1. Product Overview
The Schneider Electric LV429010 Compact NSX is a robust 4-pole circuit breaker designed for electrical distribution systems. This model, the NSX 100L, operates at 50/60 Hz and is rated for 800V without a trip unit. It is engineered to provide reliable protection and control in various industrial and commercial applications.
Figure 1: Schneider Electric Compact NSX Circuit Breaker (LV429010)
This image displays the overall view of the Schneider Electric Compact NSX circuit breaker. It shows the four poles, the main ON/OFF switch, and the product labeling indicating its model and voltage ratings. The robust construction and terminal connections are clearly visible.
2. Safety Information
Always adhere to local and national electrical codes and regulations when installing, operating, or maintaining this device. Failure to do so may result in serious injury, death, or equipment damage.
- Installation and maintenance should only be performed by qualified and authorized personnel.
- Ensure all power is disconnected and locked out before beginning any work on the circuit breaker or associated electrical system.
- Use appropriate personal protective equipment (PPE), including insulated gloves, safety glasses, and arc-flash protective clothing.
- Verify voltage and current ratings of the circuit breaker match the application requirements.
- Do not operate the circuit breaker if it appears damaged or has been subjected to abnormal conditions.
3. Setup and Installation
The Schneider Electric Compact NSX circuit breaker is designed for panel mounting. Follow these general steps for installation:
- Preparation: Ensure the mounting surface is clean, dry, and free from obstructions. Verify adequate space for ventilation and access.
- Mounting: Securely mount the circuit breaker to the designated panel or enclosure using appropriate fasteners. Ensure it is firmly seated to prevent vibration or movement.
- Wiring: Connect the incoming and outgoing power cables to the designated terminals. The connector type is Screw. Ensure all connections are tight and secure to prevent loose contacts and overheating. Refer to the product label for correct terminal identification (e.g., 1, 3, 5 for incoming; 2, 4, 6 for outgoing).
- Grounding: Connect the circuit breaker to a proper earth ground as per electrical codes.
- Verification: After installation, visually inspect all connections and ensure no tools or debris are left inside the enclosure.
Figure 2: Terminal Connections of the Compact NSX
This image provides a closer view of the terminal connections at the top and bottom of the circuit breaker, highlighting the screw-type connectors. It also shows the numerical markings (1, 3, 5) for the poles, indicating where electrical connections are made.
4. Operation
The Compact NSX circuit breaker features a simple ON/OFF toggle mechanism.
- Turning ON: To close the circuit and allow current flow, push the toggle handle firmly to the "ON" position.
- Turning OFF: To open the circuit and stop current flow, push the toggle handle firmly to the "OFF" position.
- Trip Indication: In the event of an overload or short circuit, the circuit breaker will automatically trip. The handle will move to an intermediate position, typically between "ON" and "OFF", or to a specific "TRIP" indicator. To reset a tripped breaker, first move the handle fully to the "OFF" position, then push it to the "ON" position. Investigate the cause of the trip before re-energizing the circuit.
Figure 3: ON/OFF Toggle and Trip Indicator
This image focuses on the main toggle switch of the circuit breaker, clearly showing the "OFF" indicator. The red button, which typically indicates a tripped state or a test function, is also visible near the switch mechanism.
5. Maintenance
Regular maintenance ensures the longevity and reliable operation of your Compact NSX circuit breaker. Always disconnect power before performing any maintenance.
- Visual Inspection: Periodically inspect the circuit breaker for any signs of physical damage, discoloration, loose connections, or excessive dust accumulation.
- Cleaning: Use a dry, lint-free cloth to gently clean the exterior of the circuit breaker. Do not use solvents or abrasive cleaners.
- Connection Check: Annually, or as required by local codes, verify the tightness of all electrical connections. Loose connections can lead to overheating and potential failure.
- Functional Test: If equipped with a test button, periodically test the trip mechanism according to manufacturer guidelines.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Circuit breaker trips frequently. | Overload, short circuit, or ground fault in the circuit. | Identify and correct the cause of the overload or fault. Reduce load, inspect wiring for shorts, or check for ground faults. Do not repeatedly reset a tripping breaker without investigation. |
| Circuit breaker does not reset. | Persistent fault in the circuit; internal damage to the breaker. | Ensure the fault is cleared. If it still does not reset, the breaker may be damaged and require replacement by a qualified electrician. |
| Breaker feels hot to the touch. | Overload, loose connections, or internal damage. | Immediately disconnect power. Check for overloads and tighten all connections. If the issue persists, replace the breaker. |
7. Specifications
- Model Number: pbt - pac 05 06
- Product Dimensions: 7.48 x 5.71 x 5.31 inches
- Weight: 4.17 Pounds
- Voltage Rating: 800 Volts
- Frequency: 50/60 Hz
- Poles: 4P
- Connector Type: Screw
- Manufacturer: Schneider Electric
- ASIN: B00B7ZNVIK
- Global Trade Identification Number: 03606480006579
8. Warranty and Support
For specific warranty information and technical support, please refer to the official Schneider Electric website or contact their customer service directly. Keep your purchase receipt for warranty claims.
Schneider Electric Official Website: www.se.com