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Siemens JKL3B125 125A 3-Pole 600 V Circuit Breaker
Regular price
$510.00
Sale price
$510.00
Regular price
Unit price
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Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
Siemens JKL3B125 125A 3-Pole 600 V Circuit Breaker
Regular price
$510.00
Sale price
$510.00
Regular price
Unit price
Product description
Shipping
Introducing the Siemens JKL3B125 125A 3-Pole 600V Circuit Breaker—trusted protection for three-phase electrical systems where reliability matters.
With a nominal current rating of 125 A, a 3-pole configuration, and a 600 V maximum voltage rating, this breaker is designed to interrupt fault currents in multi-phase distributions and safeguard conductors, motors, and downstream devices from damage.
Specifications
- Part Number: JKL3B125
- Current rating: 125 A
- Poles: 3
- Voltage rating: 600 V
Why choose the JKL3B125 for your three-phase system
The JKL3B125 is purpose-built for three-phase distribution. Rather than a generic breaker, this model aligns with Siemens' design approach, delivering predictable trip characteristics and compatibility with standard Siemens panel and distribution configurations. The 3-pole arrangement provides simultaneous protection across all three phases, reducing the risk of phase-to-phase faults and uneven loading that can stress motors and equipment.
Ideal use cases
- Three-phase feeders for industrial motors (pumps, conveyors, presses, CNC machines)
- Commercial and light industrial panelboards requiring reliable three-phase protection
- Main service disconnects and branch-circuit protection in multi-phase electrical systems up to 600 V
What problems it solves
By interrupting fault currents and opening the circuit promptly, the JKL3B125 helps prevent insulation damage, reduces the chance of overheated conductors, and minimizes downtime caused by electrical faults on three-phase lines.
Practical tips for installation and optimal use
- Always verify the system voltage and load current match: this device is rated for up to 600 V and 125 A.
- Ensure proper mounting in a compatible Siemens panel or enclosure designed for 3-pole breakers.
- Follow local electrical codes and manufacturer installation instructions for safe operation and wiring torque guidelines.
- Label circuits clearly to simplify fault tracing and preventive maintenance.
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