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Siemens FXD63B070L Molded Case Circuit Breaker
- 70A
- 3 Pole
- Unit Mount
Siemens
FXD63B070L
Molded Case Circuit Breaker
Brand
Siemens
SKU
FXD63B070L
Quantity
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Siemens FXD63B070L - 70A 3 Pole Molded Case Circuit Breaker
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Description
Built for heavy-duty power distribution, the Siemens FXD63B070L is a 3-pole, 70A molded case circuit breaker from the Sentron FD frame lineup. It mounts into Siemens P1 through P5 panelboards, SB switchboards, and motor control centers. Unlike standard models, this version comes factory-equipped with line and load lugs (TA1FD350A) to accelerate installation. Rated for 65 kAIC at 240V and 35 kAIC at 480V, it utilizes a reliable thermal-magnetic trip unit with adjustable magnetic settings.Specifications
| Brand | Siemens |
|---|---|
| Part Number | FXD63B070L |
| Series | FXD6 |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 22kA @ 600VAC, 30kA @ 250VDC, 18kA @ 500VDC |
| Frame Type | FD Frame |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 Panelboards, SB Switchboards, Motor Control Centers |
| Wire Gauge | 6 AWG - 350 kcmil |
| Max Wire | 350 kcmil |
| Min Wire | 6 AWG |
| 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, Lug Kits |
|---|---|
| Accessories | Line & Load Lugs (TA1FD350A) |
| Standards | CSA C22.2 No. 5, HACR Rated, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
7 answersWhich panelboards and switchboards are compatible with the FXD63B070L?
This FD-frame breaker is designed for use in Siemens P1, P2, P3, P4, and P5 panelboards, as well as SB switchboards and motor control centers.
What is the difference between the Siemens FXD63B070 and the FXD63B070L?
The L suffix in the FXD63B070L catalog number indicates that the breaker comes factory-equipped with line and load side lug terminals. The standard FXD63B070 is supplied without lugs.
What is the difference between the FXD63B070L and the HFXD63B070L?
The FXD63B070L has a standard interrupting rating of 35kA at 480VAC. The HFXD63B070L is the high-interrupting version of the same frame, rated for 65kA at 480VAC.
What is the adjustable magnetic trip range for this 70A breaker?
The thermal-magnetic trip unit features a fixed thermal setting of 70 amps and an adjustable instantaneous magnetic trip range of 600A to 900A.
What wire sizes are accepted by the lugs on the FXD63B070L?
The factory-installed line and load lugs accept wire gauges ranging from 6 AWG to 350 kcmil.
Can the trip unit on the FXD63B070L be swapped or upgraded?
No, this breaker is manufactured with a non-interchangeable thermal-magnetic trip unit.
How does the FXD63B070L mount into an enclosure?
It is a unit-mount, feed-thru circuit breaker designed to be bolted directly to the mounting pan or structure of compatible enclosures, rather than plugging onto a busbar.
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