Description
The Siemens JXD63B350 is a Sentron Series molded case circuit breaker rated at 350A and 600V. Built on the JD frame, it provides three-pole thermal-magnetic protection with long-time and instantaneous trip functions for secure power distribution.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Siemens |
| Category |
Circuit Breakers |
| Part Number |
JXD63B350 |
| Subcategory |
Molded Case |
| Series |
Sentron |
| Frame Type |
JD Frame |
| Type |
JXD Series |
| Voltage Rating |
600 VAC |
| Amperage Rating |
350 A |
| Poles |
3 |
| Phase |
3 |
| Protection |
Thermal Magnetic |
| Functions |
LI – Long-Time and Instantaneous |
| Connection Type |
Bolt-On |
| Interrupting Rating |
25 kAIC @ 600V, 35 kAIC @ 480V |
| Temperature Rating |
40 °C |
| Approval |
UL, IEC |
| Standards |
RoHS compliant |
| Dimensions (L x W x H) |
4" x 7.5" x 11" |
| Application |
Industrial and commercial power systems |
| Weight |
22 lbs |
Information About JXD63B350
The JXD63B350 is a Siemens Sentron Series molded case circuit breaker designed to deliver dependable protection for medium-voltage three-phase electrical systems. With a 350A current rating and 600V operating capacity, it supports demanding loads while maintaining safe performance. The JD frame breaker features thermal-magnetic protection, offering both overload and short-circuit defense with long-time and instantaneous trip functionality. Its bolt-on design ensures secure installation in distribution panels, making it a reliable choice for industrial and commercial power networks.
Key Features:
- High Current Rating: Provides 350A continuous duty capacity, supporting medium to large electrical loads.
- Voltage Capacity: Operates at up to 600 VAC, making it suitable for a wide range of power distribution applications.
- Three-Pole Protection: Delivers balanced safety coverage across three-phase systems, ensuring full system protection.
- Thermal-Magnetic Trip: Combines long-time overload protection with instantaneous short-circuit response for reliable safety.
- Interrupting Rating: Rated at 25kA at 600V and 35kA at 480V, enabling effective fault current clearing.
- JD Frame Construction: Built on the Siemens JD frame, ensuring proven reliability and compatibility with Sentron systems.
- Bolt-On Connection: Provides a secure mounting method for stability in panelboards and switchgear.
- Compliance: UL listed, IEC approved, and RoHS compliant, meeting global safety and environmental standards.
- Rugged Design: Engineered to withstand demanding operating environments with a 40 °C temperature rating.
- Dimensions & Weight: Sized at 4" x 7.5" x 11" and weighing 22 lbs, designed for durability and manageable installation.
The JXD63B350 delivers the reliability and precision required for safe, efficient, and long-term power distribution in industrial and commercial installations.
