Eaton FER1B2821SN Bayonet Receptacle - Fire & Smoke Certified
Part Number: FER1B2821SN
Quick Summary
Eaton FER1B2821SN bayonet receptacle is designed for fire-rated interconnects in control panels and industrial machinery. The challenge it solves is delivering high-contact density and reliable sealing while meeting stringent safety and environmental standards. The part carries IP67 protection, fire and smoke certification, and UL94 V0 flammability, helping you pass demanding regulatory requirements without redesign. With 37 #16 crimp contacts and a square flange receptacle design, it simplifies harness integration and panel mounting in compact spaces. This combination supports improved mean time between maintenance, easier replacement in the field, and compatibility with standard crimp terminations—delivering value to OEMs and end users alike.
Product Information
Extended Description
FER1B2821SN Eaton: Female square flange receptacle for 37 #16 contacts, insulator orientation N; FER1B2821SN
Product Name
Eaton Souriau VGE1-FER1 series fire and smoke certified bayonet connector
Catalog Number
FER1B2821SN
Product Length/Depth
50.8 mm
Product Height
50.8 mm
Product Width
48 mm
Product Weight
105 g
Environmental conditions
REACH RoHS Fire & Smoke Flammability rating UL94 V0
Connector accessory option
Not delivered, to be ordered separately
Connector orientation
N
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
Feature: Fire and smoke certified performance and IP67 protection. Business Impact: Ensures regulatory compliance and reliable operation in harsh environments, reducing risk and downtime. Application: Control panels in manufacturing lines and outdoor installations where safety and ingress protection are required. Feature: 37 #16 crimp contacts arranged in a 21-position layout. Business Impact: High-density wiring with reliable signal integrity, enabling more complex harnesses without increasing panel footprint. Application: Robot controllers and process automation gear with tight enclosure constraints. Feature: Aluminum shell with 28 mm shell size and square flange receptacle. Business Impact: Lightweight, durable housing that facilitates installation, corrosion resistance, and ease of panel mounting. Application: Harsh industrial environments and aerospace-adjacent equipment where weight and durability matter. Feature: Thread coupling and N orientation. Business Impact: Secure mating with straightforward alignment, minimizing rework during assembly. Application: Field replacements and new panel builds requiring robust retention and ease of maintenance. Feature: Wide operating temperature range (-40 °C to 100 °C) and 500 mating cycles. Business Impact: Long-term reliability under temperature extremes and frequent mating/demating, lowering upkeep costs. Application: Machinery in automotive, packaging, and process industries where temperature swings occur. Feature: 37-contact configuration, IP67, and RoHS/REACH compliance. Business Impact: Safe, compliant connectivity with reduced regulatory risk. Application: Medical, industrial automation, and energy systems requiring sealed, compliant interconnects.
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FAQs
FER1B2821SN is a square flange receptacle designed for flange mounting with a 50.8 mm length/height and 48 mm width. It uses a thread coupling and provides 37 #16 crimp contacts in a 21-position layout, compatible with standard Eaton Souriau crimps. This simplifies panel integration and ensures a sturdy, sealed connection in compact enclosures.
Yes. The connector operates from -40 °C to 100 °C, enabling reliable performance across wide industrial temperature swings. Its aluminum shell and IP67 rating add additional resilience against dust, moisture, and harsh conditions, making it suitable for machinery, outdoor installations, and process automation exposed to temperature variation.
The device features 37 contact cavities for #16 crimp terminals in a 21-position layout, an IP67 sealing level, and an aluminum shell (shell size 28). It supports up to 500 mating cycles and operates between -40 and 100 °C. Certifications include REACH, RoHS, and UL94 V0, aligning with safety and regulatory requirements.
FER1B2821SN carries fire and smoke certification (UL94 V0) along with REACH and RoHS compliance, and IP67 ingress protection. These certifications help you meet industry safety standards for equipment exposed to flame risks and environmental hazards, supporting regulatory approvals, customer audits, and long-term product qualification.
The 500 mating cycle rating, secure thread coupling, and square flange receptacle design minimize mating misalignment and wear, extending service life. The 37 contact density enables complex harnessing without added panel depth, while IP67 protection preserves reliability in dirty or wet environments, reducing replacement frequency and downtime during maintenance.