Description
The Siemens JXD62B300 is a 2-pole molded case circuit breaker designed for heavy-duty industrial and commercial electrical systems. With a 300A current rating and 600VAC voltage capacity, it provides dependable circuit protection against overloads and short circuits. This thermal-magnetic breaker offers a 35kA interrupting rating at 480V and uses a bolt-on connection for secure, efficient installation.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Siemens |
| Category |
Circuit Breakers |
| Part Number |
JXD62B300 |
| Subcategory |
Molded Case Circuit Breakers |
| Series |
Sentron Series |
| Frame Type |
JD Frame |
| Poles |
2 |
| Rated Current |
300A |
| Voltage Rating |
600VAC |
| Interrupting Rating |
35kA @ 480V |
| Trip Unit Type |
Thermal-Magnetic |
| Trip Functions |
Long-Time and Instantaneous |
| Connection Type |
Bolt-On |
| Terminal Type |
Load Side Lug (No Lugs Installed by Default) |
| Mounting Type |
Panelboard or Switchboard Mount |
| Temperature Rating |
-25°C to 70°C |
| Standards Compliance |
UL 489 / IEC 60947-2 |
| Country of Origin |
Mexico |
| Frequency |
50/60 Hz |
| Weight |
18 lbs |
Information About JXD62B300
The JXD62B300 is part of Siemens’ Sentron Series, featuring the durable JD frame designed for superior electrical performance in panelboard and switchboard applications. It utilizes a fixed thermal-magnetic trip unit that provides both long-time and instantaneous protection. The breaker’s bolt-on configuration ensures a solid, vibration-resistant connection suitable for industrial environments. Complying with UL 489 and IEC 60947-2 standards, the JXD62B300 is a reliable choice for systems requiring precise protection and easy integration into existing Siemens infrastructures.
Key Features:
- High Current Rating: Supports up to 300A continuous current for high-demand circuits.
- Voltage Capacity: Rated for 600VAC operation in industrial and commercial environments.
- Interrupting Rating: 35kA at 480V for strong short-circuit protection.
- Trip Unit Type: Thermal-magnetic unit with long-time and instantaneous trip functions.
- Frame Type: JD frame construction ensures strength and consistent performance.
- Mounting Configuration: Bolt-on style for secure and straightforward installation.
- Certifications: Meets UL 489 and IEC 60947-2 standards for safety and compliance.
- Temperature Tolerance: Operates effectively from -25°C to 70°C for demanding conditions.
The JXD62B300 delivers the reliability and precision required for high-capacity electrical protection and industrial power distribution systems.
