Siemens 6RA2818‑6DS21‑0 SIMOREG 6RA28 DC Converter, 400V 30A

Siemens SIMOREG 6RA28 6RA2818‑6DS21‑0 single‑quadrant non‑regenerative thyristor DC converter, 3‑phase AC 400V input, rated armature DC current 30A, analog closed‑loop speed and current regulation, forced‑air cooling, for heavy‑industry low‑power DC variable‑speed motor applications.

Specification

Brand/Manufacturer: SIEMENS

Status: Check Stock

Series: SIMOREG‑K

Place of Origin: Made in Germany

Alternate PN: 6RA28186DS210

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Product Specification

Warranty & Delivery

PDF Datasheet

Competitive Prices

Repairs & Diagnostics

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Item	Specification
Part Number	6RA2818‑6DS21‑0
Product Family	SIMOREG 6RA28
Product Type	Single‑quadrant thyristor DC converter
Input Supply	3‑phase AC 400 V, tolerance +15 % / −20 %
Rated Frequency	45‑65 Hz
Rated Armature DC Current	30 A
Armature Output Voltage	0‑485 V DC
Power Circuit Topology	B6C single‑quadrant non‑regenerative bridge
Rated Exciter Voltage	340 V DC, uncontrolled field rectifier
Typical Motor Power @400V	14.5 kW
Control System	Analog closed‑loop: speed, current, armature voltage
Interfaces	Analog set‑point input, binary control I/O terminals
Cooling	Forced‑air cooling with integrated fan
Protection Class	Power unit IP00, control electronics IP20
Mounting	Cabinet floor‑mount installation
Operating Ambient Temperature	0 °C … +45 °C; enhanced ventilation required above 35 °C
Weight	Approx. 13 kg
Country of Origin	Germany
Certifications	CE

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