FANOX ELR-3B Instruction Manual

INSTRUCTION MANUAL
Type B Earth Leakage Relay
Display and LED functions
Thanks to LCD display, the user can view very quickly the measurements,
the alarms and can access to all settings
• Green: detected current lower than threshold
• Yellow: detected current higher than ALARM threshold but lower than
TRIP threshold
• Red:
- detected current higher than ALARM threshold and relay activation
- open residual current transformer circuit (or not connected)
- current leakage readinf off scale
- TEST, causes tripping of the relay
Order codes
Code
Type
ELR-3B
41032
WARNING!
• Carefully read the manual before the installation or use.
• This device is to be installed by qualified personnel, complying to current
standards, to avoid damages.
• Before any maintenance operation on the device, remove supply inputs.
• The manufacturer cannot be held responsible for electrical safety in
case of improper use of the equipment.
• Products illustrated herein are subject to alteration and changes without
prior notice.
Tripping set-point (I∆)
0,03-0,1-0,3-0,5-1-3 (A)
pag. 1 / 8
Description
• Earth leakage relay type B
• True RMS
• Modular DIN-rail housing, 3 modules
• Green power LED indicator (ON)
• External residual current transfomer CTB-1 series
• Fail safe function (settable)
• VIsualization of the differential current
• Backlighted LCD display
• On the front panel, TEST and RESET button
• Two indipendent progammable outputs (trip and prealarm)
Front keyboard
RESET key – To reset the relay after tripping
TEST key – Causes tripping of the relay
t
key – Used to select the tripping delay time
d
I key – Used to select the fault current to earth
d
Std/+ key at least 2 seconds – Positive safety activated or deactivated on
TRIP and ALARM relays
PROG key – Used to enter into prealarm relay menu setting (on the display will appears
ALARM)
∆ AUTO key (only ALARM menu setting) – Used to set the reset for prealarm relay (manual
or automatic)
Id key at least 2 seconds (only ALARM menu setting) – Used to set the prealarm's threshold
td key at least 2 seconds (only ALARM menu setting) – Used to set the prealarm delay time
Tripping time (t)
0,1-0,2-0,3-0,4-0,5-0,75-1-5-10 (s)
ELR-3B
Auxiliary supply
230VAC ±20% 50-60 Hz