MSP: MK300A-240A- Relay bảo vệ dòng rò
Giá bán: 2.250.000₫
S.Lượng :
Giá trên đã bao gồm VAT 10%

* Mã sản phẩm : MK300A-240A

I. Features for MK 300A / 300EA
• Numerical earth leakage relay
• Programmable current sensitivity and time delay
• Detection of no connection to ZCT
• Relay trip indicator
• Relay alarm indicator
• Real-time leakage current display
• 50% pre-fault indicator
• Leakage fault current recording
• Standard DIN 96x96mm panel mounting
• Protected against nuisance tripping
Features for MK 300EA only
• Positive safety output contact
• Pre-fault alarm contact
• Remote reset function
II. Technical Data
1.AUXILIARY SUPPLY
Model MK300A / 300EA -230A : 184 ~ 276 V AC
Model MK300A / 300EA -110A : 94 ~ 127 V AC
Rated frequency : 50 Hz
VA rating : 3 VA typical
2.SETTING
Sensitivity adjustment : 30mA, 50mA,
0.10~1.00A(Step=50mA)
1.00~10.0A (Step=1.00A)
Time delay adjustment : Instantaneous,
0.1~3.0sec (Step=0.1s)
3.PERFORMANCE
Setting accuracy : -15% to +0%
Timing accuracy : ±5%
4.RECORD
Fault record : 3 latest tripped fault
currents or “tSt” for
manual test trip
Storage : Non-volatile memory
5.INPUT
Remote Reset : N.O. dry contact *
6.OUTPUTS
Trip contact : Activated during leakage
trip, manual test trip or
ZCT connection error
Positive safety contact*: Activated when powerup
and relay function
correctly
Alarm contact* : Activated when
measured leakage
current exceeded 50%
of IΔn.
7.OUTPUT CONTACTS
Rated voltage : 250 V AC
Contact rating : 5 A (NO)
3 A (NC)
Expected electrical life : 100,000 operations at
rated current
Expected mechanical life : 5 x 106 operations
8.INDICATORS
Pre-fault alarm : Red indicator
(Normal blink)
Time delay : Red indicator
(Fast blink)
Leakage trip : 7-segment display
and red indicator
ZCT connection error : 7-segment display
and red indicator
Real-time leakage current : 7-segment display
9.ZERO - PHASE CURRENT TRANSFORMER
To operate with Mikro’s ZCT series of current
transformer
10.MECHANICAL
Mounting : Panel mounting
Dimension (mm) : 96(w) x 96(h) x 90(d)
Enclosure protection : IP54 at the panel
Approximate weight : 0.4 kg (excluding ZCT)
Relay bảo vệ dòng rò
2.350.000₫
Relay bảo vệ dòng rò
1.700.000₫
Relay bảo vệ dòng rò
4.500.000₫
 
 
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