REA 200N

REA 200N
Combined IDMTL Overcurrent &
Earth Fault Relay

Availability: In stock


Combined IDMTL Overcurrent & Earth Fault Relay


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Microprocessor-based with highest accuracy

Mechanical Trip Button (MTB) fault indication system No requirement for auxiliary power supply for fault indication

- Safeguard against automatic reset before fault rectification

Curve selection in accordance with ANSI, IAC, IEC, 1.3/10

• Normally Inverse (Nl)

• Very Inverse (VI)

• Extremely Inverse (El)

• Short Time Inverse (STI)

• Moderate Inverse (Ml)

- Trip value recording (4-memory)

- Date & time stamping for tripping Integrated surge arrester against transient overvoltages High set mode is incorporated for instantaneous protection

- Tamper-proof design for settings protection

- Serial interface RS485 for Modbus RTU communication (optional)

- Type tested for EMC compliance in acc. with IEC 61000 High immunity to electrical interference (tested to 2.5GHz)

- Type tested in acc. with IEC 60255*


Characteristics Curve

Time Current Characteristics in accordance with IEC 60255





Power supply

AC / DC 85 - 265V (other voltages available on request)

Operating frequency


Earth Fault setting

2-50% (0.1% per step)

Overcurrent setting

20 - 200% (1% per step)

Time   Multiplier

Overcurrent   / Earth Fault IDMTL

0.03 - 2.0 (IEC, 1.3), 0.3 -   20.0 (ANSI, IAC)

Time setting range (DTL)

0.03 - 2.0 sec

Instantaneous Mode (High-set)

2 -10 * setting current

Pick-up current

100 -115% of the setting   current

Reset current value

<90% of the operating value

Operating and storage   temperature range

Operating -10°C to 55°C Storage and transit -20°C to 65°C

Relative humidity (IEC   60068-2-30)

95% at +40°C

Degree of protection (IEC   60529)


Voltage withstand (IEC   60255-5)

2kVrms for 1 min between all case terminals connected together and the case earth terminal

2kVrms for 1 min between independent circuit including contact circuits

Overcurrent withstand

20 * 1 rated for 3 sec (100A-0/C, 20A-E/F)

Power Consumption

Approximately 2VA

Operational life expectancy

Electrical: > 1 x 10s   operations

Output contact

Mechanical: > 5 x 106   operations AC 250V 5A

Optional output contact

2 separate contacts - AC240V   5A, DC 24V 5A - E/F & O/C indication Communication: RS485

LED status indication

(Normal operation) (Fault current detected)

Safety feature

Mechanical Trip Button (MTB)

Housing material

ABS resin complying with   UL94VO

Unit weight

Approximately 600g

Compliance   with standards

IEC/EN 60755

General rules for residual-current protection devices

IEC/EN 61000-4-2

Electrostatic-discharge immunity test

IEC/EN 61000-4-3

Radiated, radio-frequency, electromagnetic-field immunity test (type tested to 2.5GHz)

IEC/EN 61000-4-4

Electrical fast transient/burst immunity test

IEC/EN 61000-4-5

Surge immunity test

IEC/EN 61000-4-6

Immunity to conducted disturbances, induced by radio-frequency fields

IEC/EN 60255-1

Measuring relay and protection equipment

IEC/EN 60255-5

Insulation coordination for measuring relays and protection equipment - Requirement and tests

IEC/EN 6472-2

Low voltage switchgear and   control gear, Part 2: Circuit breakers, Annex M and J