21BRCX-600-J12

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The 21BRCX-600-J12 is a resolver manufactured by Danaher. Part of the Dynapar Resolvers series, it features a housing made of aluminum and system type BRCX suitable for single or multiple speeds. With a rotor resistance of 214 Ω, it operates at an excitation voltage of 7 Vrms. The resolver has an accuracy of 120 arc-min.

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Product Description:

The 21BRCX-600-J12 frameless resolver by Danaher has an aluminum single servo groove. This product has two separate rotor and stator assemblies. The device is also called a pancake resolver because of its shape and design. The product uses a rotary transformer fitting based on the application. This device is free of any internal bearings in its construction or design. The unit must be mounted directly on the associated assembly. It features maximum accuracy for velocity and position applications. This resolver has fewer electrical errors than a standard resolver.

The product comprises windings in its design. This device is not affected by most industrial contaminants. The unit allows customization according to need. Its rotor is mounted directly onto the motor’s shaft. This resolver’s stator housing is placed over the motor end bell. The product’s components meet REACH standards and are RoHS compliant. This device’s design portrays a 21 frame size and has no brushes. The unit has support for multi-speed and single-speed operation. Its rotor is considered to be its primary part.

This resolver has an aluminum housing with a size of 1.35 inches to 2.061 inches. The product incorporates phasing in the counterclockwise direction. The device’s wire leads depict a size of 24 AWG. This unit has excellent robustness. It houses a very small bore of just 0.8 inches in size. This frameless resolver is lightweight and has a mass of only 0.34 kg. The product incorporates the manufacturer’s patented flux shield technology. This device eliminates the need for a tachometer to support its operation. The unit has extreme ruggedness with its anodized finish. It is used to deliver velocity feedback and offer motor commutation.

Accuracy/angular Error
120 arc-min
Excitation Current
40 mA
Excitation Frequency
10 kHz
Excitation Voltage
7 Vrms
Frame Size
21 – Basic Outer Diameter is 2.1 inches
Housing Length
1.35 inches
Housing Material
Aluminum
Mounting Type
600 Single Servo Groove
Null Voltage
75 mV
Phase Shift
-5°
Pilot Diameter
2.061 inches
Rotor Resistance
214 Ω
Stator Resistance
638 Ω
System Type
BRCX (Single or Multiple speeds – Rotor Primary)
Transformation Ratio
0.50

Frequently Asked Questions about 21BRCX-600-J12:

Q: What is the outer diameter of the frame of the 21BRCX-600-J12 resolver?

A: The outer diameter of the frame of the 21BRCX-600-J12 resolver is 2.061 inches.

Q: What is the excitation voltage of the 21BRCX-600-J12 resolver?

A: The excitation voltage of the 21BRCX-600-J12 resolver is 4.25 Vrms.

Q: What technology does the 21BRCX-600-J12 resolver incorporate?

A: The 21BRCX-600-J12 resolver incorporates Flux Shield technology.

Q: What connectors does the 21BRCX-600-J12 resolver come equipped with?

A: The 21BRCX-600-J12 resolver comes equipped with MS-style connectors.

Q: What is the frame size code of the 21BRCX-600-J12 resolver?

A: The frame size code of the 21BRCX-600-J12 resolver is 21.


Internal Product Review

  • ‘‘The 21BRCX-600-J12 encoder has a rugged housing. It supports single-speed and multiple-speed operations. The resolver meets the requirements of applications where accuracy is of primary importance.’’

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