84873401 Crouzet USA, 84873401 Datasheet - Page 135

• Manufacturer Part Number: 84873401
• Description: 3X400VAC FFP MOTOR LOAD CONTROL
• Manufacturer: Crouzet USA

Specifications of 84873401

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

For more information www.crouzet.com
UA1-A2
Dimensions
MCI
Connections
MCI
Principles
MCI
1
2
A1 - A2 : Power supply 110...240 VAC
A1 - A3 : Power supply 240 VAC
B
C
D
E
F
G
1
0
1
0
threshold
Relay
Amplitude of measured current
Hysteresis = Threshold - 15 %
Closed
Open
I
(+)
(-)
A2
A1
16,8
Ø 5,5
T1
U
82,2
I
43,7
A3
T2
5
R
3
T3
11
14
17,5
4,5
4
5
6
Operating principle
The relay contact (11 and 14) closes if the current is greater than the threshold.
The relay contact (11 and 14) opens if the current is less than 15 % (hysteresis) of the threshold.
Note :
Delay on pick-up (T1) 500 ms maximum. Response time to sensing (T2) 400 ms ± 50 %.
Response time to turn-off (T3) 120 ms ± 50 %.
The graduated set-point scale on the front relates to sinusoidal or delta current measurement. The
MCI can measure non-sinusoidal currents, for example currents subject to phase control. In this
case, the display may be affected by an error coefficient which is a function of the tripping angle of
the phase controller (form factor).
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