Hammond Manufacturing CN4SB404 - 3R/4 Splitter Box 400A 4 Wire - Steel/Gray
Hammond Manufacturing

CN4SB404

UPC: 623980022468


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Overview

The Hammond Manufacturing 3R/4 Splitter Box, identified by SKU CN4SB404, is a robust 400 Amp, 4-wire electrical distribution component engineered for demanding industrial power management scenarios. Its construction features durable steel, finished in a neutral gray, providing both resilience and a professional appearance. This splitter box is certified to meet NEMA Type 3R standards, signifying its capability to withstand environmental challenges such as rain, sleet, and dust ingress, making it suitable for both outdoor and indoor installations. The integral 4-wire configuration offers significant wiring flexibility, accommodating the needs of single-phase or three-phase electrical systems. This versatility positions the CN4SB404 as an effective solution across a broad spectrum of industrial, commercial, and utility sector applications where reliable power distribution is paramount. With its substantial 400 Amp current rating, this splitter box is specifically designed to handle high-demand electrical infrastructure, ensuring consistent and dependable power delivery. Manufactured in the United States, the CN4SB404 embodies a commitment to quality, adherence to industry standards, and is built for extended durability in challenging operational environments.
  • 400A current rating for high-demand electrical distribution
  • 4-wire configuration supports flexible wiring options
  • NEMA Type 3R rated for outdoor/indoor use with weather protection
  • Durable steel construction with gray finish for corrosion resistance
  • Manufactured in the US for reliable quality and compliance

Specifications

Application
The splitter boxes are designed for distribution of up to 600 A (max) service using either 3 or 4 wires.
Brand Name
Hammond Mfg.
Color
Gray
Cubic Capacity
2856 in3
Material
Mild Steel
Material Quality
Mild Steel
Mounting
Wall
NEMA Rating
type-3r, type-4
NEMA Rating
3R;4
Size
24 in x 17 in x 7 in
Special Features
Formed 14 and 16 gauge steel. Factory installed splitter blocks. Smooth, continuously welded seams ground smooth. Door stiffeners are provided where required for increased strength and rigidity - designed to also permit additional mounting options. Formed lip on enclosure to exclude flowing liquids and contaminants. Door latches feature the added safety of quarter turn slot requiring use of tool for opening. Doors may be easily removed for modifications and are interchangeable. Seamless poured-in place gasket. Collar studs provided for mounting inner panel. Includes hardware kit with panel mounting nuts and sealing washers for wall mounting holes. Hinges are constructed from 304 stainless steel. Hinge pins are stainless steel. Inner panel is included.
Standard
CSA
Sub Brand
CN4SB Series
Type
Type 4/3R Mild Steel Splitter Box
Package Dimensions (L x W x H)
7.7 IN x 18.7 IN x 26.4 IN
Package Dimensions (L x W x H)
19.558 cm x 47.498 cm x 67.056 cm
Package Weight (Imperial)
40.000 L
Package Weight (Metric)
18.144 kg
Panel 6.9 x 4.9 - Fits Encl. 8 x 6 - Alum

14A0705

Panel 6.9 x 4.9 - Fits Encl. 8 x 6 - Alum
Sealable and transparent protective covers BX4 and non-removable BX4-CA to protect the devices against accidental contact.

BX4

Sealable and transparent protective covers BX4 and non-removable BX4-CA to protect the devices against accidental contact.
Cord Grip with NPT Threads, Locknut Included, NPT Thread Size 3/8 Inch, Cable Range 0.181 Inch/4.6mm to 0.312 Inch/7.9mm, Hole Clearance 0.670 Inch/17.0mm, Thread Length 0.53 Inch/13.5mm, IP68 Rating, Nylon, Black

LH38

Cord Grip with NPT Threads, Locknut Included, NPT Thread Size 3/8 Inch, Cable Range 0.181 Inch/4.6mm to 0.312 Inch/7.9mm, Hole Clearance 0.670 Inch/17.0mm, Thread Length 0.53 Inch/13.5mm, IP68 Rating, Nylon, Black
EP-RJG-M20-BL-A

1SNG618003R0000

EP-RJG-M20-BL-A
1/2 Inch, Straight, One-Piece Liquidtight Non-Metallic Fitting, CSA, UL E32447, Temperatures up to 60 Degrees C, PVC, Grey

LN43DA

1/2 Inch, Straight, One-Piece Liquidtight Non-Metallic Fitting, CSA, UL E32447, Temperatures up to 60 Degrees C, PVC, Grey
1/2 Inch, 90 Degree, Two-Piece Liquidtight Non-Metallic Fitting, UL E32447, Temperatures up to 107 Degrees C, Nitril Rubber O-Ring, PVC, Grey

