Eaton air conditioning disconnect B221-30FGFST - UL Listed
Part Number: B221-30FGFST
Quick Summary
Eaton air conditioning disconnect B221-30FGFST is a fused pullout switch optimized for safe, code-compliant isolation of HVAC equipment in both commercial and residential installations. Many projects struggle with fuse maintenance, accurate fault protection during service windows, and rapid replacement without compromising safety. This unit is UL Listed for safety, features a NEMA 3R galvanized steel enclosure for outdoor or damp environments, and delivers a 10 kAIC interrupt rating for robust protection. Designed for compatibility with Bussmann series fuses and standard 120/240 V HVAC wiring, it helps reduce installation time while delivering reliable fault isolation and long-term operating cost savings.
Product Information
Extended Description
B221-30FGFST Eaton: Eaton air conditioning disconnect, Bussmann series 30A FUSIBLE GFCI, 120/240V, 30A, 10 kAIC, Fused pullout, NEMA 3R, ANSI 61 gray
Product Name
Eaton air conditioning disconnect
Catalog Number
B221-30FGFST
UPC
786685982267
Product Length/Depth
0.01 in
Product Height
0.01 in
Product Width
0.01 in
Product Weight
0.01 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Certifications
UL Listed
Type
Fused pullout
Amperage Rating
30A
Voltage rating
120/240 V
Wire size
#14-3 AWG Cu/Al
Color
ANSI 61 gray
Enclosure
NEMA 3R
Enclosure material
Galvanized steel
Interrupt rating
10 kAIC
Receptacle
20 A ground fault self-test receptacle
Residential and Light Commercial, Air Conditioning Disconnects, Volume 1 Tab 6
Residential and Light Commercial, Air Conditioning Disconnects, Volume 1 Tab 6
Eaton Specification Sheet - B221-30FGFST
Bussmann series Fused and non-fused HVAC disconnects data sheet no. 1143
Bussmann series Fused and non-fused HVAC disconnects data sheet no. 1143
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: 30A current rating, 120/240 V operation, and fused pullout design provide immediate fault isolation while enabling quick fuse replacement, reducing downtime and service costs on HVAC equipment in both rooftops and mechanical rooms. Application: ideal for residential and light commercial air conditioning systems that require dependable protection and straightforward maintenance. Feature → Business Impact → Application: 10 kAIC interrupt rating delivers high fault current protection, minimizing the risk of equipment damage during surge events. Application: suitable for outdoor HVAC disconnects where reliability is critical in variable weather conditions. Feature → Business Impact → Application: NEMA 3R galvanized steel enclosure supports outdoor installations with corrosion resistance and weather sealing, improving outdoor durability and compliance with safety codes. Application: outdoor condenser units and heat pump installations. Feature → Business Impact → Application: 20 A ground fault self-test receptacle enhances safety oversight and fault detection, aiding quick fault pinpointing during commissioning and routine checks. Application: service panels and disconnect enclosures that require GFCI-protected outlets. Feature → Business Impact → Application: Wire size compatibility (#14-3 AWG Cu/Al) simplifies field wiring, reduces the need for adapters, and improves termination reliability. Application: standard HVAC branch circuits and control wiring. Feature → Business Impact → Application: UL Listed certification guarantees compliance with industry standards and customer specifications, supporting procurement and installation approvals. Application: building projects pursuing strict electrical compliance. Feature → Business Impact → Application: Warranty policy (one year from install or 18 months from shipment) reduces lifecycle risk and provides confidence during system commissioning. Application: capital projects and maintenance programs seeking predictable total cost of ownership.
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FAQs
Install the B221-30FGFST as a fused pullout disconnect in the branch circuit feeding the HVAC condenser or air handler. Use #14-3 AWG Cu/Al conductors, ensure the enclosure is mounted in a suitable outdoor or dry location per NEMA 3R requirements, and connect to the corresponding control wiring and 120/240 V supply. Verify the 30 A fuse is installed and perform a functional test with the GFCI receptacle to confirm proper leakage protection.
Key ratings are a 30A current rating, 120/240 V voltage, and a 10 kAIC interrupt rating. This means it can safely interrupt high fault currents up to 10 kA at the given voltage, which is suitable for most residential and light commercial HVAC loads. Wire sizing supports #14-3 AWG Cu/Al for robust, compliant terminations.
Yes. The B221-30FGFST is designed for use with Bussmann series fuses and standard 120/240 V HVAC wiring practices. Its fused pullout design simplifies fuse replacement on service calls, and standard conductor size helps ensure straightforward, code-compliant terminations during installation.
UL Listed indicates the unit meets recognized safety standards, which can streamline procurement and installation approvals. The NEMA 3R enclosure provides weather resistance and protection against ingress in outdoor or damp environments, making the disconnect suitable for rooftop or exterior mechanical installations without compromising safety.
The model is backed by Eaton’s warranty policy: one year from installation or eighteen months from shipment, whichever occurs first. This reduces lifecycle risk and supports predictable maintenance budgeting, helping to justify upfront investment through lower long-term downtime costs and supplier accountability.