Description
XL-21 Low-Voltage Power Distribution Cabinet | Industrial Grade | Clifnor
Product Overview: The XL-21 low-voltage power distribution cabinet is a high-performance solution designed for power plants, industrial facilities, and mining enterprises. It is specifically engineered for efficient power distribution within three-phase four-wire or three-phase five-wire systems with an AC voltage rating up to 500V.
Key Features:
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Design: Designed as an indoor device with a robust shell made of precision-bent steel plates for maximum durability.
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Operational Control: The front door features integrated test instruments and a dedicated switch handle for easy monitoring and manual operation.
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Customization: Flexible internal configuration allows for various types and current ratings of circuit breakers to meet specific customer requirements.
Technical parameters of the main equipment:
Disconnector-Fuse
| TYPE | Rated current (A) | Fuse-rated current(A) | Remark |
|---|---|---|---|
| HR3-400/34 | 400 | 150, 200, 250, 300, 350, 400 | No fuse when install knife switch |
Air Circuit Breaker (ACB)
| TYPE | Rated current (A) | Tripping Current Setting(A) | Remark |
|---|---|---|---|
| DZ15-40/390 | 20 | 7、10、15、20、30、40 | |
| DZ10-100/300 | 100 | 15、20、25、30、40、50、60、80、100 | |
| DZ10-250/330 | 250 | 100、120、140、170、200、225、250 |
Current Transformer
| TYPE | Primary current(A) | Secondary current(A) | Remark |
|---|---|---|---|
| LM-0.5 | 75、100、150、200、300、600 | 5 |
Fuse
| TYPE | Fuse | Fuse-rated current(A) | Remark |
|---|---|---|---|
| RL1-15 | 15 | 2、4、5、6、10、15 | |
| RL1-60 | 60 | 20、25、30、35、40、50、60 | |
| RL1-100 | 100 | 30、40、50、60、80、100 | |
| RL1-200 | 200 | 80、100、120、150、200 | |
| RL1-400 | 400 | 150、200、250、300、350、400 |
AC Contactor
| TYPE | Rated current (A) | Attracting coil voltage(V) | Remark |
|---|---|---|---|
| CJ10-10 | 10 | AC 110 220 380 |
|
| CJ10-20 | 20 | ||
| CJ10-40 | 40 | ||
| CJ10-80 | 80 | ||
| CJ10-150 | 150 |
Instrument
| TYPE | Name | Unit | Range | Remark |
|---|---|---|---|---|
| 44L1-A | Ammeter | A | 5、10、15 | |
| 5、10、15、20、30、50、75、100、150、200 | ||||
| 44L1-V | Voltmeter | V |
Operation, Maintenance, and Repair Protocol
To ensure the longevity and operational safety of the XL-21 Power Distribution Cabinet, strict adherence to the following protocols is mandatory. Before commissioning the unit after initial installation or any maintenance/repair activity, the following technical inspections must be performed.
Pre-Operational Inspection Checklist
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Schematic Compliance: Verify that all electrical components, internal busbars, and wiring configurations strictly align with the approved engineering drawings and technical documentation.
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Mechanical Integrity: Manually cycle the knife switches and circuit breakers to ensure smooth mechanical operation. There should be no signs of jamming, excessive friction, or misalignment.
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Connection Reliability: Conduct a torque check on all electrical terminals. Ensure all connections are secure, meet the equipment’s conductivity requirements, and are free from loose strands.
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Sanitization and Fastening: Inspect the cabinet interior for foreign debris (such as wire clippings, dust, or tools). Confirm that all mounting hardware and fixing screws are tightened to the specified tension.
Ordering Guidelines & Technical Requirements
To provide a solution precisely tailored to your industrial requirements, please include the following technical documentation when placing an order for the XL-21 series:
1. Primary Circuit Configuration
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Provide a comprehensive Single-Line Diagram (SLD).
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Clearly indicate the incoming and outgoing feeder capacities and busbar ratings.
2. Secondary Circuit Design
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Provide an Expanded Secondary Circuit Diagram.
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Include details for metering, relay protection, and control logic (Auto/Manual/Remote).
3. Component Specifications
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Submit a detailed Bill of Materials (BOM) including specific parameters (Amperage, Breaking Capacity $I_{cu}$, and Voltage $U_e$).
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Specify preferred brands or technical grades for circuit breakers, transformers, and monitoring instruments.
