Resistance Boxes for EOT Cranes
Punched Grid & Stainless Steel wire grid available.
Current Rating - 10 Amps to 800 Amps.

Punched Grid Resistance Boxes are designed from the ground up for harsh Industrial Use.
Two Different models are available
Stainless Steel wire grid resistors
Punched Steel Grid Resistors.
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.
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.

Punched Grid Resistance Box Technical Data Specifications
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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 |