Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Siemens JXD63B350H Molded Case Circuit Breaker
- 350A
- 3 Pole
- Unit Mount
Siemens
JXD63B350H
Molded Case Circuit Breaker
Brand
Siemens
SKU
JXD63B350H
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Siemens JXD63B350H - 350A 3 Pole Molded Case Circuit Breaker
New
Quantity
Similar Items
400A 3 Pole Molded Case Circuit Breaker
400A 3 Pole Molded Case Circuit Breaker
400A 3 Pole Molded Case Circuit Breaker
Description
Designed with a 100% continuous current rating, the Siemens JXD63B350H maximizes power utilization in commercial and industrial facilities. This 3-pole, 350-amp molded case circuit breaker utilizes thermal-magnetic trip technology with adjustable magnetic settings. It is engineered for unit-mount installation within Siemens P4, P5, S4, and S5 panelboards, as well as motor control centers. The JD frame breaker offers 35kAIC at 480VAC and includes a non-interchangeable trip unit.Specifications
| Brand | Siemens |
|---|---|
| Series | JXD6 |
| Amperage | 350A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 25kA @ 500VDC |
| Frame Type | JXD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards (Type P4, P5, S4, S5), Switchboards, Motor Control Centers |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Lug Kits |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, 100% Rated |
Product FAQs
7 answersIs the JXD63B350H rated for 100% continuous current?
Yes, the JXD63B350H is a 100% rated circuit breaker. This allows it to carry its full 350A continuous current rating without the standard 80% derating, provided it is installed in an enclosure approved for 100% rated applications.
Does the JXD63B350H come with lugs installed?
The "H" suffix in the JXD63B350H catalog number indicates that this breaker is supplied without lugs. Lug kits must be purchased separately based on your specific wire size and conductor material requirements.
How do I adjust the trip settings on this breaker?
The JXD63B350H features a thermal-magnetic trip unit with a fixed thermal setting for overload protection and an adjustable magnetic setting for short-circuit protection. The magnetic trip threshold can be adjusted using the dial located on the front face of the breaker.
Which Siemens enclosures and panels are compatible with the JXD63B350H?
This JD frame breaker is designed for unit-mount installation in Siemens Sentron Type P4, P5, S4, and S5 panelboards, as well as compatible switchboards and motor control centers.
Can I swap the trip unit on the JXD63B350H for a different amperage?
No, this breaker features a non-interchangeable trip unit. The 350A thermal-magnetic trip unit is factory-installed and cannot be removed or swapped in the field.
Is the JXD63B350H suitable for reverse-feed applications?
Yes, this breaker is suitable for reverse-feed applications. It can be wired with the line connections on either the top or bottom terminals without affecting its protective functions.
Can this breaker be used for heating, air conditioning, and refrigeration equipment?
Yes, the JXD63B350H is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration motor loads.
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.