Monitoring relays RPN-.VM.-A400

Technical info

Histeresis mode. Adjustment of tripping delay. Cadmium - free contacts 1 CO and 2 CO. AC input voltages. Cover - modular, width 17,5 mm. Direct mounting on 35 mm rail mount acc. to EN 60715.

Technical data

Output circuit - contact data

Number and type of contacts

1CO, 2CO

Contact material

AgSnO2

Max. switching voltage

300 V AC

Input circuit

Supply voltage AC

= monitoring voltage

Rated voltage

RPN-.VM-...: ≤ 1,5 W

RPN-.VMN-...: ≤ 1,3 W

Range of supply frequency AC

48...63 Hz

Meassuring circuit

Functions

MINMAX - phase monitoring

SEQ - phase sequence monitoring

histeresis mode

Ranges of voltage

MIN - smooth adjustment: 75...95%

MAX - smooth adjustment: 105...125%

Time ranges of tripping delay

step adjustment: (0,1 s; 1 s; 2 s ¸); 3 s; 4 s; 5 s; 6 s; 7 s; 8 s; 9 s

Insulation

Rated surge voltage

4 000 V AC    1,2/50μs

Insulation rated voltage

500 V AC

Overvoltage category

III 

General data

Mechanical life

> 3 x 107

Electrical life

> 0,5 x 10 12 A, 6 A, 250 V AC 

Ambient temperature - operating

-20...+60 oC

Functions

Minimum voltage monitoring (with delayed disconnection of contact R). If the voltage on one of the phases drops below the threshold Umin, then the time T2 - switching off of the operational relay R - starts timing out. At the same time the red diode E slow flashes. When time T2 elapses, the red diode E lights up permanently and the operational relay R is switched off. If the voltage on a given phase exceeds the voltage Umin increased by the value of hysteresis, then the red diode E goes off and the operational relay R is switched on.

Maximum voltage monitoring (with delayed disconnection of contact R). If the voltage on one of the phases rises above the threshold Umax, then the time T2 - switching off of the operational relay R - starts timing out. At the same time the red diode E fast flashes. When time T2 elapses, the red diode E lights up permanently and the operational relay R is switched off. If the voltage on a given phase is lower than voltage Umax minus the value of hysteresis, then the red diode E goes off and the operational relay R is switched on.

Phase failure monitoring (without delay for disconnection of contact R). A drop in any of the phases below the threshold Uoff = 0,6 Un (rated voltage) will immediately light up red diode E and immediately switch off the operational relay R.

SEQ - Phase sequence monitoring (without delay for disconnection of contact R). If all the phases are connected to the terminals in the correct sequence (L1->L1, L2->L2, L3->L3) or in a consecutive sequence, then the operational relay R switches on. When the phase sequence changes, red diode E lights up immediately and the operational relay R is immediately switched off.

MINMAX - Voltage monitoring between Umin and Umax values. When phases L1, L2, L3 are switched on - when the voltages of all phases are between the thresholds Umin and Umax, after approximately 500 ms (time T1) the green diode U lights up and the operational relay R is switched on.

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