecn584b . n t er mination options a v ailab le: str aight lead, male or f emale disconnects , pigtail (12 a wg-22 a wg). .312 (7.9) .031 .002 (.79 .05) .032 (.81) .810 (20.57) .75 (19.05) .27 (6.86) .415 (10.5) .062 .002 (1.57 .10) ground plane a c .562 (14.28) b .213 (5.41) .212 (5.4) (2x) #6-32unc-2a thd. philslot screw zinc plated .32 (8.13) .650 (16.51) .40 (10.16) .093 x 45 chamfer 4x marking: sci 52-257-xxx-a xxxx - date code marking: stamp specifications electrical operating temperatur e: -55 c to +105 c v oltage rating: 250v a c curr ent rating: 20 amps w ir e range: 12-22a wg t or que: 9 lb-in. capacitance: 2000pf to 5200pf dielectric withstanding voltage: 1500v a c @ 25 c mechanical center spacing: .438 (11.1 mm) w ir e size: a wg #12 max. f or 20 amp scr ew size: 20a - #6-32, zinc plated philslot molded material: ul r ated 94v o poly amide t ightening tor que: 9 in.-lbs . max. t erminal options: str aight lead, male or f emale disconnects , pigtail
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