Eaton FER1B2821SW Bayonet Receptacle - Fire & Smoke IP67
Part Number: FER1B2821SW
Quick Summary
Eaton FER1B2821SW is a fire and smoke certified bayonet receptacle for rugged industrial and aerospace harnesses. Engineers often struggle to keep connectors sealed, reliable under vibration, and compliant with fire safety requirements in harsh environments. This design delivers IP67 sealing, a robust aluminum shell, and RoHS/REACH compliance, supporting long service life in safety-critical systems. With 37 crimp #16 contacts in a square flange footprint, it enables compact, serviceable assemblies and straightforward field maintenance. The combination of high mating cycles, broad temperature range, and clear certification helps reduce downtime and simplify supplier management for aerospace, rail, and industrial automation.
Product Information
Extended Description
FER1B2821SW Eaton: Female square flange receptacle for 37 #16 contacts, insulator orientation W; FER1B2821SW
Product Name
Eaton Souriau VGE1-FER1 series fire and smoke certified bayonet connector
Catalog Number
FER1B2821SW
Product Length/Depth
50.8 mm
Product Height
50.8 mm
Product Width
48 mm
Product Weight
105 g
Environmental conditions
RoHS Fire & Smoke REACH Flammability rating UL94 V0
Connector accessory option
Not delivered, to be ordered separately
Connector orientation
W
Connector type
Receptacle
Contact delivery
Not delivered
Contact gender
Socket (Female)
Contact type
Crimp
Coupling type
Thread
Degree of protection
IP67
Layout
21
Shell continuity
20.0
Shell material
Aluminium
Shell size
28
Mating cycles
500
Operating temperature - max
100 °C
Operating temperature - min
-40 °C
Receptacle type
Square Flange Receptacle
Number Of Contacts
37
Number of cavity #16
37
Salt spray
500 hour
IP67 sealing keeps moisture and particulates out of the contact interface, delivering predictable performance and lower maintenance costs in outdoor and wash-down environments. This is essential for equipment operating in rail yards, mining, or outdoor automation. The result is fewer unscheduled repairs and longer service life for critical connections. Fire and smoke certification ensures compliance with stringent safety standards, increasing risk mitigation in life-safety systems. This feature translates to safer control panels in industrial plants and transit infrastructure. Installation teams can rely on the documented certification to meet regulatory requirements without additional testing. Aluminium shell provides a strong yet light-weight housing, aiding in enclosure density and handling during assembly. The 28 shell size with 50.8 mm length/height and 105 g weight supports compact, efficient harness designs. With 500 mating cycles, the connector accommodates frequent field servicing while keeping contact integrity. Operational temperature range from -40 to 100 °C supports performance under thermal cycling, reducing the need for alternative components in extreme environments. Salt spray resistance to 500 hours demonstrates corrosion resistance in coastal or high-humidity settings, extending service life. 37 crimp #16 contacts across 37 cavities offers flexible harnessing with common crimp tooling. Accessory options are not delivered by default and must be ordered separately, enabling tailored configurations for each program.
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FAQs
FER1B2821SW is designed as part of the Souriau VGE1-FER1 series and uses 37 crimp #16 contacts in a square flange receptacle. It supports bayonet coupling and a W orientation for mating, ensuring reliable integration with matching Souriau connectors and standard crimp tooling commonly used in aerospace and heavy industry harnesses.
The receptacle features a square flange with a footprint suitable for 28 shell size. Primary dimensions include a length/depth of 50.8 mm, a height of 50.8 mm, and a width of 48 mm, enabling compact installations in constrained enclosures and control panels without compromising ruggedness.
Yes. It is IP67-rated for dust and immersion protection, and it carries fire and smoke certification, aligning with UL94 V0 flammability ratings. It also complies with RoHS and REACH, supporting regulatory acceptance in global programs and safety-critical systems.
A 37-contact arrangement supports complex signaling and power needs within a single connector, reducing interconnect count and panel space. With crimp #16 contacts, it enables robust, reproducible terminations using standard tooling, simplifying assembly and repair workflows in aerospace, rail, and industrial automation environments.
Note that contact delivery is not included by default; you must order the contact kit separately. The connector uses bayonet coupling for quick mating, and operates from -40 °C to 100 °C with IP67 protection. Plan for an appropriate mounting kit and sealing provisions to ensure optimal performance in your specific environment.