Eaton / Cutler-Hammer JDB3125CA06 Molded Case Circuit Breaker
- 125A
- 3 Pole
- Unit Mount
Eaton / Cutler-Hammer
JDB3125CA06
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
JDB3125CA06
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Eaton / Cutler-Hammer JDB3125CA06 - 125A 3 Pole Molded Case Circuit Breaker
New
Quantity
Similar Items
150A 3 Pole Molded Case Circuit Breaker
175A 3 Pole Molded Case Circuit Breaker
200A 3 Pole Molded Case Circuit Breaker
Description
The JDB3125CA06 is a 3-pole, 125A molded case circuit breaker from Eaton's Series C J-Frame lineup. Built for demanding commercial and industrial environments, it features a factory-installed 1A-1B auxiliary switch for remote signaling and status monitoring. This unit mount breaker installs into Eaton panelboards, switchboards, and motor control centers. It utilizes a fixed thermal-magnetic trip unit to deliver reliable long-time and instantaneous (LI) protection with a 35kAIC rating at 480VAC.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | JDB3125CA06 |
| Series | JDB |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers, Enclosures |
| Wire Gauge | 4 AWG - 350 kcmil (Al/Cu) |
| Max Wire | 350 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Undervoltage Release, Alarm Switch, Handle Mechanism |
|---|---|
| Accessories | Line and Load Lugs Included (TA250KB), Auxiliary Switch (Factory Installed) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
6 answersWhat does the A06 suffix indicate on the JDB3125CA06 circuit breaker?
The A06 suffix indicates that this breaker includes a factory-installed 1A-1B auxiliary switch. This provides one normally open and one normally closed contact mounted in the right pole, complete with rear-exiting pigtail leads for remote status indication.
Can the trip unit on the JDB3125CA06 be swapped for a different amperage?
No, this breaker features a non-interchangeable thermal-magnetic trip unit. The 125A rating is fixed and cannot be modified or swapped in the field.
Is the JDB3125CA06 suitable for reverse-feed applications?
Yes, this J-Frame breaker is rated for reverse-fed applications, allowing it to be back-fed in panelboards or switchboards where permitted by local codes.
Can I field-install additional internal accessories in the JDB3125CA06?
The right pole is already occupied by the factory-installed A06 auxiliary switch. Any additional internal accessories, such as a shunt trip or undervoltage release, must be installed in the left pole.
Can this breaker be used to replace a standard JDB3125?
Yes, it shares the same physical J-Frame dimensions and 125A thermal-magnetic trip characteristics. It includes an internal auxiliary switch that can simply be left unwired if remote status indication is not required by your control circuit.
What safety precautions are required when wiring the A06 auxiliary switch?
Ensure all power sources, including the primary circuit and the separate control circuit powering the auxiliary switch, are de-energized before installation or maintenance to prevent shock hazards.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.