Several Junction Boxes are built for use in harsh, EMI/RFI applications. Ours are built to save you money.
Glenair is the recognized leader in composite thermoplastic research and development for the interconnect accessory industry. Glenair's lightweight/high-strength CostSaver Composite EMI/RFI Junction Boxes are ideally suited for use in harsh environments where resistance to electromagnetic interference, corrosive fluids, high temperatures, shock and vibration is a critical requirement.
The boxes are designed to meet the shock and vibration requirements of MIL-S-901D and MIL-STD-167SHIPS. Box materials also meet stringent EMI/RFI/HIRF and indirect lightning strike performance specifications.
- General Information
- Glenair Announces: 140 Series EMI/RFI Composite Boxes
- Design Guide
- Electrical Performance Specifications
- Box Specification Worksheet (PDF)
- Online Worksheet Submission Form
Box series numbers are for reference only. Please complete the online box specification worksheet for your specific box configuration.
Product Selection Guide![]() |
Series 140-074Ultra-Miniature Junction Box Product Facts and Dimensional Details |
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Series 140-100Mini Junction Box |
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Series 140-101Small Junction Box |
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Series 140-102Medium Junction Box |
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Series 140-103Large Junction Box |
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Series 140-104Small Low-Profile Box |
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Series 140-105Medium Low-Profile Box |
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Series 140-106Small Three-Legged Junction Box |
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Series 140-107Jumbo Junction Box |
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Series 140-200Octagonal Junction Box |
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Series 140-20312 Port Rectangular Junction Box |
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630-030Composite Thru-Box, Panel and Bulkhead RFI/EMI/Environmental Banding Adapter |
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630-031Composite Thru-Box, Panel and Bulkhead Universal Environmental Adapter |
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637-094Composite Box Conduit or Cable Feed-Through Adapter Series |
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687-466Terminal Rail and Block Mounting Plate To Fit Rectangular Boxes |
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687-305-22Round Internal Mounting Plate To Fit Three-Legged Boxes |
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687-467Slotted Terminal Block Mounting Rail |
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687-461Hole Cap Assembly |


















