Product Overview

The XL-21 Series Power Cabinet is a versatile and time-tested solution for low-voltage power distribution and motor control. Engineered for AC 50/60Hz systems with rated voltages up to 660V, the XL-21 is widely utilized in industrial enterprises, high-rise buildings, and pumping stations as a primary power control hub.

Characterized by its floor-standing enclosed design, the XL-21 provides a secure housing for circuit breakers, fuses, contactors, and measuring instruments. Its rugged construction and intuitive internal layout make it the "workhorse" of industrial power distribution, offering high mechanical strength and excellent protection against dust and accidental contact with live parts.

Key Technical Advantages

• Heavy-Duty Enclosure Design: Constructed from 1.5mm to 2.5mm cold-rolled steel plates. The cabinet frame is formed by welding or bolting high-quality C-profiles, ensuring it can withstand the weight of heavy copper busbars and high-amperage switchgear.

• Flexible Internal Configuration: The XL-21 is highly customizable. It can be configured as a Power Distribution Center (PDC) with multiple MCCB feeders or as a Motor Control Center (MCC) for Direct-On-Line (DOL) or Star-Delta starting.

• High-Purity Copper Busbar System: Features a robust T2 copper busbar arrangement designed for high thermal stability and short-circuit withstand. Busbars are clearly color-coded (L1, L2, L3, N, PE) for safe maintenance.

• Superior Safety Features: Equipped with a front-operating handle for the main isolating switch, mechanical door interlocks, and protective internal shields to prevent accidental contact with energized busbars.

• IP30/IP40 Protection: The precision-engineered door seams and gland plates prevent the ingress of industrial pollutants, ensuring the longevity of sensitive internal electronics.

Technical Specifications

Primary Application Scenarios

1. Industrial Workshops: Centralized power distribution for machining centers, assembly lines, and industrial HVAC systems.

2. Water Treatment & Pumping: Housing for pump controllers, soft starters, and localized circuit protection.

3. Commercial Substations: Managing power distribution for office complexes, residential neighborhoods, and shopping malls.

4. Mining & Construction: Rugged floor-standing panels for temporary power hubs in harsh, high-vibration environments.

Why Choose Our XL-21 Power Cabinets?

• Manufacturer-Direct Customization: We provide bespoke internal arrangements based on your Single Line Diagram (SLD). Choose your preferred component brands, including Chint, Schneider, ABB, or Siemens.

• Advanced Surface Treatment: All cabinets undergo a rigorous pickling, phosphating, and electrostatic epoxy powder coating process, providing a finish that is resistant to scratches and chemical corrosion.

• Thermal Optimization: Strategic ventilation louvers are integrated into the cabinet sides or doors to facilitate natural convection, keeping internal temperatures within safe limits during peak load periods.

• Ease of Maintenance: The spacious interior allows for easy access to cable terminals and busbar joints, significantly reducing the time required for routine inspections or upgrades.

FAQ

Q: Is the XL-21 cabinet suitable for outdoor installation?

A: The standard XL-21 is designed for indoor use (IP30/40). However, we can manufacture a modified version with a protective rain hood and enhanced gaskets to meet IP54/IP55 requirements for sheltered outdoor sites.

Q: Can this panel be used for solar power distribution?

A: Absolutely. We frequently customize XL-21 cabinets to act as AC combiner boxes or main AC distribution points for large-scale solar PV installations.

Q: What is the maximum height of the cabinet?

A: Standard height is typically 1600mm, 1800mm, or 2000mm. We can adjust the height and width to meet specific spatial constraints in your electrical room.