Description
The WESTINGHOUSE LB3400 is a molded case circuit breaker designed to provide high-capacity overcurrent protection in industrial electrical systems. It supports three-phase circuits with a 400 amp rating and operates at up to 600 VAC. This breaker is built for reliable interruption of fault currents in demanding power distribution applications.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
WESTINGHOUSE |
| Category |
Circuit Breaker |
| Part Number |
LB3400 |
| Subcategory |
Molded Case Circuit Breaker |
| Current Rating |
400 Amp |
| Number of Poles |
3 Pole |
| Voltage Rating |
600 VAC |
| Frequency |
50/60 Hz |
| Trip Type |
Thermal-Magnetic |
| Mounting Type |
Panel / Switchboard Mount |
| Application |
Industrial Power Distribution |
| Manufacturer Status |
Discontinued |
| Weight |
10.65 lbs |
Information About LB3400
The LB3400 is part of Westinghouse’s legacy molded case circuit breaker lineup, developed for heavy-duty electrical protection. It features a 3-pole configuration suitable for three-phase systems in industrial and commercial installations. The breaker incorporates thermal-magnetic trip technology to respond to both overload and short-circuit conditions. Designed for integration into switchboards and panelboards, it ensures stable and safe operation in high-power environments.
Key Features:
- 3-Pole Configuration: Provides protection for three-phase electrical circuits.
- 400 Amp Rating: Supports high-current loads in industrial power systems.
- 600 VAC Operation: Suitable for high-voltage AC distribution applications.
- Thermal-Magnetic Trip: Combines overload protection with fast short-circuit response.
- Molded Case Design: Offers durable insulation and mechanical protection for internal components.
- Panel and Switchboard Integration: Compatible with industrial distribution equipment.
- High Fault Interruption Capability: Ensures safe disconnection during abnormal conditions.
- Robust Construction: Designed for long-term operation in demanding environments.
The LB3400 delivers the reliability and precision required for circuit protection and power distribution safety in industrial electrical systems.
