40,000+ parts catalogued Same-day shipping before 3PM ET 4.9/5 from 2,100+ reviews 1-year warranty, all conditions
CREDENTIALS Independent distributor since 1998 | UL-listed & NEC-compliant stock | Bench-tested to published trip curves | 1,400+ contractor & plant accounts
Looking for an obsolete or discontinued part?
We stock legacy Square D, Westinghouse, and GE frames and cross-reference old catalog numbers against what's CROSS-REFERENCE A PART
on the shelf. Send a nameplate photo — most parts are identified within the hour.
Shop Electrical Components by Category
Six product lines, filterable by amp rating, voltage, poles, and manufacturer.
Circuit Breakers
Molded case, I-Line, bolt-on, 15A–
3000A →
Motor Starters
NEMA sizes 00–5 and IEC contactors → .
Fuses
Class J, R, L, T and RK5 time-delay →
Safety Switches
Fusible & non-fusible disconnects,
NEMA 1–4X →
Connectors & Lugs
Compression lugs, splices, grounding
→
Transformers
Dry-type control & distribution, 75–
500 kVA →
Best Sellers This Month
Price, availability, and rating on every card All best sellers →
FAL34020
Square D FAL 3-Pole
20A Breaker
★★★★★ 4.9 (32)
$189.00 In Stock
8536SCO3V02S
Square D Size 1 Magnetic Starter
★★★★★ 4.8 (54)
$412.00 In Stock
8536SCO3V02S
Square D Size 1 Magnetic Starter
★★★★★ 4.8 (54)
$412.00 In Stock
H364
Square D 200A Fusible Disconnect
★★★★☆ 4.7 (41)
$638.00 3 Left
Our Team
Y O U W O R K H A R D
But supply and operational issues are costing you. There's a better way.
Back orders, wrong parts, and distributors who won't pick up the phone turn a two-hour repair into a two-day outage. You deserve a partner that gets it right the first time.
1
Responsive
On time isn't a goal — it's our standard.
2
Credible
Our reputation for
quality products and service is unmatched
3
Reliable
Sharp industry
experts means we're the pros you can count on
Why Buyers Choose JW Over a National Distributor
The comparison procurement teams actually run.
JW Electrical Supply
Typical national distributor
Quote turnaround
Under 1 hour, from a specialist
1–3 business days
Obsolete & discontinued parts
Core inventory, cross-referenced
Special order or unavailable
Emergency / line-down freight
Same-day, counter-to-counter
Next-day at best
Terms
Net-30 for established accounts
1–3 Card up front, credit review
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Popular Searches & Part Categories
Browse by brand, rating, application, or guide.
BY BRAND
Square D circuit breaker
Eaton cutler-hammer breaker
GE Spectra & THQL breakers
Siemens motor starter
Burndy compression lugs
Bussmann fuses
BY AMP RATING
20A circuit breaker
100A circuit breaker
200A fusible disconnects
400A molded case breaker
800A I-Line breakers
1200A main Breakers
BY APPLICATION
Obsolete and discontinued parts
Panel builder suppliers
Plant maintenance and MRO
NEMA 4X outdoor enclosure
Motor control centers
Emergency line-down order
GUIDES
Reading a breaker catalog number
Fuse class cheat sheet
NEMA vs IEC starters
Sizing a discount
Breaker interchangeability
All Resources →
Where We Ship — Service
Areas
All 50 states from our Maryland warehouse, with next-day
ground across the Mid-Atlantic and same-day counter-to-
counter freight for outages
Baltimore, MD
Send us the part number
A specialist confirms the frame, trip unit, and availability, then
quotes price and lead time. No login and no minimum order
Industrial Electrical Supply,
JW Electrical Supply distributes circuit breakers, motor starters, fuses, safety switches, connectors, and transformers to electrical contractors, plant maintenance teams, panel builders, and OEMs. We stock new, factory-surplus, and reconditioned units from Square D, Eaton, GE, Siemens, and Burndy — including obsolete lines that have been out of
production for decades.
Every unit is inspected and warrantied for one year. Orders before 3PM ET ship the same business day, and net-30 terms are available for
established accounts.
Can't find a part? Send a nameplate photo and a specialist will cross-reference it — request a quote or call +1 410-817-2216, Mon–Fri 9AM–
5PM ET
In-stock orders placed before 3PM ET ship the
same business day. Overnight and counter-to-
counter freight are available for line-down
emergencies.
Yes. Every reconditioned unit is cleaned,
inspected, and electrically tested to its published
trip curve, then covered by the same one-year
warranty as new stock
Established contractors, facilities, and OEMs can
apply for net-30 terms with a short credit
reference check — usually approved within two
business days
Send a CSV, spreadsheet, or PDF part list and we
return a line-by-line quote with availability and
lead times, usually the same day.
Yes — obsolete and discontinued frames are a core
part of our inventory, including legacy Square D,
Westinghouse, and GE.
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