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Earth Leakage Relay |
Type ELRV-10 |
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Earth Leakage Relay Type ELRV-10
|
ELRV Series Din Rail Mtg Earth Leakage Relay |
|
Dims: (mm)
H.85 x W.70 x D.63.5 |
Type No. |
ELRV-10 |
| Function |
Variable - Type A |
| Supply Voltage
Un |
220 to 240V AC, 50 to
60Hz |
| Sensitivity
IΔn |
30, 50, 75, 100mA (selectable) |
| Range |
x1, x10, x100 (selectable) |
| Time Delay |
Inst., 50, 250, 500mS |
| LED Indication |
Tripped Indication |
| |
Bargraph Indicating |
| |
% of Leakage Current |
| Test/Reset
Facility |
Local and Remote |
| Output |
2 x SPDT Relays |
| Output Rating |
8A @ 250V AC |
| 50% Fault Level
Output |
10W maximum @ Un |
| Adjustment
Cover and Tamperproof Seal |
Yes |
| Ratio |
- |
| |
- |
| Internal
Dimension |
- |
| External
Dimension |
- |
 |
Designed to monitor and detect
earth fault currents using separate toroid |
|
|
Selectable sensitivity and
time delay with tamper proof cover |
|
|
"Test Button" for simulation
of fault condition |
|
|
"Reset Button" for clearing of
fault condition |
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|
Remote operation of "Test" and
"Reset" buttons |
|
|
2 x SPDT relay output -
Standard output and positive safety output |
|
|
LED scale display of fault
level prior to tripping |
|
|
Type
ELRV-10 Function Diagram |
|
 |
|
Type
ELRV-10 Connection Diagram |
 |
Installation and Setting
- Before Installation, Isolate the Supply.
- Connect the unit as shown in the diagram above (N.B. certain
features may not be required and therefore do not need to be connected).
- Apply power and the "Positive Safety Output" relay will energise.
The relay will de-energise if:
(a) The fault current level exceeds the set trip level (IΔn)*
(b) There is a failure of
the connection between the relay and the toroid*
(c) The supply to the
relay is removed.
(d) The relay fails
internally.
(*) Causes the "standard output" relay to energise in response to the
fault condition.
- Prior to a fault occurring, the LED level display
will indicate the % of IΔn being detected (the display
is scaled between 5, 15, 30, 45, 60 and 75% of the set trip level). After
all 5 LED's have illuminated and the unit trips due to an excessive fault
current, the red
LED will illuminate.
- For remote indication of a fault occurring (when IΔn is @ 50% a lamp or
similar indicating device can be connected between terminals "1" and "2".
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
ELRV-10 Mounting Details |
|
 |
|
Specifications Type No. B1CVR Control 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*, 50, 75, 100 mA (selectable) |
|
Range: |
x1*, x10, x100 (selectable) |
|
Time Delay (t) : |
Instantaneous*, 50, 250, 500mS (selectable) |
| |
Note: The unit is
factory set to 30mA trip and instantaneous delay. Adjustments of these
settings is prevented by the tamperproof cover, which is sealed at the
factory. Access to the adjustments can only be made once the factory seal
is broken. A spare seal is supplied with the unit and should be fitted if
any adjustments are made. |
|
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: |
2 x 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 |
≈ 200g |
|
Mounting Option: |
On to 35mm symmetric DIN Rail to
BS5584:1978 |
|
|
(EN50 002, DIN 46277-3) |
|
Terminal Conductor Size: |
≤ 2.5mm²
stranded |
|
|
≤ 4mm²
solid |
|
Conforms To: |
IEC 60755, 50081-1, 50081-2, 50082-1 and 50082-2 |
|
Approvals: |
CE Compliant |
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