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PRODUCT
power quality management
power measurement
power factor correction
protection and control
 
 
Phase Failure Relays

MKS-MKC Series
Summary
Overheating and damage of 3-phase motor due to phase fault is one of the common faults faced by industrial plants. Thermomagnetic relay, an important component of motor protection, is too slow to ensure fault tripping because of its electromechanical structure and high current setting range. The design of MKS-MKC series relays eliminates these negative effects.
¡ñEnvironmental working temperature: - 5/50 ¡ãC
¡ñNon-flammable case
¡ñTrack Installation or Panel Installation
¡ñProtection Level: IP20
¡ñEC 60255-3, EC 60255-6, EC 60870-5, EC 60529

 
Product Selection Table
Phase Fault Relay
phase sequence fault
PTC protect
fixed Out-off-balance
Adjustable Out-off-balance
No zero line
Interruption delay
Turn off delay
1 C/O contact
1 N/O contact
DIN1 Track installation
DIN2 Track installation
Pieces / boxes
Product code
MKC-01
Phase Fault Relay
¡ñ
¡ñ
¡ñ
¡ñ
10
MKS-01
Phase Fault Relay
¡ñ
¡ñ
¡ñ
¡ñ
10
MKC-03
Phase Fault Relay
¡ñ
¡ñ
¡ñ
¡ñ
¡ñ
10
MKS-03
Phase Fault Relay
¡ñ
¡ñ
¡ñ
¡ñ
¡ñ
¡ñ
10
PMKC-04
Phase Fault Relay
¡ñ
¡ñ
¡ñ
¡ñ
¡ñ
¡ñ
10
MKC-05
Phase Fault Relay
¡ñ
¡ñ
¡ð
¡ñ
¡ñ
¡ñ
¡ñ
10
MKC-05P
Phase Fault Relay
£¨With PTC3£©
¡ñ
¡ñ
¡ñ
¡ð
¡ñ
¡ñ
¡ñ
¡ñ
10
MKC-06
Phase Fault Relay
¡ñ
¡ñ
¡ð
¡ñ
¡ñ
¡ñ
¡ñ
¡ñ
10
MKC-06P
Phase Fault Relay
£¨With PTC3£©
¡ñ
¡ñ
¡ñ
¡ð
¡ñ
¡ñ
¡ñ
¡ñ
¡ñ
¡ñ
10
PTC-3
Three Thermistor Groups
50
MKC-20
Phase Fault Relay
¡ñ
¡ñ
¡ð
¡ñ
¡ñ
10
¡ð May close

Protect characteristics
1. Phase fault
When the monitored 3-Phase Voltage is valid, output Relay is ON, and if any of the three Relays fails, the output device immediately shuts down.
2. phase sequence
When the phase sequence is correct (L1, L2, L3 clockwise), the output Relay is ON (that is, start), and if the phase sequence is changed for any reason, the output Relay is immediately closed.
3. PTC protection
If the coil temperature in the motor exceeds Tc, PTC temperature limit (see PTC-3 below), output Relay is immediately closed.
4. Fixed Voltage Out-off-balance
When the phase Voltage Out-off-balance is larger than the fixed value (20% or 40%), the output Relay is closed within 0,2 second.
5. Adjustable Voltage Out-off-balance
When the interphase Voltage Out-off-balance is less than the user adjustment value, output Relay starts (ON).
If the Out-off-balance value exceeds the user settin limit (5%-15%), output Relay closes at the end of the user settin¡¯s delay time (0,1... 10s).
If the failure disappears within the delay time, the output Relay does not close and the motor continues to work normally. In addition to these features, MKC-05P Relay is also turned on when R-phase Voltage exceeds 178 V AC. Its phase sequence and Out-off-balance LED flicker at the same time.

MKS-01
MKS-03
MKC-01
MKC-03
MKC-04
MKC-05
MKC-05P
MKC-06
MKC-06P
MKC-20
Shell
size
PK22
PK25- PK280
PK22
weight
0,1kg/24Carton / boxes
0,3kg/10Carton / boxes
0,1kg/10Carton / boxes
measure
Voltage Out-off-balance
20% fixed
40%  fixed
20% fixed
40% fixed
5%-15%Adjustable
5%-25%Adjustable
Power Supply
working voltage
230VAC
400VAC
230VAC
220VAC
400VAC
380VAC
230VAC
working frequency
50/60 Hz
Scope of work
¡À20%Un
¡À10%Un
¡À30%Un
¡À10%Un
¡À30%Un
¡À10%Un
¡À30%Un
output
Output contact
1NO,8A,2000VA
1CO,8A,2000VA
1CO 5A,1250VA
delay time
0,2 sec. fixed
0,1-10 secAdjustable
0,1-20 sec.Adjustable
environment condition
ambient temperature; humidity
5/+55¡æ;90%
Overvoltage category
III
Connect
install
Track installation
line type
3-Phase+Zero line
3-Phase
3-Phase+Zero line
3-Phase
3-Phase bit+Zero line
 
 



WEBSITE
PRODUCT
ENTES Electric Co., Ltd.

http://www.cnentes.com

International station£º
http://www.entes.com.tr
http://www.entes.org.cn

Add£º16th floor, first Shanghai plaza, 19 east gaolang road,Xinwu District,Wuxi City,Jiangsu Province,China
Contact£ºMiss Yu
Mobile£º018961828820
Tel£º086-0510-85026586
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