Eaton GUSC3120 40 GB Explosionproof Load Center - Group B

Part Number: GUSC3120 40 GB
Eaton Crouse-Hinds logo
Manufacturer
Eaton Crouse-Hinds
Part number
GUSC3120 40 GB

Quick Summary

GUSC3120 40 GB is an explosionproof circuit breaker load center designed for hazardous-location power distribution in industrial facilities. This solution addresses common pain points around safety, reliability, and regulatory compliance by delivering a rugged enclosure that withstands harsh environments and frequent inspections. It carries NEC/CEC compliance, hazardous-location ratings (Class I, Division 1 & 2; Class II, Division 1 & 2; Class III) and NEMA ratings 3, 7, 9, 12, ensuring sound performance in demanding settings. By integrating this load center, engineers gain safer, code-compliant protection within a compact footprint, enabling easier installation and reducing lifecycle costs through durable components and proven safety characteristics.

Product Information

Extended Description

GUSC3120 40 GB Eaton Crouse-Hinds: Eaton Crouse-Hinds series GUSC circuit breaker load center, 40A, Feraloy iron alloy, 1 breaker, Two-pole, Group B rated, 1" trade size, 240 Vac
Product Name
Eaton Crouse-Hinds series GUSC circuit breaker load center
Catalog Number
GUSC3120 40 GB
UPC
782274909691
Product Length/Depth
7.75 in
Product Height
7.81 in
Product Width
5.81 in
Product Weight
18 lb
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 1 Class I, Division 2 Class II, Division 1 Class II, Division 2 Class III
NEMA Rating
3 7 9 12
Number of breakers
1
Number Of Poles
Two-pole
Amperage Rating
40A
Trade size
1"
Material
Feraloy iron alloy
Voltage rating
240 Vac
Special features
Group B rated
Explosionproof enclosure and rugged Crouse-Hinds construction protect critical circuits in hazardous locations, reducing ignition risk and enabling compliant installations in chemical plants and refineries. Business impact: safer equipment operation, lower downtime due to fewer containment-related incidents. Application: use as the primary protective point for 240 VAC circuits where hazardous classifications apply. The 40A amperage rating with a 1" trade size and two-pole configuration supports essential motor and branch circuits without overfilling panels, delivering space-efficient protection for compact electrical rooms. Business impact: simplified panel design and faster commissioning. Application: retrofit projects and new builds requiring reliable 240 VAC distribution in hazardous areas. Group B rated protection enhances selective coordination with upstream devices, improving fault isolation and limiting system-wide outages. Application: process instrumentation circuits and critical controls where uptime is essential. NEC/CEC compliance paired with Area classification for Hazardous/Classified Locations and NEMA ratings 3, 7, 9, 12 translates to faster inspections and reduced regulatory risk. Application: facilities in regulated industries with stringent safety standards. The compact dimensions—7.75 in length, 7.81 in height, 5.81 in width—and 18 lb weight simplify installation and retrofit projects with tight footprints. Business impact: easier mounting and expedited project timelines. Material underpins durability in harsh environments, supporting long service life and lower maintenance costs. Application: sustained operation in demanding industrial settings.

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FAQs

When installing the GUSC3120 40 GB, ensure the location meets hazardous-classified criteria (Class I, II, III as applicable) and use proper enclosure mounting as specified by the NEC/CEC. Verify 240 VAC supply, a single 2-pole 40A breaker, and a 1-inch trade size to align with the unit’s dimensional footprint. Proper bonding and grounding must be observed to maintain compliance and safety.
Yes. The GUSC3120 40 GB is designed for hazardous locations with NEC/CEC standards in mind and offers area classifications appropriate for Class I, Division 1 and 2, Class II, Division 1 and 2, and Class III. It also carries compatible NEMA ratings (3, 7, 9, 12), supporting regulatory inspections and safe operation in demanding industrial environments.
The unit provides a robust 40A protection point for single, two-pole circuits, suitable for motor control and branch circuits in hazardous areas. Its explosionproof design minimizes ignition risk, while the Group B rating improves selective coordination with upstream devices. This combination yields improved uptime, safer operation, and reduced likelihood of nuisance outages in process facilities.
The GUSC3120 carries NEC/CEC compliance, hazard area classifications (Class I, Division 1 and 2; Class II, Division 1 and 2; Class III), and NEMA ratings 3, 7, 9, 12. It is built for hazardous locations and aligns with standards for installation in regulated industrial environments, supporting fast audits and safer electrical distribution.
The GUSC3120 40 GB is configured for a single 2-pole 40A circuit, 240 VAC. For larger installations, consider deploying additional GUSC units in parallel or as part of a coordinated protection scheme to scale protection points while maintaining explosionproof integrity and consistent compliance across the system.