COMADAN
Load guard RP81
C-mac® module type RP81 is used for load monitoring of 3-phase motors, as the phase angle (cos ) between motor current and -voltage changes in proportion to the mechanical load of the motor. You will see the biggest change in phase angle, if the motor is loaded between 0 and 60% of nominal load, which makes the RP81 suitable for monitoring of V-belts, pumps running dry, etc.
RP81 can be connected directly to motors with nominal current up to 6 A. If the current is bigger, you use a standard current transformer .
- Load guard for 3-phase motors
- Power factor metering
- Adjustable time delay 0-20 sek. at motor start
- Selectable release of relay at max. or min. load
- 1-pole relay output 8A / 250 VAC
Selected variant
Specifications
| Approvals | CE |
|---|---|
| Depth | 74 mm |
| Frequenze | 40-70Hz |
| Height | 76 mm |
| Materials Cover | Noryl |
| Measuring Range | 0,5-6A |
| Power supply V AC | 400 V AC |
| Temperature range from | -20 °C |
|---|---|
| Temperature range to | 60 °C |
| Time Delay Start | 0-20 s |
| Weight | 110 g |
| Width | 38 mm |
Downloads
Product description
C-mac® module type RP81 is used for load monitoring of 3-phase motors, as the phase angle (cos ) between motor current and -voltage changes in proportion to the mechanical load of the motor. You will see the biggest change in phase angle, if the motor is loaded between 0 and 60% of nominal load, which makes the RP81 suitable for monitoring of V-belts, pumps running dry, etc.
RP81 can be connected directly to motors with nominal current up to 6 A. If the current is bigger, you use a standard current transformer .
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