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Siemens S7-1200 AS interface DCM 1271 AS-i Data Coupler
SKU: 3RK7271-1AA30-0AA0
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Short Description
Pricing available on request
Description:
The DCM 1271 is a data and power decoupling module that separates AS-i communication signals from auxiliary power, ensuring stable operation and diagnostic capability in AS-Interface systems.
It supports both grounded and ungrounded AS-i networks and includes built-in fault detection and signalling.
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Specifications:
Input Voltage:
AS-i: 30 V DC.
Auxiliary: 24 V DC.
Output Voltage:
AS-i: 30 V DC.
Auxiliary: 24 V DC.
Max Output Current: 4 A.
Max Input Current: 4.1 A.
Short-Circuit Protection: Electronic.
Overload Protection: Integrated.
Ground Fault Detection: Yes.
AS-i Power24V Support: Yes.
Interfaces & Indicators:
Signalling Contact: 1 NO contact (3 terminals).
Status LEDs:
EFD (Earth Fault Detection).
ASI OL (Overload).
DIAG (Diagnostics).
Mechanical Details:
Mounting: DIN rail or wall mount.
Terminal Type: Screw-type, removable.
Wire Range: 0.2–3.3 mm² (AWG 24–16).
Protection Class: IP20.
Dimensions (W x H x D): 30 x 100 x 75 mm.
Environmental Conditions:
Operating Temperature: 0 to +55 °C.
Storage Temperature: –40 to +70 °C.
Humidity: Up to 95% (non-condensing).
Altitude: Up to 2000 m.
Compliance & Approvals:
CE, UL, FM, ATEX, IECEx, DNV, RCM, CQC.
EMC & Safety: Fully compliant for hazardous locations.
RoHS & REACH: Compliant.