Eaton FSQC5640 Interlocked Receptacle - Hazardous Locations

Part Number: FSQC5640
FSQC5640
Manufacturer
Eaton Crouse-Hinds
Part number
FSQC5640
Category

Quick Summary

FSQC5640 interlocked receptacle with switch provides hazardous-location power interlock for heavy-duty industrial equipment. For maintenance teams, accidental energization and unprotected access are common pains—this design prevents unintended operation in tough environments. It carries NEC/CEC compliance with Class I Division 1 & 2, Zone 1, plus Class II and Class III ratings, and offers robust protection under NEMA 3, 7, 9, 12. For manufacturers and integrators, the copper-free aluminum housing and brass contacts support longer service life, while the through-feed back box and 1-1/2 inch trade size streamline installation and reduce field wiring complexity.

Product Information

Extended Description

FSQC5640 Eaton Crouse-Hinds: Eaton Crouse-Hinds series Arktite FSQC interlocked receptacle with switch, 60A, Through feed, Three-wire, four-pole, Brass contacts, Copper-free aluminum, Spring door, 1-1/2", Three-pole switch, 120-600 Vac
Product Name
Eaton Crouse-Hinds series Arktite FSQC interlocked receptacle with switch
Catalog Number
FSQC5640
Product Length/Depth
6.35 in
Product Height
14.56 in
Product Width
7 in
Product Weight
13.2 lb
UPC
782274981260
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 1 Class I, Zone 1 Class I, Division 2 Class II, Division 1 Class II, Division 2 Class III
NEMA Rating
3 7 9 12
Amperage Rating
60A
Trade size
1-1/2"
Configuration
Three-wire, four-pole
Receptacle style
Spring door
Back box style
Through feed
Voltage rating
120-600 Vac
Material
Copper-free aluminum
Contact material
Brass
Type
Three-pole switch
Eaton Crouse-Hinds FSQC5640 3D drawing SP3D Design Package - Arktite FSQC Explosionproof Interlocked Receptacles Arktite FSQC Explosionproof Interlock Receptacles catalog page Arktite FSQC Explosionproof Interlock Receptacles UL certification Arktite FSQC Explosionproof Interlock Receptacles UL certification IF 83 - FSQ Interlocked Receptacle and Switch - Class I, Group B Hazardous (Classified) Locations IF 83 - FSQ Interlocked Receptacle and Switch - Class I, Group B Hazardous (Classified) Locations IF 83 - FSQ Interlocked Receptacle and Switch - Class I, Group B Hazardous (Classified) Locations IF 83 - FSQ Interlocked Receptacle and Switch - Class I, Group B Hazardous (Classified) Locations IF 83 - FSQ Interlocked Receptacle and Switch - Class I, Group B Hazardous (Classified) Locations Eaton Specification Sheet - FSQC5640
Feature: Interlocked receptacle with a dedicated three-pole switch. Business Impact: Prevents accidental energization and enables lockout-safe maintenance in hazardous locations. Application: Suitable for Class I/II/III environments with NEC/CEC compliance. Feature: 60A amperage rating with 1-1/2" trade size. Business Impact: Supports high-current motors and equipment with minimal voltage drop, reducing downtime. Application: Heavy-load industrial applications such as pumps and compressors in hazardous areas. Feature: Through-feed back box design. Business Impact: Simplifies wiring runs and cabling management, accelerating panel assembly. Application: Control panels and remote feeder connections in rugged facilities. Feature: Copper-free aluminum housing with brass contacts. Business Impact: Enhances corrosion resistance and durability while maintaining reliable electrical contact. Application: Outdoor or chemical processing plants where harsh conditions are common. Feature: Receptacle style with spring door. Business Impact: Improves seal integrity and field maintenance access, lowering maintenance costs over time. Application: Hazardous-location interlock assemblies in harsh environments. Feature: Wide voltage range 120–600 Vac and NEMA ratings 3, 7, 9, 12. Business Impact: Enables flexible sourcing and design compatibility across equipment and geographies, ensuring code compliance. Application: Universal power interlock solutions for mixed-load facilities and international installations.

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FAQs

FSQC5640 is designed for hazardous locations with a through-feed back box and a 1-1/2" trade size. Follow IF 83 and related Eaton installation sheets to ensure proper wiring of the three-wire, four-pole switch and to maintain lockout integrity. Always verify NEC/CEC compliance and UL certifications for your specific enclosure and ambient conditions.
FSQC5640 supports a 60A amperage rating with a trade size of 1-1/2". It is configured as three-wire, four-pole and operates across a voltage range of 120–600 Vac. The receptacle uses brass contacts and a spring-door design for reliable, high-current connections in demanding environments.
Yes. FSQC5640 is approved for NEC/CEC compliance and hazardous-location ratings including Class I Division 1 & 2, Zone 1, as well as Class II and Class III. It also aligns with NEMA ratings 3, 7, 9, and 12, ensuring safe operation and regulatory conformity in explosion-threat environments.
The housing is copper-free aluminum for corrosion resistance and lighter weight, paired with brass contact material for durable, reliable electrical connections. This combination supports long service life in harsh industrial settings and helps maintain good contact performance under high current.
Access Eaton’s FSQC5640 resources, including 3D CAD drawing packages, SP3D design packages, installation sheets (IF 83 series for hazardous locations), product catalog pages, and UL certifications. These materials support accurate design, proper installation, and verified compliance for hazardous-location interlocked receptacles.