Resistance Boxes for EOT Cranes



Punched Grid & Stainless Steel wire grid available.



Current Rating - 10 Amps to 800 Amps.

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Resistance Box

Punched Grid Resistance Boxes are designed from the ground up for harsh Industrial Use.

Two Different models are available

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Stainless Steel wire grid resistors
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Punched Steel Grid Resistors.
A.

EOT Crane Resistance Box Description:

Resistors are supplied for both AC & DC Requirements. The basic types of resistors are stainless steel wire & punched steel.Suitable for current rating 10 to 800 Amps.Multiple paths are used for system having higher ratings.

B.

Punched Steel Grid Resistors for EOT Cranes

Punched Steel Grid Resistors consist of grids punched from sheet of corrosion resistant nickel chromium alloy sheet steels.The punched steel grids are very robust with no effect ofjerks,shocks or vibrations.Ideal for heavy duty oeprating conditions like steel mill application.Avalable in current rating 8 Amps to 800 Amps.

Resistance Box

Applications of Crane Resistance Box

EOT Cranes

Electric Hoists

Gantry Cranes

Goliath Cranes

Mobile Cranes

Tower Cranes

Image Description
Image Description

Punched Grid Resistance Box Technical Data Specifications

Resistance Box
Enclosure Sheet Steel Duty galvanized/Painted.
Mounting Position Floor
Protection Degree IP-11/IP-21/IP-23/IP-33
Current Rating(S.S grid) Continuous 7-400 Amps
Current Rating(S.S grid) Continuous 7-800 Amps
Cooling Air/Oil Cooled
Temperature Rise 2250C/2500C/3750C
Cable Entry Bottom

Current Rating for various Duty Factors(Amps)

Rated Value Ohms Grid Type 25% ED 40% ED 60% ED 100% ED
0.010 PS 10 390 325 280 234
0.022 PS 22 265 220 190 158
0.032 PS 32 220 182 153 131
0.046 PS 46 185 151 130 110
0.068 PS 68 152 126 110 90
0.100 PS 100 125 103 88 74
0.150 PS 150 101 84 72 61
0.220 PS 220 83 70 59 50
0.300 PS 300 82 59 50 43
0.460 PS 460 58 48 40 35
0.720 PS 720 47 39 33 28
1.000 PS 1000 40 33 28 24
1.500 PS 1500 32 27 23 19
2.500 PS 2500 25 21 18 15
4.500 PS 4500 15 13 11 8