Boxes

Part Number	Description / PDF	Quantity
TF771 PLAIN LMB Heeger, Inc.	CHASSIS ALUM 2.75"L X 2.13"W	1
CR-211 PLN LMB Heeger, Inc.	CHASSIS ALUM UNPTD 2.25"LX1.5"W	27
MDC1183 PLAIN LMB Heeger, Inc.	CONSOLE ALUM UNPAINTED 11"LX8"W	1
TF787 PLAIN LMB Heeger, Inc.	CHASSIS ALUM UNPAINTED 12"LX7"W	5
CR532 PLAIN LMB Heeger, Inc.	CHASSIS ALUM UNPTD 5.25"L X 3"W	5
J870 PLAIN LMB Heeger, Inc.	CHASSIS ALUM 2.75"L X 2.13"W	26
J883 PLAIN LMB Heeger, Inc.	CHASSIS ALUM UNPAINTED 8"L X 6"W	0
TF788 PLAIN LMB Heeger, Inc.	CHASSIS ALUM UNPAINTED 17"LX5"W	0
TF-781 PL/UNPD LMB Heeger, Inc.	CHASSIS ALUM UNPAINTED 6"L X 5"W	3
UPS 525-14-7 PLAIN LMB Heeger, Inc.	CABINET ALUM 6.88"L X 13.75"W	3
PERF-140 PLAIN LMB Heeger, Inc.	BOX CHASSIS ALUM UNPTD 3"L X 4"W	0
TF783 PLAIN LMB Heeger, Inc.	CHASSIS ALUM UNPAINTED 8"L X 6"W	11
J882 PLAIN LMB Heeger, Inc.	CHASSIS ALUM UNPAINTED 7"L X 5"W	4
UNC 3 1/2-6-7 PLAIN LMB Heeger, Inc.	CABINET ALUM UNPTD 7"L X 6"W	2
PERF-135 PLAIN LMB Heeger, Inc.	BOX CHASSIS ALUM 2.75"L X 3"W	0
PERF-101 PLAIN LMB Heeger, Inc.	BOX CHASSIS ALUM 4.25"L X 2.25"W	16
UPS 525-14-7-BLUE/WHITE LMB Heeger, Inc.	CABINET ALUM 6.88"L X 13.75"W	3
PERF-138 PLAIN LMB Heeger, Inc.	BOX CHASSIS ALUM 6.25"L X 3.5"W	9
J879 PLAIN LMB Heeger, Inc.	CHASSIS ALUM UNPAINTED 5"L X 4"W	3
MDC642 PLAIN LMB Heeger, Inc.	CONSOLE ALUM UNPAINTED 6"L X 4"W	27

Boxes

1. Overview

Boxes, enclosures, and racks are critical components for housing, protecting, and organizing electronic, electrical, and mechanical systems. Boxes provide physical protection for individual devices, enclosures offer environmental and safety shielding, while racks standardize mounting and space utilization. These solutions ensure operational reliability, thermal management, and efficient system integration across industries.

2. Main Types and Functional Classification

Type	Functional Features	Application Examples
Boxes	Compact protection with portability	Instrument cases, outdoor equipment
Enclosures	Environmental sealing (IP ratings)	Industrial control panels, telecom cabinets
Racks	Standardized 19"/23" mounting	Data center servers, audio/video systems

3. Structure and Components

Typical construction includes:

Material: Steel/aluminum alloys (80%+ market share), polycarbonate
Thermal management: Vented panels, fan systems (40-60 CFM airflow)
Mounting: DIN rails, adjustable shelves, cable glands
Protection: Gaskets (IP54-IP68), EMI shielding coatings

4. Key Technical Specifications

Parameter	Importance	Typical Range
IP Rating	Environmental protection	IP20-IP68
Load Capacity	Structural integrity	50-2000 kg
Thermal Dissipation	Electronics longevity	100-3000 W/m
Dimensional Tolerance	Installation compatibility	0.5-2 mm

5. Application Fields

Key industries include:

IT & Telecom: Server racks (19" standard), 5G base stations
Industrial Automation: PLC control cabinets (IP65-rated)
Medical: MRI machine enclosures (EMI shielding)
Energy: Solar inverter boxes (IP66 protection)

6. Leading Manufacturers

Company	Representative Product
Panduit	NetShelter VX enclosures
Rittal	TS 8 cabinet series
Schneider Electric	APC NetShelter racks
Hammond Manufacturing	1551XX enclosures

7. Selection Recommendations

Key considerations:

Environmental factors: Temperature (-40 C to +70 C operational range)
Space requirements: 1U-42U rack heights (1U=44.45mm)
Future scalability: 20-30% capacity margin
Compliance: UL508A (industrial), NEMA ratings

8. Industry Trends

Emerging developments:

Smart enclosures with IoT sensors (temperature/vibration monitoring)
Modular hybrid systems combining boxes & racks
Advanced materials: Graphene-coated composites (30% lighter)
Edge computing optimization: Compact 19" enclosures with integrated cooling