Federal Pacific XKL3400 Molded Case Circuit Breaker
- 400A
- 3 Pole
- Bolt-On
Quantity
Federal Pacific XKL3400 - 400A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Operating as a critical safeguard for industrial facilities, this 400A, three-pole breaker handles up to 600VAC. The XKL3400 utilizes a thermal-magnetic trip unit for consistent performance. Maintenance teams can install this unit into existing Federal Pacific panelboards and switchboards. The bolt-on configuration guarantees a stable connection, restoring power distribution quickly. With a 100kAIC interrupt capacity, it isolates severe electrical faults rapidly.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | XKL3400 |
| Series | XKL |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 100kA @ 480VAC, 100kA @ 600VAC |
| Frame Type | XKL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific Panelboards, Switchboards |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | UL 489 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, Non-Interchangeable Trip |
Product FAQs
6 answersWhat equipment is the Federal Pacific XKL3400 designed to fit?
The XKL3400 is a legacy X-Frame molded case circuit breaker engineered specifically for Federal Pacific panelboards and switchboards. It requires a direct bolt-on connection to the panel busbar.
What does the LI trip function code mean on the XKL3400?
The LI designation indicates that the breaker provides Long-Time (L) and Instantaneous (I) protection. The Long-Time function protects against sustained overloads, while the Instantaneous function clears high-level short circuits immediately.
Are the trip settings on the XKL3400 adjustable?
The thermal-magnetic trip unit features a fixed thermal element for Long-Time overload protection and an adjustable magnetic element for Instantaneous short-circuit protection. The magnetic dials must be configured by a qualified professional to match your system coordination study.
Does the XKL3400 require special mounting hardware?
As a bolt-on breaker, it secures directly to the busbar of compatible Federal Pacific switchboards using bolted connections. Ensure you use the correct torque specifications for both the busbar bolts and the terminal lugs to prevent high-resistance connections.
Is the Federal Pacific XKL3400 still in active production?
Federal Pacific Electric is a defunct manufacturer, making the XKL3400 a legacy component. It is sourced primarily to maintain and service existing FPE infrastructure rather than for new electrical builds.
What safety procedures apply when installing this legacy breaker?
Installation must be performed by a licensed electrician. Because this is a bolt-on breaker for older switchboards, ensure the panel bus is completely de-energized, verified with a multimeter, and properly locked out before mounting the breaker or terminating the phase conductors at the lugs.
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