Siemens 6DR2800-8R DR Analog Input Module

Description

Siemens 6DR2800-8R DR Analog Input Module

Product Dimensions：

The Siemens 6DR2800-8R is a high-quality Relay Module (Interface Module) specifically designed for the SIPART DR series of industrial process controllers (such as the SIPART DR19, DR21, DR22, and DR24). It serves as a plug-in expansion to increase the switching capacity and output count of the controller.

Product Detailed Description

The 6DR2800-8R is an optional plug-in card that provides two relay outputs. It allows the SIPART DR controller to interface directly with high-power AC or DC loads, such as contactors, solenoid valves, or alarm sirens, which exceed the capacity of the controller’s standard transistor outputs.

Technical Parameters

Product Advantages

• Plug-and-Play Integration: Designed specifically for the SIPART DR hardware architecture; no external wiring between the controller and the relay is needed inside the chassis.
• Galvanic Isolation: Protects the sensitive microprocessor of the controller from high-voltage transients and electrical noise on the load side.
• High Switching Reliability: Features gold-flashed silver contacts that ensure reliable switching even with very low currents (low-level signals).
• Space Saving: Eliminates the need for external interposing relays on the DIN rail, significantly reducing the size of the control cabinet.

Important Considerations (Precautions)

• Current Limits: While rated for 2 A, always account for inductive loads (like solenoids). These can cause arcing; it is highly recommended to use an external RC snubber or diode to protect the relay contacts.
• Slot Compatibility: Ensure the specific SIPART DR controller model has an available “Option Slot” (usually Slot 5 or 6, depending on the base unit configuration) before installation.
• Power-Off Installation: Never insert or remove the module while the controller is powered on. This can damage the internal bus and the module itself.
• Load Type: For DC loads at high voltages (near 250V), the switching current must be derated significantly to avoid sustained arcing.

Product Applications

The 6DR2800-8R is used in process automation wherever a SIPART DR controller needs to perform physical switching:

• Temperature Control: Actuating heating elements or cooling fans via external contactors.
• Safety Interlocks: Providing “Common Alarm” or “High-High” trip signals to emergency shutdown systems.
• Pump Control: Starting/stopping small dosing pumps or chemical feed motors.
• Valve Actuation: Driving motorized or solenoid-operated valves for flow and pressure regulation in chemical or water treatment plants.

Shipping Port: Xiamen, China

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