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To ensure accuracy, please note that images may be representative. Refer to the product data sheet for detailed specifications.
| Manufacturer | Schneider Electric |
| Manufacturer Product Number | RMNF22TB30 |
| Description | Phase Monitor Relay; 3-Phase; 2 Form C (DPDT) |
| Datasheet | Download Datasheet |
The Schneider Electric RMNF22TB30 is a 22.5 mm phase monitor relay with 2 Form C (DPDT) output and rated 8 A, 250 V AC max; 2000 VA, driven by a 208 to 480 V AC or 120 to 277 V AC, 50/60 Hz (not self-powered) input.
It watches all three phases for phase sequence, phase failure detection, overvoltage and undervoltage detection, overfrequency and underfrequency (45...66 hz adjustable), asymmetry, measuring true RMS (150 ms measurement cycle).
The undervoltage trip point covers 166 to 576 V adjustable (line to line); 96 to 332 V adjustable (line to neutral).
It drops out 0.1 s...60 min adjustable after an undervoltage.
It has 35 mm DIN rail mounting and screw terminals.
| Category | |
| Manufacturer | Schneider Electric |
| Monitoring Function | Phase sequence, phase failure detection, overvoltage and undervoltage detection, overfrequency and underfrequency (45...66 Hz adjustable), asymmetry |
| Number of Phases | 3-Phase |
| Sensing Method | True RMS (150 ms measurement cycle) |
| Input Voltage | 208...480 V AC or 120...277 V AC, 50/60 Hz (not self-powered) |
| Input Operating Range | 166.4...576 V AC line to line; 96...332.4 V AC line to neutral |
| Undervoltage Trip Range | 166...576 V adjustable (line to line); 96...332 V adjustable (line to neutral) |
| Overvoltage Trip | 166...576 V adjustable (line to line); 96...332 V adjustable (line to neutral) |
| Phase Unbalance Trip | Adjustable 5...150 V; 2...20% of selected Un |
| Trip Delay - Undervoltage (s) | 0.1 s...60 min adjustable |
| Trip Delay - Unbalance | 0.1 s...60 min adjustable |
| Status Indicator | Green LED: power on; Amber LED (R1, R2): relay energised (steady), timing (blinking); Red LED: alarm (phase failure, phase sequence, UV, OV, UF, OF, asymmetry) |
| Communication Protocol | NFC (13.56 MHz), EcoStruxure Industrial Device app |
| Contact Configuration | 2 Form C (DPDT) |
| Output Rating | 8 A, 250 V AC max; 2000 VA |
| Number of Poles | 2 |
| Mounting Type | 35 mm DIN rail |
| Termination Style | Screw Terminal |
| Module Width (mm) | 22.5 |
| Dimensions | 90 x 22.5 x 99 mm (3.5 x 0.9 x 3.9 in), H x W x D |
| Operating Temperature (Storage) | -30...+60 °C (-40...+70 °C) |
| Mechanical Life | 10,000,000 (100,000) |
| Approvals | CE, UL, CSA, CCC, EAC, RCM, UKCA |