Junction Boxes

Partnering with defense contractors to deliver ruggedized, combat-ready junction boxes engineered for extreme environments. Frigate’s MIL-SPEC compliant enclosures ensure uninterrupted signal integrity and maximum shielding for mission-critical aerospace, naval, and land systems.

Material Base

Marine-grade Aluminum (6061-T6) / AISI 316L Stainless Steel / Armor Plate

Ingress Protection

IP67 / IP68 / IP69K (NEMA 4X, 6P, 13 compliant)

Military Standard Compliance

MIL-STD-810H (Environmental), MIL-STD-461G (EMI/RFI shielding)

Shock & Vibration

MIL-STD-901E (High-impact shipboard shock), MIL-STD-167-1A

Surface Finish

Chemical Agent Resistant Coating (CARC) / Olive Drab / Desert Tan

Order Type

Quantity Range

Lead Time*

Sample & First Article (FAIR)

1 – 5 Units

3 – 4 Weeks

Low-Rate Initial Production (LRIP)

6 – 50 Units

6 – 8 Weeks

Full-Rate Production (FRP)

51 – 250 Units

10 – 12 Weeks

High-Volume Contract Delivery

250+ Units

Scheduled staggered releases / Annual call-offs

*Timelines are indicative and depend on raw material availability, custom CNC tooling, and MIL-SPEC testing requirements. Actual schedules are finalized upon design lock.

Product Description

Frigate’s defense-grade junction boxes are custom-engineered to safeguard complex electrical architectures against severe mechanical shock, vibration, and electromagnetic interference. Built from high-grade ballistic materials and advanced corrosion-resistant alloys, these enclosures guarantee operational reliability in theater.

Operating Temperature

-55°C to +125°C (-67°F to +257°F)

Shielding Effectiveness

Up to 80 dB attenuation from 10 kHz to 10 GHz

Gasket Material

Conductive Silicone-Fluorosilicone with woven Monel/Aluminum wire mesh

Cable Entry/Glands

MIL-DTL-38999 series circular connector cutouts or specialized cable glands

Grounding Provision

Internal and external dual-stud copper grounding terminals (MIL-B-5087B)

Mounting Configurations

Integrated heavy-duty shock-isolation mounts / Direct wall mount flanges

Explosive Atmosphere

ATEX / IECEx Zone 1 and 2, Class I Div 1 & 2 compliant options

Locking & Latching

Tool-activated quick-release quarter-turn fasteners / Padlockable HASP

Salt Spray Resistance

ASTM B117 salt fog tested up to 1,000 hours

Customization Scope

CNC precision milling for custom I/O ports, internal DIN rails, and backplates

Technical Advantages

Our junction boxes feature advanced, certified EMI/RFI shielding gaskets that prevent signal degradation and eavesdropping in high-risk electronic warfare environments. Additionally, the integration of heavy-duty, IP67/68-rated ingress protection ensures total sealing against chemical CBRN defense washdowns, deep submersion, and fine desert sand.

Let's Get Started

Need reliable Enclosure for your next project? Get in touch with us today, and we’ll help you find exactly what you need!

Industry Applications

Naval & Maritime Systems

Engineered for warships and submarines, providing severe salt-fog corrosion resistance and high-impact shock protection for radar and weapon control systems.

Aerospace & Avionics

Ultra-lightweight aluminum enclosures designed for military aircraft, UAV ground stations, and telemetry systems, ensuring zero electromagnetic interference.

Armored Ground Vehicles

Ruggedized junction boxes deployed in tanks and APCs to manage power and communications distribution under extreme vibration and ballistic shock.

Missile Defense Systems

High-reliability distribution hubs configured with precise shielding to maintain absolute signal integrity for missile guidance and launcher arrays.

Tactical Communication Networks

Field-deployable, rugged power and data routing boxes built for mobile command centers, C4ISR systems, and temporary military base networks.

Electronic Warfare (EW) Pods

Specialized, high-attenuation enclosures housing sensitive signal-jamming and threat-detection electronics, preventing external signal breach.

Frigate Approved Quality Management System

At Frigate, quality is built into every stage of manufacturing. Our approved Quality Management System ensures that every material component.

Incoming Material Checking

Before production begins, all incoming materials are checked against specifications, drawings, and supplier documents.

In-Process Inspection

Quality is monitored during manufacturing to prevent defects and maintain process consistency.

Final Dimensional Checking

Finished parts are inspected before dispatch to confirm compliance with customer drawings and tolerances.

Packaging Control

Finished components are packed safely to prevent damage during handling and transportation.

Incoming Material Checking

In-Process Inspection

Final Dimensional Checking

Packaging Control

Quality Document

To help buyers evaluate our quality systems, we provide sample documents that reflect our inspection and reporting standards.

How We Delivered

Complex geometries engineered solutions that move businesses forward.

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Having Doubts? Our FAQ

Can Frigate customize the junction box layout according to specific drawing formats?

Yes. Our engineering team directly ingests STEP, IGES, and SolidWorks files to precision-machine custom connector layouts, internal mounting standoffs, and non-standard form factors to match your system blueprints.

Are Frigate’s defense junction boxes supplied with material and compliance certifications?

Absolutely. Every defense-grade shipment is accompanied by a comprehensive quality pack, including Certificates of Conformance (CoC), mill test reports for raw materials, CARC paint thickness compliance, and standard internal inspection reports.

How does Frigate ensure the EMI/RFI shielding effectiveness requested by defense clients?

We utilize specialized conductive fluorosilicone and wire-mesh co-extruded gaskets combined with precise structural overlapping joints. This layout satisfies MIL-STD-461G requirements, blocking electromagnetic interference and securing signals.

Can you accommodate specific combat-ready coatings like CARC?

Yes. We offer fully compliant Chemical Agent Resistant Coating (CARC) painting systems in standard military shades (including Desert Tan and Olive Drab) that resist chemical warfare agents and decontamination washdowns.

What options are available for shock and vibration isolation?

Frigate integrates specialized MIL-STD-901E compliant shock-absorbing mounts, elastomeric dampeners, or heavy-duty reinforced mounting flanges directly onto the enclosure body to mitigate high-impact kinetic energy and heavy vibration.

We'd love to Manufacture for you!

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LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

Other Locations

GENERAL ENQUIRIES

LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Components Built for Critical Performance

Engineered Products for Critical Applications

Junction Boxes

Order Type

Quantity Range

Lead Time*

Product Description

Operating Temperature

Shielding Effectiveness

Gasket Material

Cable Entry/Glands

Grounding Provision

Mounting Configurations

Explosive Atmosphere

Locking & Latching

Salt Spray Resistance

Customization Scope

Technical Advantages

Let's Get Started

Industry Applications

Frigate Approved Quality Management System

Quality Document

How We Delivered

Having Doubts? Our FAQ

We'd love to Manufacture for you!

LOCATIONS

Registered Office

Operations Office

Other Locations

GENERAL ENQUIRIES

LOCATIONS

Registered Office

Other Locations

GENERAL ENQUIRIES

Get Your Quote Now

Junction Boxes

Get Latest Price

Junction Boxes

Get Latest Price