ABB CMA121 3DDE300401 Synpol D DC Power Supply Module

Product Description

Configured for DC power conversion within the Synpol D control platform, the ABB CMA121 3DDE300401 (CMA121 DC Power Supply Module) provides regulated electrical power from a 24 VDC nominal input. The module accepts an 18 VDC to 32 VDC input range and delivers a 5 VDC output rated at up to 4 A for connected control hardware.

Hardware Specifications

ABB Backplane and Power Distribution Characteristics

The CMA121 3DDE300401 supplies regulated 5 VDC power for compatible Synpol D control hardware. Its 4 A maximum output capacity supports distributed internal loads while maintaining the specified output regulation.

In addition, the 500 VDC input-to-output isolation separates the input supply circuit from the regulated output circuit. The specified ripple and noise level of less than 50 mV peak-to-peak also limits output voltage variation caused by the conversion stage.

For ABB industrial control architectures, power modules operate alongside backplane-mounted hardware and support I/O density scaling through controlled power distribution. However, this module's specific backplane communication function and firmware compatibility are not specified in the provided data.

Frequently Asked Questions

Q: What input voltage range does the ABB CMA121 3DDE300401 accept?
A: The module accepts 18 VDC to 32 VDC and uses 24 VDC as its nominal input voltage.

Q: What output does the CMA121 provide?
A: The module delivers 5 VDC with an output tolerance of +/- 1% and a maximum output current of 4 A.

Q: What isolation is provided between the input and output circuits?
A: The specified input-to-output isolation rating is 500 VDC. The provided data does not specify hot-swap capability or redundancy switching characteristics.

Field Installation Guidelines

Install the CMA121 3DDE300401 in accordance with the applicable ABB Synpol D hardware arrangement and cabinet installation requirements.

• Verify that the incoming DC supply remains within the 18 VDC to 32 VDC operating range before energizing the module.
• Confirm input polarity and terminal identification before connecting the DC supply.
• Keep power wiring separated from high-noise switching and high-current conductors where practical.
• Use appropriate conductor routing and shielding practices for the surrounding industrial control cabinet.
• Verify that the connected 5 VDC load does not exceed the specified 4 A maximum output current.
• Maintain the specified operating environment of 0 deg C to +60 deg C and 5% to 95% non-condensing relative humidity.
• Remove system power before installation or removal unless the applicable ABB system documentation explicitly permits energized servicing.
• Inspect connectors and mounting interfaces for contamination, damage, or loose mechanical engagement before commissioning.

Other Attributes

• Series: Advant DCS/800xA
• Country of Origin:  Germany/Sweden/Finland
• Lead Time: In Stock, 2 Working Days

In Stock Hot Items of ABB

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