MERSEN (CARBONE LORRAINE) E6340 P1J Carbon Brush

Mersen (Carbone Lorraine) Carbon Brush Grade P1J E 66340

Description

This is a new, unused carbon brush from Mersen, formerly known as Carbone Lorraine, model E 66340. This component is crucial for conducting electrical current in motors and generators. The P1J grade indicates a specific material composition designed for optimal performance and durability in industrial environments. It comes with a pre-attached flexible pigtail and a forked terminal for easy installation.

Specifications

• Manufacturer: Mersen (Carbone Lorraine)
• Part Number: E 66340
• Material Grade: P1J
• Connection: Braided copper pigtail with forked terminal
• Contact Face: Curved

Label Info

• Brand: Carbone Lorraine
• Model: E 66340
• Grade: P1J

Application

Designed for use in a variety of industrial electric motors and generators where this specific size, shape, and material grade are required. It ensures reliable conductivity and low friction on commutators or slip rings.

Country of Origin

Manufactured in France.

CO2 Impact

Opting for this repurposed carbon brush instead of a new one prevents the emission of approximately 1.2 kg of CO2. This saving is equivalent to the energy needed to charge a smartphone more than 140 times.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the significance of the ‘P1J’ grade?
The ‘P1J’ grade refers to the specific carbon-graphite composition of the brush. This composition determines its electrical and mechanical properties, such as conductivity, hardness, and friction coefficient. It’s crucial for matching the brush to the motor’s specific operating voltage, current, and speed to ensure efficiency and longevity.

Is this carbon brush suitable for any DC motor?
No, carbon brushes are highly specific. This E 66340 model is designed for a particular motor or range of motors. Compatibility depends on the precise physical dimensions, the curvature of the contact face, the pigtail length, the terminal type, and the electrical properties defined by the P1J grade.

How do I know when to replace a carbon brush?
Replacement is necessary when the brush has worn down to the minimum length indicator (if present) or when it is too short to maintain adequate spring pressure against the commutator. Regular inspection for signs of excessive sparking, chipping, or uneven wear is also highly recommended to prevent motor damage.

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Last Update: Friday, March 13, 2026