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Change-over contactors are multiple contactors bound together that allow the user to change the polarity of the voltage going to the motor thus reversing direction. It works exactly the same as the manual F/R switch, except that it uses coil drive contactors. -Alltrax
Our optional installation kit includes: Reversing (Change-over) Contactor - select Voltage, Contactor Coil Spike Supression Diodes, Heat Shrink Tubing, SPDT Rocker Switch and Housing, Quick Disconnect Spade Connectors, and Choice of Tinned Copper Terminal Lugs. Small gauge wire not included.
Heavy Duty Welding Cable may also be purchased optionally, by the foot.
Contactor Specifications:
| Rated voltage | 48V or 72V |
| Contact circuit rated load current (A) | 400A |
| Typical voltage drop across contacts per 100A | ≯80mV |
| the cooling pull-in voltage at (20±5)℃ (V) | ≯70% |
| the cooling drop-out voltage at (20±5)℃(V) | ≯30%,≮5% |
| the allowed range of coil voltage | ±20% |
| Drop-out time(n/o contacts to open) | 10ms |
| Pull-in time (n/o contacts to close) | 40ms |
| Disconnect the maximum contact bounce time | 3ms |
| Insulation resistance | 20MΩ |
| Electric strength to resist | 50Hz/60Hz 1000VAC 1minute |
| Typical fault currents which can be ruptured | 1500A/5ms at 48V DC |
| Coil power (W) | 13-20 |
| Electric life | 20000 times |
| Mechanical life | 300 thousand times |
| Work specification | Continuous or Intermittent |
| Contact form | Convert the two groups (2 SPDT) |
| Contact material | AgCdO |
| Normally closed to normally open | 14ms |
| Normally open to normally closed | 8ms |
| Testing organization certification | CE,FCC |
Environment:
| Ambient temperature | -25~+70℃ |
| Relative humidity | +20℃ 98% |
| Vibration freq. atthe fixed position | 3G, 1～50Hz amplitude 0.5mm |
| concussion | (60～100) time/minute、Acceleration≤4g |
| Altitude | 2000m |
| Installation direction | Random |
| International protection | IP40 (According IEC60947) |
| Availability | In Stock |
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| Country of Manufacture | United States |
For assistance with selecting the right components for your project, please use the appropriate form:
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Land Vehicle Worksheet |
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Marine Craft Worksheet |
