MAR-BAL Products
Custom
Parts by Application
Engineered
Composite Materials
Standoff
Insulators
Fire
Resistant Wastebasket
UL Certification Info
Mar-Bal’s
Capabilities
Octagon Center Post 4000 Series Insulators
UL E84767
Physical and Electrical
Properties
Tensile Strength (lbs.)
3000-4500
Cantilever Strength
(in. lbs)
2400-5000
Compression Strength (lbs.)
15000-18000
Thread Stripping Torque
(ft. lbs.)
42-50
Dielectric Strength (volts S.T.)
15000-16000
Arc Resistance (sec.
ASTM D495)
180 +
Water Absorption (% in 24 hrs. @ 23°c)
0.15
Height Tolerance(in.)
±.015
Creep Distance (in.)
1/4"+Ht.
UL subject 94 Flame
Resistance
94 V-0
Part Number Suggest Indoor Voltage Carton Quantity UL File Number Shape Diameter Height Insert Size Type
4150-S2 1500
169
UL E84767
Octagon
2
1-1/2
1/4-20 x 1/2
Steel
4150-A3 1500
169
UL E84767
Octagon
2
1-1/2
5/16-18 x 3/8
Aluminum
4150-S3 1500
169
UL E84767
Octagon
2
1-1/2
5/16-18 x 3/8
Steel
4150-A4 1500
169
UL E84767
Octagon
2
1-1/2
3/8-16 x 3/8
Aluminum
4150-S4 1500
169
UL E84767
Octagon
2
1-1/2
3/8-16 x 3/8
Steel
4175-A3 2000
144
UL E84767
Octagon
2
1-3/4
5/16-18 x 3/8
Aluminum
4175-A4 2000
144
UL E84767
Octagon
2
1-3/4
3/8-16 x 3/8
Aluminum
4175-S4 2000
144
UL E84767
Octagon
2
1-3/4
3/8-16 x 3/8
Steel
4175-S5 2000
144
UL E84767
Octagon
2
1-3/4
3/8-16 x 9/16
Steel
4175-A5 2000
144
UL E84767
Octagon
2
1-3/4
3/8-16 x 9/16
Aluminum
4200-A3 2500
133
UL E84767
Octagon
2
2
5/16-18 x 3/8
Aluminum
4200-A5 2500
133
UL E84767
Octagon
2
2
3/8-16 x 9/16
Aluminum
4200-S5 2500
133
UL E84767
Octagon
2
2
3/8-16 x 9/16
Steel
4200-A6 2500
133
UL E84767
Octagon
2
2
1/2-13 x 5/8
Aluminum
4200-S6 2500
133
UL E84767
Octagon
2
2
1/2-13 x 5/8
Steel
4225-A5 2700
108
UL E84767
Octagon
2
2-1/4
3/8-16 x 9/16
Aluminum
4225-S5 2700
108
UL E84767
Octagon
2
2-1/4
3/8-16 x 9/16
Steel
4225-A6 2700
108
UL E84767
Octagon
2
2-1/4
1/2-13 x 5/8
Aluminum
4225-S6 Red 2700
108
UL E84767
Octagon
2
2-1/4
1/2-13 x 5/8
Steel
4225-S6 Gray 2700
108
UL E84767
Octagon
2
2-1/4
1/2-13 x 5/8
Steel
+ All Insulators Listed Can Also Be Molded Using MAR-BAL High Track Resistant-Supertrack
MB4000 Compound
Click to view UL card Click to view Cross Reference List of
Insulators
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