Cut Sheet

A-31
1-800-435-0705 CUSTOMER ASSISTANCE WWW.IDEALINDUSTRIES.COM
TerminaL BLoCKs
Wire TerminaTion
Specification Chart - pgs. A-30 & A-31
300 Series Phenolic
Fuse Blocks
100 Series Phenolic One
Piece Terminal Blocks
• Providein-linecircuitprotectionfor
 anycircuitorgroupofcircuits
• Threecontactstylesforterminated
 orunterminatedwireareconservativelyratedto30A
• Remove,checkandreplacefusessafelyandquickly–
switch-actionfuseblocksopencircuitsbeforefusecanbe
removedorinstalled
• Goodcircuitdensitywhenmountedadjacently–91circuits
per6footlength
• Useinhightemperatureapplications–phenolichousing
withstandstemperaturesupto302°F(150°C)
• Flatbasemodelsforsurfacemounting,dovetailbasemodels
forstandardchannel
• Onlyoneendsectionneededperblockassembly
• Openorcloseseveralcircuitssimultaneously–holesin
pullerhandlesallowuseofnylon“ganging”rods
• Readilyidentifiablecircuits–markdirectlyonwhite,matte-
surfacepullerassembly,markingtabonblockoruse
removablemarkingtape
• Sectionssnap-fitwithHeavyDutyandIntermediateHeavy
DutyBlocks
Specifications
Center-to-Center Spacing: .75 in. CL: 16 circuits per foot.
Fuse Size: Any 13/32 in. x 1-1/2 in. ferrule-type cartridge fuse up to 30A,
indicating or non-indicating, which meets MIL. Spec. F-15160 is recommended.
WIRE RANGE: Solid or Stranded
Tubular Screw – Cat. No. 362 and 0362 – 1 #4 AWG, 1 #6 AWG, 1 or 2 #8 AWG,
1 to 4 #10 AWG, 1 to 5 #12 AWG, 1 to 6 #14 AWG, 1 to 6 #16 AWG, 1 to 8 #18 AWG
LR25557
E63810
Traditionalstandardintheheavy
industrial,railtransport,utilityand
trafficcontrolindustries.Therugged,
one-piececonstructionfindswide
applicationindirtyandvibration-prone
environments.
• Two,four,six,eightandtwelvecircuitmodels
• Strapscrewcontactsacceptwire8AWGandsmallerand
 areratedto50Amps
• Pilotpointscrewswithstrapscrewcontactsspeed 
 installationtime
• Easilyidentifiablecircuitswithuseofplainwhitemarking
 strip
• Noassemblyrequired-eachblockisasingle,easily 
 installedunit
Specifications
Center-to-Center Spacing: .63 in. CL
WIRE RANGE: Solid or Stranded
Strap Screw – 1 #18 AWG through 1 #8 AWG
Voltage Rating: Blocks meet 600V creepage and clearance requirements of NEMA, UL and CSA for general industrial
control equipment and panelboards. Withstands voltages greatly in excess of IEEE switchgear standards for 750V.
800 Series Nylon 400 Series Phenolic 300 Series Phenolic 100 Series Phenolic
Housing Material Nylon, Type 6/6 Unfilled Phenolic, Filled, Flame retardant Phenolic, Filled, Flame retardant Phenolic, Filled, Flame retardant
Contact Material Copper Copper Copper Alloy Copper / Copper Alloy
Screw Material Steel, Zinc-Plated Steel Plated Steel Plated Steel Plated
Maximum Service Temperature 125°C (257°F) 150°C (302°F) 150°C (302°F) 150°C (302°F)
Breakdown Voltage AC, 60 Hz 8800V 1000V 8400V
—
Dielectric Strength (RH40% at sea level)
470-385V/mil thickness
(per ASTM D149)
300V/mil thickness
(per ASTM D149)
300V/mil thickness
(per ASTM D149)
300V/mil thickness (per ASTM D149)
UL High Voltage Arc Testing (in./min.) .01 - .35 .49 - .58 .49 - .58 .49 - .58
Water Absorption (24 hrs. % weight gain)
1.5% 0.45% (per ASTM D570) 0.45% (per ASTM D570) 0.45% (per ASTM D570)
Flammability 94V-2 94V-1 (per UL94) 94V-1 (per UL94) 94V-1 (per UL94)
Chemical Resistance
Resistant aromatic
hydrocarbons,strong alkalies
Resistant to acids, alkalies,
aliphatic hydrocarbons and
ketones (per ASTM D5343)
Resistant to acids, alkalies, aliphatic
hydrocarbons and ketones
(per ASTM D5343)
Resistant to acids, alkalies, aliphatic
hydrocarbons and ketones
(per ASTM D5343)
Radiation Resistance (ergs g
1
C) 8 X 10
7
min. 2.7 X 10
8
min. 2.7 X 10
7
min. 2.7 X 10
7
min.