847T-DN2A-RH03000

Overview of Allen Bradley 847T-DN2A-RH03000

The Allen Bradley 847T-DN2A-RH03000 is an incremental encoder designed for precise industrial automation applications. Featuring a 2-inch diameter housing with a solid 3/8 inch diameter shaft and flat, this model offers high-resolution feedback essential for accurate speed and position measurement. Its robust mechanical design includes a metal code disk and a bearing system that withstands shock, vibration, and a wide temperature range, minimizing downtime. The encoder outputs TTL signals with a 4.5-5.5V line driver and supports signal phasing with B leading A, clockwise rotation. This component is not repairable but engineered for reliability and consistent performance in demanding environments. It fits well in systems requiring exact positioning and speed control, supporting 1 to 65,536 pulses per revolution resolution options.

Key Features of Allen Bradley 847T-DN2A-RH03000

• Incremental encoder with 3/8 inch diameter solid shaft with flat
• 2-inch diameter housing optimized for space-limited installations
• Output: 4.5-5.5 Volt TTL line driver signal with B leads A, clockwise (CW) rotation phasing
• High frequency response up to 820 kHz enables fast and precise feedback
• Metal code disk technology for durability and stability under vibration and shock
• Operating voltage between 8 to 30 V DC for flexible integration
• Symmetrical pulse output with 50% ±10% duty cycle
• Maximum operating speed up to 9000 RPM suitable for high-speed applications
• Gated zero index channel for accurate reference positioning
• Backwards compatible with older Allen Bradley 844A, 844B, and 845 series encoders

Technical Specs of 847T-DN2A-RH03000

Specification	Details
Shaft Size	3/8 inch diameter with flat
Housing Diameter	2 inches
Output Voltage	4.5-5.5 V TTL line driver
Signal Phasing	B leads A, clockwise rotation, Z index gated with B channel
Operating Voltage	8 to 30 V DC
Frequency Response	Up to 820 kHz
Resolution	1 to 65,536 pulses per revolution
Max Speed	9000 RPM
Protection	Reverse polarity and short circuit protected
Weight	0.601 kg
Dimensions (HxWxL)	15.24 cm x 21.717 cm x 20.447 cm

Applications / Use Case

The Allen Bradley 847T-DN2A-RH03000 is ideal for a variety of industrial automation tasks requiring precise speed and position monitoring. Its incremental encoding technology suits conveyor systems, printing and web converting machines, packaging lines, and cutting or material handling equipment. The durable construction and metal code disk make it appropriate for harsh environments involving vibration or shock loads. OEMs and system integrators rely on this encoder for feedback in servo control applications, motor positioning, and other machine automation contexts where accuracy and reliability are crucial. Its compatibility with legacy Allen Bradley encoder platforms facilitates straightforward upgrades.

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