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1070088333 (PST6250.346-L)

PST Thyristor Power Units

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The Bosch 1070088333 (PST6250.346-L) is a thyristor power supply from the PST 6250 series, featuring an integrated weld timer and three expansion slots for I/O and communication modules. This unit operates with a 24 V DC output and is designed to support a 50% duty cycle regardless of working current, regulated by an internal 2.2 kΩ de-excitation resistor. The 1070088333 (PST6250.346-L) is compatible with welding transformers rated for up to 250 kVA peak power and utilizes an air blower for cooling. It supports an AC input voltage range of 400 to 600 V, delivers a continuous thermal system current of 200 A, and requires a 100 mm clearance for proper airflow during operation at temperatures up to 45°C.

Technical Specifications

Power Supply
24 Volts DC

Capacity
Up to 50% Duty Cycle

De-Excitation Resistor
2.2 kiloohms

Welding Transformer Compatibility
250 kVA Peak Power Rating

Cooling Type
Convection

Minimum Clearance Required
100 millimeters

Working Temperature Range
Up to 45 degrees Celsius

Storage Temperature Range
-25 to 70 degrees Celsius

Humidity Class
Class F (DIN 40040)

Elevation Limit
2000 meters above sea level

Input Requirement
400 to 600 Volts AC (Three-Phase, 50 / 60 Hertz)

Continuous Thermal Current
Up to 200 Amps

Recommended Wire Size
95 mm2

Power Connection
Box Terminal

Overvoltage Protection
Integrated Metal Oxide Varistor (MOV)

Enclosure Rating
IP 20

Programming Software
BOS-5000

Shipping
Global

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1620 Old Apex Road
Cary, NC 27513, USA

Toll Free: 1-888-551-3082
International: 1-919-443-0207

Fax: 1-919-867-6204

[email protected]

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Indramat USA 1 Year Warranty

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We offer a repair service for the PST6250.346-L.

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North Carolina Office

Indramat USA
1620 Old Apex Road
Cary, NC 27513
USA

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Toll Free: 1-888-551-3082
International: 1-919-443-0207

Indramat USA sells factory new and pre-owned surplus products and maintains channels to procure supply. Indramat USA is not affiliated with nor an authorized distributor or representative of any manufacturers, brands or products listed. Designated trademarks, brand names, and brands appearing herein are the property of their respective owners.