Electronic relay for monitoring the presence and voltage level in single-phase lines. The relay measures the true effective voltage value (True RMS) present on the line.
This relay associated with contactors or MCB circuit breaker switches allows the protection of machine or electrical installations against surges and sub-voltages. Avoiding the serious problems and breakdowns that can occur.
The relay is microprocessor controlled and the adjustment is enhanced by potentiometers located in the front in a very simple way.
The relay allows the following parameters to be monitored:
- Presence of tension
- Maximum voltage level
- Minimum voltage level
- Duration of time that the voltage is not between the adjusted levels.
operation:
The output relay R is connected if the supply voltage is between the maximum and minimum value, and exceeds the adjusted delay time.
LED indication:
- A (green) Voltage to be monitored
- Green LED off: No presence of supply voltage.
- Illuminated green LED: Indicates supply voltage presenia.
- R (Red) monitoring status
- Red LED off: Out-of-range monitoring voltage, indicates that the voltage is higher or lower than the adjusted levels.
- Red LED flashing: Out-of-range monitoring voltage, but has not exceeded the setting time.
- Red LED illuminated: Correct monitoring voltage.
specifications:
- Manufacturer/Supplier: Denor
- Model: GRV8-02 A220
- Function: Voltage monitor relay
- Supply voltage: controlled voltage, 230Vac
- Nominal consumption: 5VA
- Nominal frequency: 45-65 Hz
- Start-up time: 500ms
- Overvoltage category: III (according to IEC 60664-1)
- Allowable impulse voltage: 4 kV
- Measurement magnitudes: 180..260Vac (48...63Hz)
- Measurement mode: True effective value (True RMS)
- Measurement input: N-L, L-L
- Maximum U threshold value: 260Vac
- Minimum U threshold value: 180Vac
- Hysteresis: fixed, approx. 3%Reset time: 1000 ms
- Temperature range: -20oC. +50oC.
- Temperature coefficient: 0.05%oC, at-20oC.
- Shooting time: adjustable between 0.1s.. 301
- Green LED ON: Power supply (relay in service)
- Red LED: Monitoring voltage status
- Mounting: Rail DIN
- Installation mode: Anyone
- Degree of protection:
- Front: IP40
- Terminals: IP20
- Dimensions: 90x18x64mm
- Weight: 64g
- Regulations: EN60255-1, IEC60947-5-1
Output circuit:
- Number of switched contacts: 1 SPDT communicated contact
- Rated voltage: 250Vac/24Vdc
- Maneuverability: 10A/250Vac. AC1 category
- Minimum DC output contact power: 500mW
- Mechanical durability: 10x10⁶ manoeuvres.
- Electrical durability: 1x10⁵ manoeuvres.
dimensions
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