Page 110 - EPR Catalog 2015

Three-phase monitoring relays
Technical data

Type CM-PSS.31 CM-PSS.41 CM-PVS.31 CM-PVS.41 CM-PVS.81 CM-PAS.31 CM-PAS.41

Input circuit = Measuring circuit L1, L2, L3

Rated control supply voltage US = measuring voltage 3x380 V AC 3x400 V AC 3x160- 3x300- 3x200- 3x160- 3x300-
300 V AC 500 V AC 400 V AC 300 V AC 500 V AC

2 Rated control supply voltage US tolerance -15...+10 %
Rated frequency 50/60 Hz

Frequency range 45-65 Hz

Typical current / power consumption 25 mA / 25 mA / 25 mA / 25 mA / 19 mA / 25 mA / 25 mA

18 VA 18 VA 10 VA 18 VA 10 VA 10 VA /18 VA

(380 V AC) (400 V AC) (230 V AC) (400 V AC) (300 V AC) (230 V AC) (400 V AC)

Measuring circuit L1, L2, L3
Monitoring functions Phase failure ½ ½ ½ ½ ½ ½ ½

Phase sequence can be switched off ½½

Automatic phase sequence - - - - - - -
-
correction
Over- / undervoltage ½ ½ ½ ½ ½ -

Phase unbalance - - - - - ½ ½

Measuring range Neutral - - - - - --
Overvoltage 3x418 V AC 3x440 V AC 3x220- 3x420- 3x300- --
300 V AC 500 V AC 400 V AC
Undervoltage 3x342 V AC 3x360 V AC --
3x160- 3x300- 3x210-
Phase - - 230 V AC 380 V AC 300 V AC 2-25 % of average
unbalance of phase voltages
- - -

Thresholds Overvoltage fixed adjustable within measuring range --
adjustable within measuring range --
Undervoltage fixed --- adjust. within meas.
range
Phase unbalance - - --- -
fixed 20 %
(switch-off value)
ON- delay
Hysteresis related to Over- / undervoltage fixed 5 % 0; 0.1-30 s adjustable
--
the threshold value Phase unbalance - -
Details see function
Rated frequency of the measuring signal 50/60 Hz description / -diagrams

Frequency range of the measuring signal 45-65 Hz

Maximum measuring cycle time 100 ms

Accuracy within the rated control supply voltage tolerance ͬU ͨ 0.5 %

Accuracy within the temperature range ͬU ͨ 0.06 % / °C

Measuring method True RMS

Timing circuit

Start-up delay tS fixed 200 ms - - < Ȁ 0.2 %
Tripping delay tV
ON- or OFF-delay 1 yellow LED, 2 red LED's
Repeat accuracy (constant parameters) 0; 0.1-30 s adjustable Details see operating mode and
Accuracy within the rated control supply voltage tolerance -- function description / -diagrams
Accuracy within the temperature range ͬt ͨ 0.5 %
Indication of operational states ͬt ͨ 0.06 % / °C

Details see function
description / -diagrams

Output circuits 15-16/18, 25-26/28

Kind of output relay, 2 x 1 c/o contact
Operating principle closed-circuit principle 1)
Contact material AgNi alloy, Cd free
Rated operational voltage Ue IEC/EN 60947-1 250 V

Minimum switching power 24 V / 10 mA
Maximum switching voltage see „Load limit curves“ on page 127

1) Closed-circuit principle: Output relay(s) de-energize(s) if measured value exceeds or falls below the adjusted threshold value

2/43 ABB | Catalog Electronic Products and Relays 2015 | 2CDC 110 004 C0210