3UG4512-2BR20 Siemens Line Monitoring Original Brand New
$97.98
3UG4512-2BR20
Siemens 3UG5512-2BR20 phase failure and sequence 3×160-690 V 2 CO analog monitoring relay phase failure and sequence 3 x 160…690 V 50…60 Hz AC 2 changeover contacts spring-loaded connection system
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Overview
Electronic line monitoring relays provide maximum protection for mobile machines and plants or for unstable networks. Network and voltage faults can thus be detected early and rectified before far greater damage ensues.
Depending on the version, the relays monitor phase sequence, phase failure with and without N conductor monitoring, phase unbalance, undervoltage or overvoltage.
Phase asymmetry is evaluated as the difference between the greatest and the smallest phase voltage relative to the greatest phase voltage. Undervoltage or overvoltage exists when at least one phase voltage deviates by 20 % from the set rated line voltage or the directly set limit values are overshot or undershot. The rms value of the voltage is measured.
With the 3UG4617 or 3UG4618 relay, a wrong direction of rotation can also be corrected automatically.
Note:
We recommend the use of SIRIUS 3UG5 line monitoring relays for new applications. They are superseding the 3UG4 devices, see SIRIUS 3UG5 monitoring relays for stand-alone installation -> Line monitoring.
Benefits
- Can be used without auxiliary voltage in any network from 160 to 630 V AC worldwide thanks to wide voltage range
- Variably adjustable to overshoot, undershoot or range monitoring
- Freely configurable delay times and RESET response
- Width 22.5 mm
- Permanent display of actual value and network fault type on the digital versions
- Automatic correction of the direction of rotation by distinguishing between power system faults and wrong phase sequence
- All versions with removable terminals
- All versions with screw or spring-loaded terminals
3UG4512-2BR20
Siemens 3UG5512-2BR20 phase failure and sequence 3×160-690 V 2 CO analog monitoring relay phase failure and sequence 3 x 160…690 V 50…60 Hz AC 2 changeover contacts spring-loaded connection system
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| Weight | 0.140 kg |
|---|---|
| Dimensions | 29.00 × 99.00 × 107.00 mm |
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