KDS4K - 400 Amp Max. Mounting Kit

KDS4K - 400 Amp Max. Mounting Kit

Introducing the high-quality, aftermarket replacement 3-pole circuit breaker, KDS4K, designed to handle up to 400 amperes and fit frame types DK, KD, HKD and KDC. With dimensions of Height 6.0″, Width 20.0″ and Depth 3.0″, this unit offers a precise and dependable fit for applications requiring a solid three-pole, 400 A solution. Whether you’re upgrading or replacing an original OEM KPRL4KDS mounting kit, this product is engineered and crafted by professionals to meet your needs. It delivers strong performance, long service life, and an efficient installation process.

Key Features & Benefits

• Engineered as a professionally made after-market replacement: This breaker gives you OEM-level fit and finish without compromise.
• 400 A capacity in a three-pole configuration: Meets the demands of heavy-duty electrical distribution systems.
• Compatible with multiple frame types (DK, KD, HKD, KDC): Offering flexibility and consolidating inventory for installers and facilities managers.
• Built to match the mounting and hardware kit of the original KPRL4KDS single-mounting arrangement: So you can install confidently with minimal fuss.
• Compact dimensions (6.0″ H × 20.0″ W × 3.0″ D): Allow efficient use of panel space, enabling better layout, fewer modifications and quicker turnaround.
• High-quality construction: Means fewer service calls, less downtime and better peace of mind for end-users and maintenance teams.

Technical Specifications

• Poles: 3
• Amperage rating: 400 A
• Frame compatibility: DK, KD, HKD, KDC
• Dimensions:
  • Height: 6.0″
  • Width: 20.0″
  • Depth: 3.0″
• Intended as replacement for OEM part: KPRL4KDS (single mounting kit)
• After-market mounting hardware kit included: For the specified OEM part.

Material Compliance & Certifications

• While this is an aftermarket replacement: It has been manufactured with quality components to meet standard industrial expectations.
• All materials used: Are suitable for current electrical distribution equipment, with appropriate insulation, conductor connections and hardware designed for safe, long-term operation.
• Note: If you require specific UL/CSA listing or CE marking details, please contact support for full compliance documentation.

Where It Works Best

• This breaker is a smart choice for commercial and industrial electrical panels where a durable 400 A, 3-pole circuit breaker is required and the original equipment (OEM KPRL4KDS single mounting kit) is being replaced or upgraded. It works especially well in retrofit scenarios where compatibility with existing hardware and mounting footprint is critical.
• Use it in manufacturing facilities, data centers, institutional buildings or any infrastructure where you need dependable high-amp three-pole protection and want to avoid the expense or lead time of a full OEM part replacement.