6ED1057-4BA01-0AA0 SIEMENS

6ED1057-4BA01-0AA0 Siemens Basis unit

Brand：SIEMENS Model number：6ED1057-4BA01-0AA0

Country of origin: Germany Product weight：0.55kg

HS code：8517623990

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Product Details：

Product Dimensions：

The Siemens 6ED1057-4BA01-0AA0 is a LOGO! Contact Module designed to extend the relay output capabilities of the Siemens LOGO! logic module controllers. It serves as a necessary accessory to expand the number of circuits that the base module can switch or control.

Product Specifications

Product Type: LOGO! Contact Module (DM8 24R)
Part Number: 6ED1057-4BA01-0AA0
Function: Digital expansion module for LOGO! logic modules.
Supply Voltage: $24 \text{ V DC}$ (for the module's internal power supply)
Inputs: 4 Digital Inputs (DI)

Input voltage for signal "0": $5 \text{ V DC}$
Input voltage for signal "1": $15 \text{ V DC}$

Outputs: 4 Relay Outputs (DO)

Output type: Relay, single changeover contacts (SPDT - Single Pole Double Throw)
Switching Voltage: Up to $250 \text{ V AC}$ or $125 \text{ V DC}$
Switching Current (for resistive load): Up to $5 \text{ A}$

Connection Type: Screw terminals for easy wiring.
Mounting: DIN rail mounting (standard industrial mounting).
Degree of Protection: IP20 (protection against solid objects over $12.5 \text{ mm}$ , no water protection).
Compatibility: Intended for use with the LOGO! series of logic modules, such as LOGO! 8.

Product Advantages

Simple Output Expansion: Provides an extremely cost-effective and straightforward way to increase the number of physical relay outputs of a standard LOGO! base module without upgrading the entire controller.
High Switching Capacity: The relay outputs allow the LOGO! system to directly switch larger loads or circuits operating at different voltages (e.g., $230 \text{ V AC}$ ) than the logic module itself, enhancing system flexibility.
Universal Application: The SPDT (changeover) relay contacts offer versatility, allowing the module to switch between two different circuits (normally open or normally closed), which is useful for interlocking or status signaling.
Easy Integration: Designed specifically for the LOGO! family, it snaps easily onto the DIN rail next to the base module and connects simply via the bus connector on the side.

Important Considerations (Precautions)

Voltage Limitations: Although the relays can switch up to $250 \text{ V AC}$ , the module itself requires a $24 \text{ V DC}$ supply for its internal operation and logic processing. Ensure the correct power supply is used.
Relay Life: The lifespan of mechanical relays is finite and depends on the switched current and voltage. For high-frequency or high-current switching applications, consider using a solid-state relay (SSR) module or an industrial PLC instead.
Inductive Loads: When switching inductive loads (like motor contactors or solenoid valves), appropriate surge suppression (e.g., RC snubber circuits or diode suppressors) must be installed across the load terminals to protect the relay contacts from premature wear due to arcing.
Installation Environment: Due to the IP20 rating, the module must be installed within a protective electrical enclosure to shield it from dust, moisture, and potential contact damage.

Product Applications

The 6ED1057-4BA01-0AA0 Contact Module is primarily used in small-scale automation, building automation, and simple machine control systems to extend the IO capacity of the LOGO! logic module.

Typical applications include:

Building Services: Controlling lighting circuits, ventilation fans, pumps, and simple heating/cooling systems, often needing to switch $230 \text{ V AC}$ loads.
Small Machinery: Controlling motors, solenoid valves, and indicator lights on simple conveyor systems, packaging machines, or mixing equipment.
Panel Building: Used in control panels to interface the low-voltage logic of the LOGO! with higher-power field devices.
Home Automation: Controlling garage doors, garden watering systems, or simple access control systems where both expanded logic and higher-voltage switching are required.

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