LT20D-NEW

1/2 Inch, 90 Degree, Two-Piece Liquidtight Non-Metallic Fitting, UL E32447, Temperatures up to 107 Degrees C, Nitril Rubber O-Ring, PVC, Grey
External operation handle 0-1 type S01 Red Nema 4,4x

140E2911

External operation handle 0-1 type S01 Red Nema 4,4x
Escutcheon black type B for Sircover 125-630A

44095015

Escutcheon black type B for Sircover 125-630A
12,80" x 12,80" filter fan - 115Vac - 285.3 cfm - RAL 7035 - Type 12

FF20A115UE1

12,80" x 12,80" filter fan - 115Vac - 285.3 cfm - RAL 7035 - Type 12
5,90" x 5,90" filter fan - 24Vdc - 20.6 cfm - RAL 9005 - Type 3R - IP55

FF12D24NN53

5,90" x 5,90" filter fan - 24Vdc - 20.6 cfm - RAL 9005 - Type 3R - IP55

Frequently Asked Questions about Hammond Manufacturing

What is Hammond Manufacturing's warranty policy?

Hammond Manufacturing provides a standard one-year warranty on all products, covering defects in workmanship and materials. Products will be repaired or replaced free of charge if found defective upon factory inspection. The warranty does not cover damage from improper handling, incorrect application, or faulty installation.

What certifications and standards do Hammond Manufacturing products comply with?

Hammond Manufacturing products are certified to UL (Underwriters Laboratories) and CSA (Canadian Standards Association) standards in North America. Our products meet rigorous safety and performance requirements, with many items classified as UL Listed Products or Recognized Components. We also comply with international certifications including China Compulsory Certification (CCC), C-Tick for Australian EMC requirements, and ANCE for Mexico.

What are the key features of Hammond Manufacturing products?

Hammond Manufacturing offers a comprehensive range of industrial enclosures and electrical components, including mild steel, stainless steel, aluminum, and non-metallic enclosures designed for diverse industrial applications. Their product lines cover critical industrial automation needs such as disconnect enclosures, operator interface enclosures, climate control solutions, and general accessories, with products engineered to meet Type 4, 4X, and 12 industrial standards.

What environmental ratings do Hammond Manufacturing products have?

Hammond Manufacturing offers enclosures with multiple environmental ratings across their product lines, including UL/cUL 508A ratings of Type 1, 2, 3, 4, 4X, 12, and 13. Their products also comply with IEC 60529 IP66 standards, providing robust protection against dust, water ingress, and harsh environmental conditions. Specific ratings vary by product series, with options ranging from indoor Type 1 enclosures to outdoor-rated Type 4X enclosures suitable for wet, corrosive, and high-temperature environments.

What industries and applications are Hammond Manufacturing products used for?

Hammond Manufacturing produces industrial enclosures and electrical components for multiple critical industries, including automation, electrical, audio, power systems, and control applications. Their product lines span mild steel, stainless steel, aluminum, and non-metallic enclosures designed for various NEMA types (Type 4, 4X, 12), as well as transformers, circuit board components, and climate control solutions for industrial and commercial environments.

What technical support does Hammond Manufacturing offer?

Hammond Manufacturing offers comprehensive technical support through multiple channels. Customers can access technical references and CAD downloads directly on www.hammondmfg.com, and can contact regional support teams via phone in Canada, the USA, and internationally. For custom design inquiries, their technical team provides personalized assistance, helping customers find standard solutions or develop custom transformer and electrical enclosure designs.

What are the main product lines offered by Hammond Manufacturing?

Hammond Manufacturing offers a comprehensive range of industrial enclosures, power supplies, and electronic packaging solutions. Their primary product lines include electrical and electronic enclosures, power transformers, heat sinks, PCI/PCIe card enclosures, and specialized mounting hardware for industrial automation and electronic applications.

What accessories are available for Hammond Manufacturing products?

Hammond Manufacturing offers a comprehensive range of accessories for their industrial enclosures and electrical components. Key accessories include HME Series handles (swing and lift handles with key locking and padlocking options), door stop kits, and light kit mounting brackets. They also provide standard hardware like screws, washers, and mounting accessories specific to different product lines.

How are Hammond Manufacturing products typically installed?

Hammond Manufacturing transformers are typically chassis-mounted using pre-drilled mounting holes and centers specified in their product dimension tables. Most models feature 3/16" diameter mounting holes and precise mounting centers, allowing for direct, secure installation onto equipment chassis or mounting plates. Installation requires aligning the transformer's mounting holes with corresponding mounting points and securing with appropriate fasteners.