Datasheet

TDB404006en / Main catalogue part 4 – Residual current monitors, Residual current monitoring systems / 07.2010 43
4.2
Residual current monitor RCMA420
Insulation coordination acc. to IEC 60664-1/IEC 60664-3
Rated insulation voltage 250 V
Rated impulse voltage/pollution degree 2.5 kV / III
Protective separation (reinforced insulation) between
(A1, A2) - (k, l, T/R) - (11, 12, 14) - (21, 22, 24)
Voltage tests according to IEC 61010-1 2.21 kV
Supply voltage
RCMA420-D-1:
Supply voltage U
S
AC 16…72 V / DC 9.6…94 V
Frequency range U
S
42…460 Hz
RCMA420-D-2:
Supply voltage U
S
AC/DC 70…300 V
Frequency range U
S
42…460 Hz
Power consumption ≤ 3 VA
Measuring circuit
External measuring current transformer W20AB, W35AB, W60AB series
Rated insulation voltage (measuring current transformer) 800 V
Operating characteristic acc. to IEC 62020 and IEC/TR 60755 Type B
Rated frequency 0…2000 Hz
Measuring range AC 0…1.5 A
Measuring range DC 0…600 mA
Relative uncertainty of the response value 0…-35%
Relative uncertainty 0…35%
Response values
Rated residual operating current I
Δn1
(prewarning, AL1) 50…100 % x I
Δn2
, (50 %)*
Rated residual operating current I
Δn2
(alarm, AL2) 10…500 mA (30 mA)*
Hysteresis 10…25 % (15 %)*
Specified time
Start-up delay t 0…10 s (0.5 s)*
Response delay t
on2
(alarm) 0…10 s (0 s)*
Response delay t
on1
(prewarning) 0…10 s (1 s)*
Delay on release t
off
0…99 s (1 s)*
Operating time t
ae
at I
Δn
= 1 x I
Δn1/2
≤ 180 ms
Operating time t
ae
at I
Δn
= 5 x I
Δn1/2
≤ 30 ms
Response time t
an
t
an
= t
ae
+ t
on1/2
Recovery time t
b
≤ 300 ms
Cable lengths for measuring current transformers
Connection (see ordering information) connecting cable WX… 1 m / 2.5 m / 5 m / 10 m
Displays, memory
Display range, measured value AC 0…1.5 A
Display range, measured value DC 0…600 mA
Error of indication ± 17,5 % / ± 2 digit
Measured-value memory for alarm value data record measured values
Password off / 0…999 (off)*
Fault memory alarm relay on / off (on)*
Inputs/outputs
Cable length for external test/reset button 0…10 m
Switching elements
Number of switching elements 2 x 1 changeover contact
Operating principle N/C operation / N/O operation (N/C operation)*
Electrical endurance, number of cycles 10000
Contact data acc. to IEC 60947-5-1
Utilisation category AC-13 AC-14 DC-12 DC-12 DC-12
Rated operational voltage 230 V 230 V 24 V 110 V 220 V
Rated operational current 5 A 3 A 1 A 0.2 A 0.1 A
Minimum contact rating 1 mA at AC/DC ≥ 10 V
Environment/EMC
EMC IEC 62020
Operating temperature -25 ºC…+55 ºC
Climatic class acc. to IEC 60721
Stationary use (IEC 60721-3-3) 3K5 (except condensation and formation of ice)
Transport (IEC 60721-3-2) 2K3 (except condensation and formation of ice)
Long-time storage (IEC 60721-3-1) 1K4 (except condensation and formation of ice)
Classification of mechanical conditions IEC 60721
Stationary use (IEC 60721-3-3) 3M4
Transport (IEC 60721-3-2) 2M2
Long-time storage (IEC 60721-3-1) 1M3
Connection
Connection type push-wire terminals
Connection properties
rigid 0.2…2.5 mm² / AWG 24-12
flexible without ferrule 0.2…2.5 mm² / AWG 24-12
flexible with ferrule 0.2…1.5 mm² / AWG 24-16
Stripping length 10 mm
Opening force 50 N
Test opening, diameter 2.1 mm
Other
Operating mode continuous operation
Position of normal use display-oriented
Degree of protection, internal components (IEC 60529) IP30
Degree of protection, terminals (IEC 60529) IP20
Enclosure material polycarbonate
Flammability class UL94V-0
DIN rail mounting acc. to IEC 60715
Screw fixing 2 x M4 with mounting clip
Software version D242 V1.1x
Operating manual TGH1411
Weight ≤ 150 g
( )* = factory setting
Technical data