MH Digital Earth Leakage Relay EL 03D & 30D, Residual Current Device, Rated operating residual current 0.03 to 30A
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- Supplier: MUN HEAN SINGAPORE PTE LTD
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Product Overview
Description
Products Description
The MH EL 03D and EL 30D is a digital earth leakage relay with DIN rail mounting. It is designed to monitor and protect the low voltage distribution system through the use of a zero-sequence current transformer.
MH EL 03D and EL 30D are designed in accordance with IEC 60755 Type A & AC operation. It provides real-time communication via Modbus-RTU protocol, pre-alarm warning and comes with two output contacts.
Highlights of EL03 / EL30D
- Microprocessor-based with highest accuracy
- Earth Leakage Current protection
- IEC 60755 Type A and AC performance
- Extra secure test trip system
- Event records with date and time stamping
- Modbu-RTU RS485
- Configurable Pre-Fault Alarm Output
- Self diagnostic
- Optional Remote Reset Input
- Backlit high contrast LCD display
- Simple, compact and user friendly
- Fully type tested by accredited laboratory
Applications
Incoming feeder protection
Outgoing feeder protection
Earth Leakage Protection
Product Parameters
Characteristic | |||
Protection functions | Earth Leakage Protection | ||
Power Supply | AC/DC 85-265V (other voltages available on request) | ||
Operating frequency | 50 / 60 Hz | ||
Power consumption | ≤ 3.5VA | ||
Residual operating current setting | 0.03A to 3.00A in step of 0.01A (EL 03D) 0.3A to 30.0A in step of 0.1A (EL 30D) | ||
Configurable Pre-Alarm setting | 5-100% of residual operating current in step of 1% | ||
Definite time delay setting | 0.01-0.50 sec in step of 0.01 sec (0.01-5.00 sec available upon request) | ||
Operating temperature range | -10 to 55°C | ||
Relative humidity | <93%, non-condensing | ||
Degree of protection | IP54 (front) | ||
Output | Relay output | 2 x N/O (normally open) Contact #1 Tripping Contact #2 Trip/Pre-Alarm (Remote reset optional) | |
Contact rating | 5A at 250VAC | ||
Optional interface | RS485 Modbus RTU | ||
LED status indication | Red LED for tripped, Red blinking LED for ZCT input error | ||
Event Record | Four event records with tripped value, date and time stamping | ||
Housing material | ABS resin complying with UL94V0 | ||
Net weight | Approximately 200g | ||
Dimensions | 75mm (width) x 90mm (height) x 74mm (depth) | ||
Standard compliance | IEC60255, IEC 60755, CE Marking | ||
Connection Diagram
3P4W
3P3W
Company Profile
The Mun Hean Group
The Mun Hean group represents an extensive network throughout Asia providing technical solutions in industrial electrical as its core expertise. The group has offices in 10 regions; Singapore, Malaysia, Indonesia, Hong Kong, Philippines, Vietnam, Myanmar, Taiwan, Beijing and Shenzhen.
The core of Mun Hean’s business lies in industrial electrical technical marketing in four key areas;
- Power Quality;
- Electrical Protection;
- Lightning Protection;
- Industrial Electrical.
The group started from Mun Hean Singapore Pte Ltd which was established in 1981 and has long been the market leaders in industrial electrical marketing. The group is the exclusive agent for many leading international brands as shown in our Product Portfolio.
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