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Product Detailed Parameters
- Description：KCMA 5-400-5A-1VA-0.5
- Series：-
- Mfr：Weidmüller
- Package：Box
- Frequency Range：50Hz
- Type：Non-Invasive (Split Core)
- Inductance：-
- ET (Volt-Time)：-
- Current Ratio：-
- DC Resistance (DCR)：-
- Ratings：-
- Mounting Type：DIN Rail
- Size / Dimension：4.921" L x 2.283" W (125.00mm x 58.00mm)
- Height - Seated (Max)：6.220" (158.00mm)
- Termination Style：Terminal Block
- Turns Ratio - Primary:Secondary：-
- Current Rating (Amps)：400 A
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Overview
The Weidmüller 2753370000 is a split-core current transformer designed for retrofitting applications where primary conductors cannot be cut. It features a primary current rating of 400 A and a secondary current output of 5 A. The device supports a maximum load of 1 VA with a tolerance class of 0.5. Physical dimensions include a length of 58 mm and a height of 158 mm, accommodating an asymmetrical cable feed-through with a diameter of 55 mm. It operates at a maximum temperature of +40 C.
Feature Summary
- Split-core design allows installation without cutting primary conductors
- Suitable for hard-to-reach places during retrofitting
- Precise measurement using rms value methods
Applications
- Retrofitting existing electrical installations
- Current consumption measurement of connected loads
- Industrial monitoring in confined spaces
Procurement Notes
Verify the specific order number KCMA 5-400-5A-1VA-0.5 matches the required technical specifications. Confirm the physical dimensions fit the installation space. Ensure the primary conductor diameter does not exceed the 55 mm feed-through limit. Check that the load impedance remains within the 1 VA rating to maintain the 0.5 tolerance class accuracy.
Selection Notes
Select this component when non-invasive current measurement is required for circuits up to 400 A. The split-core architecture eliminates the need to disconnect live wires, making it ideal for maintenance or expansion projects. Ensure the secondary circuit burden does not exceed 1 VA to preserve measurement precision.
Part Context
This part belongs to the KCMA series of current transformers from Weidmüller. It is specifically engineered for industrial environments requiring reliable current sensing. The model integrates into DIN rail systems or similar mounting structures common in control panels.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing secondary wiring before considering alternative models.
FAQ
Can this transformer be installed without disconnecting the primary cable?
Yes, the split-core design allows for installation without cutting or disconnecting the primary conductors.
What is the maximum cable diameter this unit accepts?
The device supports an asymmetrical cable feed-through with a maximum diameter of 55 mm.
