3RK1408-8KG00-0AA2
Page 1
Product data sheet
3RK1408-8KG00-0AA2
AS-INTERFACE SLIMLINE MODULE S22.5,
EARTH FAULT MONITORING,
IP20,1 X 1INPUT, REMOTE RESET,
2 X SIGNAL OUTPUT, RELAY,
1A DC12 1A (2A MAX.) DC13 500MA (24V) CAGECLAMP,
MODULE WIDTH 22.5 MM,
NO AS-I ADDRESS REQUIRED AS-INTERFACE
MONITORING ONLY
General technical data:
Design of the product
ground-fault detection modules - modules with special
functions
Design of the electrical connection / of the inputs and
outputs
spring-loaded terminals
AS interface / total current input / max
40 mA
Earth fault
10% Uas-i <= Ugnd <= 90% Uas-i
Addressing
the module does not need its own AS-Interface
address
Signal range / low signal / lin / max
1.5 mA
Signal range / high signal / Uin / min
10 V
Signal range / high signal / lin / min
6 mA
Current carrying capacity / DC-12
1A
Current carrying capacity / DC-13 / 24 V
500 mA
Current carrying capacity / DC-13 / 48 V
200 mA
Operating cycles / DC-12
2000000
Rated operational voltage / DC / min
24 V
Rated operational voltage / DC / max
48 V
Rated temperature
25 °C
AS interface / Connection / Polarity reversal protection
built-in
Date:
01/11/2008
subject to modifications
© Copyright Siemens AG 2008
3RK1408-8KG00-0AA2
Page 2
Note 1
If repeaters are used, a ground fault detection module
must be used for each AS-Interface segment (number
of AS-Interface power supply units = number of ground
fault detection modules)
Note 2
Uaux should be protected by a 2 A slow fuse. The
endurance of the relay can be increased if inductive
loads are connected using freewheel diodes.
Inputs:
Status display:
Certificates/approvals:
Ambient conditions:
Ambient temperature
• during the operating phase
• maximum
70 °C
• minimum
-25 °C
• during storage
• maximum
85 °C
• minimum
-40 °C
Protection class IP
IP20
Mechanical design:
Width
22.5 mm
Height
103 mm
Depth
86 mm
Type of fixing/fixation
standard rail mounting/wall mounting
Conductor cross-section
• solid
2 x (0.25 - 1.5) mm²
• finely stranded
• with end sleeve
2 x (0,25 - 1) mm²
• without end sleeve
2 x (0.25 - 1.5) mm²
• AWG / solid or stranded
Date:
01/11/2008
AWG 2 x (24 - 16) mm²
subject to modifications
© Copyright Siemens AG 2008
3RK1408-8KG00-0AA2
Page 3
last change:
Technical Assistance:
Date:
01/11/2008
10/31/2006
Telephone:
+49 (0) 911-895-5900 (8°° - 17°° CET)
Fax:
+49 (0) 911-895-5907
E-Mail:
technical-assistance@siemens.com
Internet:
www.siemens.de/lowvoltage/technical-assistance
subject to modifications
© Copyright Siemens AG 2008