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Earth Leakage Relay : bảo vệ dòng rò của Mikro (Malaysia) được sử dụng rộng rãi trong hệ thống điện công nghiệp. Sử dụng kết hợp với ZCT của Mikro.
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MÃ HIỆU
(MODEL)
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THÔNG SỐ KỸ THUẬT CHÍNH
(MAIN FEATURES)
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MK300
MK300E
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- Numerical earth leakage relay
- Programmable current sensitivity and time delay
- Built-in digital harmonic filter
- Detection of no connection to current transformer
- Real-time leakage current display
- Leakage current recording when tripped
- Complies with IEC755 standard
FEATURES FOR MK300E ONLY
- 50% pre-fault output contact
- Positive safety output contact
- Remote test and remote reset functions
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MK330
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- Numerical self-reclosing earth leakage relay
- Programmable current sensitivity and time delay
- Programmable number of reclosing
- Programmable time delay before reclosing
- Programmable automatic reset time
- Built-in digital harmonic filter
- Detection of no connection to current transformer
- External test and external reset of dry contact inputs
- Tripping contact output
- Alarm output
- Real-time leakage current display
- Relay tripped indicator
- Leakage current recording when tripped
- Complies with IEC 755 standard
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MK301A
MK302A
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- Trip starting indicator
- Detection of no connection to current transformer for extra safety
- Relay tripped indicator
- High immunity to electrical interference
FEATURES FOR MK302A ONLY
- Safety output contact
- Earth leakage level indicators
- Remote test and remote reset functions
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DIN300
DIN300E
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- 25 selectable sensitivity settings: 30 mA to 30 A
- 9 selectable time delays: 0ms to 3s
- Earth leakage level indicators
- Detection of no connection to ZCT
- Relay tripped indicator
- Trip starting indicator
- Protected against nuisance tripping
FEATURES FOR DIN300E ONLY
- 50% pre-fault output contact
- Remote test and remote reset functions
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DIN310
DIN310E
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- Numerical earth leakage relay
- Detection of no connection to ZCT
- Relay trip indicator
- Relay alarm indicator
- Real-time leakage current display
- Leakage fault current recording
- 50% pre-fault indicator
- Standard DIN rail mounting
- Protection against nuisance tripping
- Type A
FEATURES FOR DIN310E ONLY
- Positive safety output contact
- 50% pre-fault output contact
- Remote reset function
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DIN330
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- Numerical self-reclosing earth leakage relay
- Programmable current sensitivity and time delay
- Programmable dead time and number of shots
- Programmable permanent fault time and reclaim time
- Programmable lockout auto reset time
- Incorporated positive safety feature into trip contact
- One programmable contact for flexibility
- Detection of no connection to ZCT
- Relay trip indicator
- Relay alarm indicator
- Real-time leakage current display
- Leakage fault current recording
- Remote reset function
- Standard DIN rail mounting
- Protection against nuisance tripping
- Type A
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ZCT
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- Sử dụng ZCT kết hợp với các relay bảo vệ dòng rò kể trên
- ZCT40S - 40mm inner diameter
- ZCT60S - 60mm inner diameter
- ZCT80S - 80mm inner diameter
- ZCT120S - 120mm inner diameter
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Mikro (Relay bảo vệ) 
