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Earth Leakage Relays |
Fixed Types (Type A) |
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Earth Leakage
Relays (Fixed) Type A
ELRF0030, 0100 and 0300
|
Type ELRF Earth
Leakage Relay (Fixed) - Type A |
|
Dims: (mm)
H.85 x W.70 x D.63.5 |
Type No |
ELRF0300 |
ELRF0100 |
ELRF0030 |
|
Function |
Fixed - Type A |
Fixed - Type A |
Fixed - Type A |
|
Supply Voltage Un |
110, 115, 220/240V
AC 50/60Hz |
110, 115, 220/240V
AC 50/60Hz |
110, 115, 220/240V
AC 50/60Hz |
|
Sensitivity IΔn |
300mA |
100mA |
30mA |
|
Range |
- |
- |
- |
|
Time Delay |
Instantaneous |
Instantaneous |
Instantaneous |
| LED
Indication |
Tripped indication |
Tripped indication |
Tripped indication |
| |
- |
- |
- |
| |
- |
- |
- |
|
Test/Reset Facility |
Local Only |
Local Only |
Local Only |
|
Output |
SPDT Relay |
SPDT Relay |
SPDT Relay |
|
Output Rating |
8A @ 250V AC |
8A @ 250V AC |
8A @ 250V AC |
| 50%
Fault Level Output |
- |
- |
- |
|
Adjustment Cover and Tamperproof Seal |
No |
No |
No |
|
Ratio |
- |
- |
- |
|
Internal Dimension |
- |
- |
- |
|
Type ELRF Key Features |
 |
Designed to monitor and detect earth
currents using separate toroid. |
|
|
Fixed sensitivity of 30mA, 100mA or
300mA |
|
|
"Test" button for simulation of
fault condition. |
|
|
"Reset" button for clearing of fault
condition. |
|
|
SPDT relay output |
|
|
LED indication of fault condition
after unit has tripped. |
|
Type
ELRF Connection Diagram |
 |
|
Installation and Setting
* Before Installation, Isolate the Supply.
- Connect the unit as shown in the diagram above.
- Apply power. The output
relay will remain de-energised.
- The output relay will energise if:
(a) The fault current level exceeds the fixed trip level (IΔn)
(b) There is a failure of
the connection between the relay and the toroid
Fault Simulation
- Pressing the "Test" button allows a fault
to be simulated. The output relay will operate accordingly.
- Pressing the "Reset" button after a fault
has occurred restores the unit back to its normal operation. (Note that
the relay can also be reset by removing then re-applying the supply).
Note: The operating function of this unit is
classed as a Type A
 for which
tripping is ensured for residual sinusoidal alternating currents and
residual pulsating direct currents, whether applied suddenly or slowly
rising. Additionally, this unit is protected against nuisance tripping
 |
|
Type ELRF Mounting Details |
|
 |
|
Specifications Type No. ELRF Series Earth Leakage
Relay |
|
Supply Voltage Un: |
220/240V AC, 50/60Hz |
|
Residual Voltage: |
500V AC maximum |
|
Supply Variation: |
90 to 110% of Un |
|
Isolation: |
Over Voltage CAT III |
|
Power Consumption: |
≈ 5VA |
| |
|
|
Sensitivity IΔn
(mA): |
30,100 or 300mA (Note:*see below) |
|
Range: |
- |
|
Time Delay: |
Instantaneous |
| |
- |
|
Memory: |
Storage of the leakage fault and reset with "reset"
button. |
|
Toroid withstand capacity: |
50kA for 200mS |
|
Distance between Toroid and Relay: |
50 meters (max.) |
|
Ambient Temperature: |
-5°C to +60°C |
|
|
-5°C to +40°C (in accordance with
IEC 60755) |
|
Relative Humidity: |
+95% |
| |
|
|
Output: |
SPDT Relays |
|
Output Rating: |
AC1 250V AC, 8A
(2000VA) |
|
|
AC15 250V AC, 2.5A |
|
|
DC1 25V DC, 8A
(200W) |
|
Electrical Life: |
≥ 150,000 ops at rated load |
|
Fault Level Output: |
10W max. (resistive) @ Un (50% of IΔn) |
|
Housing |
Grey Flame Retardant Lexan UL94 VO |
|
Weight |
≈ 190g |
|
Mounting Option: |
On to 35mm symmetric DIN Rail to
BS5584:1978 |
|
|
(EN50 002, DIN 46277-3) |
|
Terminal Conductor Size: |
≤ 2.5mm²
stranded |
|
|
≤ 4mm²
solid |
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Conforms To: |
IEC 60755, 50081-1, 50081-2, 50082-1 and 50082-2 |
|
Approvals: |
CE Compliant |
|
Note: *
Please state sensitivity when ordering. The suffix which should follow
ELRF is 0030 (30mA),
0100 (100mA) or 0300 (300mA). Example: ELRF-0300
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