nema terminal blocks one piece blocks d escription /a pplication traditionally, these rugged one piece blocks are the standard means of connection for heavy industrial applications like rail transport, utility, and traffic control industries. ideal for dirty and vibration prone environments. d esign a dvantages ?two, four, six. eight. and twelve circuit models available ?5/8" center-to-center contact spacing. ?no assembly required ?each is a single, easily installed unit. ?three contact styles available strap screw, captive strap clamp. and moving tubular contact. ?use wire up to awg #6 with tubular contact. strap screw and strap clamp contacts are available for #8 and smaller. ?withstand voltages in excess of ieee standards for 750 volts. meet clearance and creepage spacings specified in ul, csa, and nema industrial control standards for 600 volts. ?strap contacts rated at 50 amperes ?tubular contact conservatively rated at 70 amperes. ?pilot point screws supplied with strap screw and clamp contacts speeds installation time. ?plain white marking strip supplied with each block ?circuits are easily identified. ?special purpose blocks available choose from blocks with solder posts, printed circuit board pins, or nuts on screw posts, removable circuit links, and a shorting bar. 307 thomas & betts electronics/oem division tel: 901-252-5000 fax: 901-252-1312 one piece phenolic blocks lr25557 e63810
nema terminal blocks one piece blocks 308 thomas & betts electronics/oem division tel: 901-252-5000 fax: 901-252-1312 dimensions shown are for reference only. dimension s are in inches. b100, #b100 series one piece ?phenolic p hysical p roperties housing: h ousing m aterial : phenolic, filled flame retardant f lammability : ul94v-1 c olor : black contacts: s tandard m aterial : electrical grade copper or copper alloy conductor. steel screws plated to resist corrosion in most industrial applications. b rass m aterial : for corrosive environment (2b100, 4b100 series) nickel plated brass straps and screws. exceeds specification q q-n-290 class 1, type vii w ire r ange : strap screw: #18-8 awg solid or stranded; strap clamp: #18-8 awg solid or stranded; tubular clamp: #14-6 awg solid or stranded s crew t ype : strap screw: #10-32 binding head; strap clamp: #8-32 pan head w/clamp and lockwasher; tubular clamp: #1/4"-28 set screw s trap s crew : 7/16" max. lug width mechanical: p itch ( terminal spacing ): .63" w ire s trip l ength : strap screw: as needed for lugging; strap clamp: 1/2"; tubular clamp: 1/2" e lectrical p roperties m aximum c urrent : 70a for a single #6 awg wire o perating v oltage : blocks meet 600v creepage and clearance requirements for general industrial control equipment and panelboards; greatly exceeds ieee switchgear standards for 750 volts. d ielectric s trength (rh 40% @ sea level ): 300 volts/mil thickness per astm d149 ul h igh v oltage a rc t racking ( in ./ min .): .49-.58 e nvironmental p roperties m ax . c ontinuous t emperature : 150? c (302? f) w ater a bsorption (24 hrs . % wt . gain ): .45% per astm d570 c hemical r esistance : resistant to acids, alkalies, and aliphatic hydrocarbons and ketones per astm d543 r adiation r esistance ( ergs g -1 (c): 2.7 x 10 8 min ul i ndependent t esting s ervice r ecognitions : w ire s izes : solid or stranded, tubular clamp 1?6 awg, 1?8 awg, 1or 2 ?#10 awg, 1or 2?12 awg, 1 to 3?14 awg, 1 ?10 & 1 ?12 awg 1 ?#12 & 1 ?#14 awg strap clamp 1 ?#18 through 1 ?#8 awg lr25557 e63810 steel brass screw strap tubular screw circuits w/strap clamp clamp w/strap contact type standard 2 b102 b102c b102s 2b102 4 b104 b104c b104s 2b104 6 B106-BU b106c b106s 2b106 8 b108 b108c b108s 2b108 12 b112-bu b112c b112s 2b112 shorting 2 3b102p 4b102p 4 3b104p 4b104p 6 3b106p 4b106p 8 3b108p 4b108p 12 3b112p 4b112p strap threaded screw post circuits #8 & smaller & nut removable link 2 5b102 4 5b104 6 5b106 8 5b108 12 5b112 stud 2 7b102 4 7b104 6 7b106 8 7b108 12 7b112 ordering information notes: for prenumbered marking strip, add suffix ??to catalog number. cannot be used on 3b or 4b series. for factory assembled hinged cover, add suffix ??to catalog number. cannot be used on 3b or 4b series. for factory assembled thumbscrew-fastened cover, add suffix ??to catalog number. cannot be used on 3b or 4b series. screws and removable links shipped unassembled. except for 3b of 4b series
nema terminal blocks one piece blocks b100 #b100 series one piece blocks ?phenolic accessories 309 thomas & betts electronics/oem division tel: 901-252-5000 fax: 901-252-1312 lr25557 e63810 dimensions shown are for reference only. dimensions are in inches. laminated shorting white numbered # of phenolic block marking marking circuits cover cover strip strip catalog number 2 c102 cs102 s102 n102 4 c104 cs104 s104 n104 6 c106-bu cs106 s106 n106 8 c108-bu cs108 s108 n108 12 c112 cs112 s112 n112 standard package 11 11 30a 50a # of copper 12 circuit connecting shorting circuits jumpers jumpers link lock nuts screw catalog number 2 j102 4 j104 6 j106 8 j108 12 j112 hj112 hardware cl101 ln101-bu 51-bu standard package 1 1 10 50 covers and marking jumpers hardware
nema terminal blocks one piece blocks 310 thomas & betts electronics/oem division tel: 901-252-5000 fax: 901-252-1312 dimensions shown are for reference only. dimension s are in inches. b100 #b100 series one piece blocks ?phenolic
dimensions shown are for reference only. dimensions are in inches. nema terminal blocks one piece blocks 311 thomas & betts electronics/oem division tel: 901-252-5000 fax: 901-252-1312 b100 #b100 series one piece blocks ?phenolic
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