C98043-A7003-L4-9 6RY1703-0DA06 Siemens Power Interface Incl Terminal

C98043-A7003-L4-9 6RY1703-0DA06 Siemens Power Interface Incl Terminal

1.Overview of the C98043-A7003-L4-9 6RY1703-0DA06 Siemens

The Siemens C98043-A7003-L4-9 (6RY1703-0DA06) is a dedicated power interface board for the 6RA70 series DC speed regulators. It features a rated input of 3AC 400-690V, 50/60Hz, a maximum continuous current of 125A, and a short-term current of 160A/10s. It is compatible with frame sizes 70-95, and has a rectifier output of 520-930V DC. A built-in three-phase half-controlled bridge provides integrated power supply for the armature and excitation circuits. Onboard fast-fuse fuses F1-F3, 160A gR, have a response time of <5ms and a transient withstand voltage of 1200V, protecting against grid spikes and commutation overvoltages, ensuring safe operation of the power components.

2.Core Features:

Siemens C98043-A7003-L4-9 (6RY1703-0DA06)
1. Key Parameters
Rated Input: 3 AC 400–690 V, 50/60 Hz
Continuous Current: 125 A (at 40°C), Short-Term 160 A/10 s
Rectified Output: DC 520–930 V, three-phase half-controlled bridge circuit
Built-in Fast Fuse: 160 A gR, Breaking Time ≤ 5 ms
Firing Pulse: 45–65 Hz, Automatic Synchronization, Isolated Transmission to Thyristors
Insulation Class: Input-Output 4 kV AC, 1 min
Operating Temperature: -25…+70°C, Humidity 5…95% RH (non-condensing)
Cooling: Natural air cooling, aluminum heat sink, Temperature Rise ≤ 35 K
Protective Coating: Conformal Coating, Salt Spray Resistant for 96 hours, Rust-Free
Dimensions: ≈ 257 × 205 × 55 mm (excluding busbars)
Terminals: Nickel-plated with gold plating, maximum connection width 50 mm², torque 3 N·m

2. Main Features
Power Interface: Integrated incoming busbar, pre-charging, and RC absorption eliminate the need for external reactors and contactors
Field Power Supply: Onboard independent rectifier bridge, providing DC 0–380 V / 30 A for the 6RA70 field circuit
Hot-Swap: Supports on-the-fly replacement in 3 minutes, with automatic parameter recognition
Protection: Phase loss, overcurrent, overtemperature, and fast-acting fuse detection, with fault signals reported via CUD1
Maintenance: LEDs indicate blown and overtemperature conditions, and records the timestamps of the last eight faults
Compatibility: Seamlessly integrates with the full range of 6RA70 CUD1, T400, and Profibus options, and is also compatible with 6RA80 module upgrades

This module has a high degree of system integration and compatibility, and can be flexibly adapted to single-quadrant or four-quadrant working devices. It has a built-in parameter setting unit (PMU), which provides an intuitive operation interface through a 5-digit digital tube and LED status indicator, and parameter configuration can be completed without additional tools. It supports digital and analog set value and feedback value input, and is compatible with multiple communication interfaces such as PROFIBUS, RS232/RS485 (USS protocol), and can be easily connected to the automation control system. In addition, the module adopts a reinforced electromagnetic shielding design and high-quality materials, and has anti-interference, high temperature resistance and dustproof characteristics, ensuring long-term stable operation in complex environments such as metallurgy, chemical industry, petroleum, and food processing.

3.Product details pictures

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