Siemens LD63B500 Molded Case Circuit Breaker
- 500A
- 3 Pole
- Unit Mount
Siemens
LD63B500
Molded Case Circuit Breaker
Brand
Siemens
SKU
LD63B500
Quantity
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Siemens LD63B500 - 500A 3 Pole Molded Case Circuit Breaker
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Description
Part of the robust Sentron family, this 500-amp molded case circuit breaker provides reliable long-time and instantaneous protection for industrial environments. The unit-mount design integrates into Siemens Type S1, S2, and SE panelboards. It also serves as a drop-in replacement for legacy ITE LD3500 units. Featuring an interchangeable trip unit and a 35kAIC rating at 480VAC, it delivers versatile performance while maintaining strict UL 489 standards.Specifications
| Brand | Siemens |
|---|---|
| Series | LD6 |
| Amperage | 500A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 25kA @ 500VDC |
| Frame Type | LD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards (Type S1, S2, SE), Switchboards, Enclosures |
| Wire Gauge | (2) 3/0 AWG-500 kcmil (Cu/Al) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 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 |
|---|---|
| Accessories | