The Siemens C98043-A7010-L2-5 is a Field Excitation Power Board designed for the SIMOREG DC-MASTER 6RA70 series of DC drives. This module serves as the core power supply and control unit for the DC motor's field winding, providing stable and precisely regulated excitation current to maintain a consistent magnetic field in the motor.
Item No :
C98043-A7010-L2-5Order(MOQ) :
1 PiecePayment :
EXW/CIFProduct Origin :
GermanyShipping Port :
WuhanLead Time :
3-5daysWeight :
3kg| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Product Number | C98043-A7010-L2-5 |
| Alternative Reference | C98043A7010L25 |
| Product Type | Field Excitation Power Board |
| Compatible Series | SIMOREG DC-MASTER 6RA70 |
| Power Range (6RA70) | 210A-850A armature current / 15A-30A field current |
| Voltage | Single/3-phase universal input; 24V DC / field-specific output |
| Control Method | PWM (Pulse Width Modulation) |
| Protection Features | Overvoltage, overcurrent, overtemperature |
| Weight | Approx. 0.23 kg |
| Country of Origin | Germany |
| Lifecycle Status | Discontinued (PLM PM410) |
| Product Group | 3645 |
| Group Code | R2S7 |
| Model | Description | Application / Notes |
|---|---|---|
| C98043-A7010-L2-5 | Field Excitation Board (this product) | For high-power 6RA70 units (210A-850A armature current) |
| C98043-A7010-L1-5 | Field Excitation Board (low-power variant) | For low-power 6RA70 units (60A-125A armature current) |
| 6RA70 | DC-MASTER Drive Unit | Main DC drive chassis; this board installs inside |
| 6RY1703-0CA04 | Power Section Board | Another 6RA70 power board variant; 30A rating |
| 6RY1703-0CA01 | Power Board | Similar 6RA70 board variant for field supply applications |
| C98043-A7010-L2-4 | Excitation Board (earlier variant) | Predecessor version; verify compatibility before substituting |
1. What is the C98043-A7010-L2-5 and which system is it used with?
The C98043-A7010-L2-5 is a field excitation power board for the Siemens SIMOREG DC-MASTER 6RA70 series of DC drives . It provides stable, precisely controlled excitation current to the DC motor's field winding, which is essential for maintaining a consistent magnetic field and enabling precise speed and torque control .
2. What is the difference between the L2-5 and L1-5 versions?
The "L2-5" variant is designed for high-power 6RA70 units with armature current ratings of 210A-850A and field current of 15A-30A. The "L1-5" version is for lower-power applications with armature current of 60A-125A and field current of 10A . Ensure you select the correct version for your specific 6RA70 drive unit.
3. Is this product still in production?
No. This product has reached End-of-Life status (PLM PM410: Product Support Discontinued) and is no longer actively produced by Siemens . It remains available as a spare part from specialized industrial suppliers offering "New Old Stock" (NOS) or reconditioned units.
4. What are the key protection features of this board?
The board includes comprehensive protection features, including overvoltage protection, overcurrent protection, and overtemperature protection . It also includes status indicator LEDs for quick fault diagnosis .
5. What should I consider when sourcing a replacement?
When sourcing a replacement C98043-A7010-L2-5, verify:
The exact part number matches your installed board
The "L2-5" version is correct for your 6RA70 power rating
Supplier warranty period (industry standard is 12 months for reconditioned units)
Product condition—prefer "New Factory Sealed" units whenever possible
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