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Siemens FJ63B110 Molded Case Circuit Breaker

  • 110A
  • 3 Pole
  • Bolt-On
Siemens FJ63B110
Molded Case Circuit Breaker
Brand Siemens
SKU FJ63B110
Select Item Condition
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  • 110A
  • 3 Pole
  • Bolt-On

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Siemens FJ63B110 - 110A 3 Pole Molded Case Circuit Breaker

Siemens FJ63B110 - 110A 3 Pole Molded Case Circuit Breaker

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$827.62 In Stock

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Description

Built for heavy-duty power distribution, the Siemens FJ63B110 is a 110A, 3-pole molded case circuit breaker. It provides essential LI trip functions for commercial facilities. Designed for bolt-on mounting, this unit fits perfectly into Siemens P1, P2, and P3 panelboards, along with SB switchboards and legacy I-T-E F-Frame enclosures. It can be replaced by the newer FXD63B110 model. The breaker features a 25kAIC rating at 240VAC and includes load side lugs.

Specifications

Key specifications
Brand Siemens
Part Number FJ63B110
Series FJ6
Amperage 110A
Poles 3
Mounting Style Bolt-On
Voltage 240VAC, 480VAC, 600VAC, 250VDC
Phase 3
AIC Rating 25kA @ 240VAC, 22kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC
Fit and installation
Frame Type FJ63
Terminal Type Lugs
For Use With Siemens P1, P2, P3 Panelboards, SB Switchboards, I-T-E F-Frame Panelboards
Wire Gauge 6 AWG - 350 kcmil (Cu/Al)
Max Wire 350 kcmil
Min Wire 6 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Adjustable Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch
Accessories Load Side Lugs Included
Standards CSA C22.2 No. 5, NEMA AB-1, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features Non-Interchangeable Trip

Product FAQs

4 answers
Which panelboards and switchboards are compatible with the FJ63B110?

This breaker is designed for use in Siemens P1, P2, and P3 panelboards, as well as SB switchboards. It is also backward compatible with legacy I-T-E F-Frame panelboards.

What wire sizes are accepted by the lugs on the FJ63B110?

The factory-installed lugs accept wire gauges from 6 AWG up to 350 kcmil. They are rated for both copper (Cu) and aluminum (Al) conductors.

Does the FJ63B110 feature an adjustable trip unit?

Yes, it utilizes a thermal magnetic trip unit with a fixed thermal element for long-time overload protection and an adjustable magnetic element for instantaneous short-circuit protection.

Can I use the FJ63B110 to replace an older I-T-E 110A F-Frame breaker?

Yes. Siemens acquired I-T-E and continued the F-Frame product line. The FJ63B110 serves as a direct bolt-on replacement for legacy I-T-E breakers with the same frame size and specifications.

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