Siemens 6RY1803-0CA04 Field Supply Board

Key Features

• Original Siemens Spare Part – Manufactured to OEM specifications for exact compatibility

• Field/Excitation Power Supply – Provides regulated DC power to motor field windings for precise torque and speed control

• Active Product Lifecycle – PLM status PM300: Active Product, ensuring ongoing support

• Direct Replacement – Designed as a drop-in spare for the C98043-A7115-L12 board

• Fast Factory Dispatch – Planned shipping within 4 working days

Technical Parameters

Core Advantages

1. Critical Drive Component for DC Motor Control

The field supply board is essential for DC drive operation, providing the regulated excitation current required to establish the motor's magnetic field. Without proper field supply, the DC motor cannot produce controlled torque or speed. This board directly controls the field current in the drive's power section .

2. Genuine Siemens OEM Quality

As an original Siemens spare part, the 6RY1803-0CA04 ensures exact form, fit, and function compatibility with the drive system. Using genuine components maintains the integrity of the drive's field control circuit and avoids the risks associated with third-party substitutes.

3. Active Product Support

The board is classified under Siemens PLM status PM300: Active Product, meaning it remains fully supported and available through Siemens' service and spare parts channels. This provides long-term availability for maintenance planning .

4. Broad Drive Platform Compatibility

This field supply board is compatible with multiple Siemens drive platforms including SINAMICS DCM, Dynavert, and Drive systems, making it a versatile spare for facilities operating mixed Siemens drive equipment .

Applications

The Siemens 6RY1803-0CA04 is deployed as a spare part in Siemens DC drive systems:

Primary Functions

• Field Current Regulation – Provides controlled DC power to motor field windings

• Excitation Supply – Maintains magnetic field for torque production

• Auxiliary Power – Supplies regulated power for drive control circuits

Recommended Models & Related Products

Note: Different drive models may require different field supply board variants. Always verify the exact PCB number (C98043-A7115-L12) against your existing board before ordering .

What's Included

• 1 × Siemens 6RY1803-0CA04 Field Supply Board (C98043-A7115-L12)

Note: Drive unit, power section components, and wiring are sold separately.

Why Buy From Us?

• New and Original – Genuine Siemens product

• In Stock – Ready to ship immediately

• Fast Shipping – Expedited shipping options available

• Warranty Included – Purchase with confidence

• Technical Support – Drive compatibility assistance available

Frequently Asked Questions (FAQ)

Q1: What is the Siemens 6RY1803-0CA04?

It is a Field Supply Board (excitation board) for Siemens industrial drive systems. The PCB part number is C98043-A7115-L12. It provides regulated field/excitation power for DC motors and drive power sections .

Q2: Which drive systems is this board compatible with?

The board is commonly used in SINAMICS DCM, Dynavert, and SIMOREG series DC drives . Always verify compatibility with your specific drive model and existing PCB number.

Q3: What is the PCB number for this board?

The PCB number is C98043-A7115-L12 .

Q4: What is the net weight of this module?

The net weight is 0.153 kg .

Q5: What is the product lifecycle status?

The 6RY1803-0CA04 is classified under PM300: Active Product, meaning it remains supported by Siemens .

Q6: What is the country of origin?

Romania .

Q7: How quickly can this board ship?

The planned factory dispatch time is 4 working days. With stock availability, orders can typically ship same or next business day .

Q8: Is this a genuine Siemens product?

Yes. This is a new and original Siemens spare part with article number 6RY1803-0CA04 .

Q9: What are the symptoms of a failed field supply board?

A failed field supply board typically results in loss of motor field current, causing the DC motor to lose torque, run at incorrect speed, or trip on field-related faults. The drive may display excitation or field loss alarms.

Q10: What should I verify before ordering?

Always verify the article number (6RY1803-0CA04), the PCB number (C98043-A7115-L12), the drive model, and the existing board configuration before ordering. Consult Siemens documentation or contact our technical support for assistance.