THREE PHASE VOLTAGE MONITORING RELAY RNPP-301
Product Details:
| Voltage Type | AC |
| Voltage (V) | 240/415 |
| Number of Poles | 3 Pole & 4 Pole |
| Application | Three Phase Voltage & Contactor Output Monitoring |
| Current (Amps) | 5A @ 250V AC |
| Brand | NOVATEK ELECTRO |
| Contact Form | SPDT (1NO + 1NC) |
| Type | Under voltage, Over voltage, Phase loss, Phase imbalance, Reverse phase sequence protection & Output monitoring |
RNPP-301 voltage monitoring relay is designed for protection of three-phase loads against major type of mains faults, as:
- RMS voltage reaching beyond admissible thresholds
- Phase sequence order violation and phase coincidence
- Violation of the mains voltage phase completeness and symmetry
The device performs monitoring the main circuit parameters and de-energizes load when the parameters fall beyond specified boundaries. The relay also tracks the status of magnetic starter power contacts at no-load and under load while monitoring their operability (burning or sticking).
The front panel LEDs display the following:
- Presence of voltage in the mains
- Load status (ON/OFF)
- Type of fault
Six variable pot knobs on the front panel allow for setting:
- The maximum allowable voltage tripping threshold
- The minimum allowable voltage tripping threshold
- Allowable phase imbalance threshold
- Tripping time delay for load de-energizing in case of emergency voltage reduction
- Tripping time delay for load de-energizing in case of other circuit faults
- Time delay for load re-energizing after the circuit parameters recovery
The device can function a phase- or line- voltage monitor (user-selected). Three modifications of this device are currently produced.
Additional Information:
- Item Code: RNPP-301
- Port of Dispatch: New Delhi, India
Technical brief:
| Rated phase/line voltage, V | 240/415 |
| Mains frequency, Hz | 45-55 |
| Harmonical configuration (nonsinusoidality) of power supply voltage | EN 61000-3-2 (IEC 1000-3-2) |
| Adjustable range for Umin, % of nominal value | 5-25 |
| Adjustable range for Umax, % of nominal value | 5-25 |
| Adjustable range for phase imbalance/asymmetry, % | 5-20 |
| Adjustable range for Tmin, sec | 0-20 |
| Adjustable range for Toff, sec | 0-10 |
| Adjustable range for Ton, sec | 0-600 |
| Minimum trip delay when threshold settings are reached, sec | 0.1 |
| Reset/energization delay when the relay energizes, sec, not more than | 0.2 |
| Voltage hysteresis, V | 5-6 |
| Accuracy of trip threshold for voltage, V, not more than | 3 |
| Phase imbalance accuracy, %, not more than | 1.5 |
| Safe operating voltage, % of rated value | 30-110 |
| Power required (under load), VA, not more than | 3.0 |
| Maximum switched current of output contacts, A | 5 |
Output contacts life:
| 100000 1 mln. |
Protection degree of:
| IP40 IP20 |
| Permissible contamination level | II |
| Overvoltage category | III |
| Nominal voltage of isolation, V | 450 |
| Rated impulse withstand voltage, kV | 4 |
| Cross-section area of connection terminals, mm² | 0.5-2 |
| Maximum torque of terminal fixing, N*m | 0.4 |
| Operating temperature range, °C | from -35 to +55 |
| Weight, no more than, kg | 0.200 |
| Case dimensions 4 modules of S-type | |
| Mounting 35 mm DIN-rail | |
| Mounting position as desired | |
RNPP-301 complies with requirements:
IEC 60947-1:2004, ІDТ; ІEC 60947-6-2:1992, ІDT; CISPR 11:2004, IDT; IEC 61000-4-2:2001, IDT