Manual Test - LEGRAND IME RDBMRCD24 Mode D'emploi

Type "B" MRCD differential relay
7. GENERAL FATURES
(continued)
Display:
3-digit LCD (1000 points)
Indicated value measurement error: ±17,5%, ±2 digits
LEDs:
ON: voltage present Us
AL1: pre-alarm IΔn 1
AL2: alarm, coil release IΔn 2
Display of the automatic instantaneous values:
- IΔn instantaneous
- Release threshold set IΔn 2
- Trip delay set IΔn 2
Programmable parameters:
- Release threshold IΔn 2: 0.03...3A
- Trip delay Δt 2: 0...10s
- Pre-alarm threshold IΔn 1: value 50...100% of IΔn2
- Trip delay Δt 1: 0...10s
- Password: 0...999 (default = 0)
MRCD (without connected switch)
SET=> Rated
residual operating 0,03A
current (I∆n)
SET=> Limiting non
0s 0,1s
actuating time
Non-operating time
0,1s
@ 2I∆n
Maximum break
23ms 0,24s
time @ 5I∆n
Control:

MANUAL TEST:

- It checks the efficiency of the earth leakage relay, including output
relays
- Local test: front T pushbutton
- Remote test: T/R external contact closing
long press
( >1,5 s)
MANUAL RESET:
- Local reset: front T pushbutton
- Remote reset: T/R external contact closing
(short press <1,5 s)
PERMANENT AUTOMATIC TEST:
- It checks the continuity of the earth leakage relay - toroid connection
Technical data sheet: IDP000262EN_06
0,05...3A
0,25s 0,5s 1s 2,5s
0,25s 0,5s 1s 2,5s
0,39s 0,64s 1,14s 2,64s
Updated: 02/09/2020
Code: RDBMRCD24 – RDBMRCD230
Model: Delta
7. GENERAL FATURES
Maximum dissipated thermal power for the thermal
dimensioning of the panels:
Operating room temperatures
- Min. = -25 °C Max. = +55 °C.
Room storage temperatures
- Min. = -25 °C Max. = +70 °C.
Protection class:
- Terminal protection index against solid bodies and liquids:
IP20 (IEC/EN 60529)
- Protection index of the internal components against solid bodies
and liquids: IP30 IEC/EN 60529
Housing material:
Volume and weight of packed MRCD:
Code Art.
RDBMRCD230
RDBMRCD24
5s
5s
5,14s
6.5W
(MRCD and TDB):
(MRCD and TDB):
>PC+ABS<
Volume Weight
3 Kg
dm
1 0,22
3 Kg
dm
1 0,22
Created: 06/09/2019
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