Mersen (Carbone Lorraine) Carbon Brush E634D

Description

This is a genuine new-old-stock carbon brush from Mersen, formerly known as Carbone Lorraine. The model features the electrographitic material grade E634D, which is renowned for its excellent performance in DC motors and generators. It provides reliable current transmission with low friction and long service life. This component is essential for maintaining the operational integrity of various industrial electrical machines.

Specifications

• Brand: Mersen (Carbone Lorraine)
• Material Grade: E634D
• Part Number: 553379
• Type: Electrographitic Carbon Brush
• Connection: Double braided copper pigtail with spade terminal
• Condition: New Old Stock (NOS), manufactured in 2005

Label Info

• Stamped on Brush: E634D, D P1J
• From Original Box Label: Part No. 553379, Date 24/06/2005

Application

Designed for use in a wide range of DC electric motors and generators. Common applications include industrial drives, traction motors, and power generation equipment where reliable commutation is critical.

Country of Origin

Manufactured in France by Carbone Lorraine.

CO2 Impact

Opting for this new-old-stock carbon brush prevents the emission of approximately 0.5 kg of CO2 compared to manufacturing a new one. This saving is equivalent to the emissions from driving an average car for 2.5 kilometers.

Availability

This is a legacy component, available from our stock for immediate dispatch. Perfect for repairs and maintenance of older equipment. Order now from PLC2Day for expert support and fast delivery.

FAQ

What is the E634D material grade suitable for?

E634D is an electrographitic grade specifically designed for DC machines. It offers good commutating properties, is capable of handling high current densities, and has a low coefficient of friction, making it suitable for demanding industrial applications.

As dimensions are critical for proper function, you should always match the replacement brush using the original part number (553379 in this case) or by precisely measuring the brush holder in your motor. Using an incorrectly sized brush can lead to poor performance and damage.

These brushes are sold individually. However, for optimal motor performance and to ensure even wear, it is highly recommended to replace all brushes in a motor at the same time.

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Friday, March 13, 2026