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Allen Bradley Bulletin 872C 872C-DH4NN12-D4

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872C-DH4NN12-D4

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The 872C-DH4NN12-D4 is a capacitive proximity sensor developed by Allen Bradley. This sensor is designed for versatile applications, operating effectively within an extensive voltage range from 20 to 250 volts AC.

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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 872C-DH4NN12-D4

ManufacturerAllen Bradley
Product TypeInductive Proximity Sensor
Product LineBulletin 872C
Part Number872C-DH4NN12-D4
Weight0.13 lbs (0.06 kg)
ShieldedNo
Barrel Diameter12 mm (0.47 in)
Nominal Sensing Distance4 mm (0.16 in)
Output ConfigurationNPN
Hysteresis≤15% typical
Repeatability≤5%
Voltage Drop≤5V
Operating Voltage20-250V AC
Leakage Current≤2 mA
Inrush Current (1 cycle)≤2 A
Minimum Load Current5 mA
Load Current≤300 mA
Vibration55 Hz, 1 mm amplitude, 3 planes
Shock30 g, 11 ms
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The Allen Bradley 872C-DH4NN12-D4 is an inductive proximity sensor that excels in various industrial settings. This sensor lacks shielding and has a barrel diameter of 12 millimeters (0.47 inches). Its nominal sensing range is effective up to 4 millimeters (0.16 inches), allowing it to detect objects or obstacles precisely within its designated distance.

In terms of electrical performance, the device operates efficiently on alternating current voltage ranging from 20 to 250 volts. The output configuration is NPN, and the voltage drop across the sensor is limited to 5 volts or lower. Typical hysteresis is approximately 15%, indicating stability in its switching behavior, while repeatability is rated at 5% or less.

This proximity sensor demonstrates low leakage current, rated at a maximum of 2 mA, which minimizes power consumption. It can handle an inrush current of up to 2 amps for a single cycle, and a minimum load current of 5 mA is required for proper operation. With a maximum load current of 300 mA, this sensor can accommodate various operational demands.

Designed to withstand challenging conditions, the 872C-DH4NN12-D4 can tolerate vibrations of 55 Hz with a 1 mm amplitude across three different planes. It also withstands shock up to 30 G with a duration of 11 milliseconds. This rugged construction helps ensure reliability and stability in demanding environments.