Westinghouse JB3250NW 250A 3P 600V JB J-Frame Non-Automatic Molded Case Switch

Price: $425.00
  • SKUCM921C
In stock - 3 units available.
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Stock photo shown for reference only. You will receive a unit of the listed catalog number in the condition stated above, inspected and tested to ESP Product Standards. Cosmetic appearance may vary.

1-Year Operational Guarantee Every breaker we sell — new, surplus, reconditioned, or used — is guaranteed to operate normally for one year from date of sale. Product Standards
Same-Day Shipping In-stock orders placed before 12pm PST typically ship the same business day, with UPS tracking provided. Shipping details
30-Day Returns Return authorization available within 30 days of receipt. Return policy
Talk to a Real Person Questions about fit, condition, or availability? Call 800-664-4377. Credit terms available for approved accounts.
Found this part for less somewhere else? Surplus and reconditioned prices vary widely with scarcity and condition — tell us what you found and make us an offer. Include the catalog number and we’ll respond same business day: call 800-664-4377 or email us. Every ESP unit is tested and backed by our 1-year operational guarantee — make sure you’re comparing like for like.

Description

Westinghouse JB3250NW Specifications

ManufacturerWestinghouse / Eaton / Cutler-Hammer
Catalog NumberJB3250NW
Device typeNon-automatic molded case switch — not a circuit breaker
TypeJB · N = non-automatic · W = with lugs
FrameJ Frame
Amperage250 A
Voltage600V AC
Poles3-Pole
Phase3-Phase
MountingBolt-On / Fixed
ProtectionNone. No overcurrent protection — no thermal element, no magnetic trip
TerminalsLoad side lugs
StandardsUL 489 (switch)
ConditionReconditioned — 1-year operational guarantee

This unit is sold reconditioned, inspected and tested to ESP Product Standards, and guaranteed to operate normally for one year from the date of sale.

This device provides no overcurrent protection. The N in the catalog number is Westinghouse's non-automatic designator: the switch opens and closes a 250-ampere circuit under load and gives a positive disconnect point, but it has no trip and will not open on an overload or a fault. Protection must come from another device in the circuit. The breaker on the same frame at this rating is JB3250W, without the N.

The Westinghouse AB De-ion frames are obsolete with no modern drop-in equivalent. ESP stocks tested reconditioned units for legacy Westinghouse and Cutler-Hammer panelboards, switchboards and motor control centers still in service.

More Details

A single letter separates this from a breaker. JB3250W trips; JB3250NW does not. Both sit in the same J-frame case, both take the same mounting, and only one of them protects anything. Non-automatic switches earn their place in switchboards that need isolation at a position where protection is already handled upstream, and in interlocked source-changeover schemes where only one supply may feed a load. Load side lugs are fitted. If overcurrent protection is what the position needs, JB3250W is the part. Reconditioned, tested, one-year operational guarantee.

What is "surplus new"?

Surplus new means the item has never been installed or put into service. It may not arrive in its original packaging, but it has never been used.

What does "reconditioned" mean?

Reconditioned items have been inspected, cleaned, and tested to confirm they operate to the manufacturer's original specifications. Every reconditioned item we sell carries a one-year operational guarantee.

How fast will my order ship?

In-stock orders placed before 12pm PST usually ship the same business day via UPS, with tracking provided.

What if I can't find the item I need?

Call 800-664-4377 — we stock thousands of obsolete and hard-to-find electrical parts that may not yet be listed online.

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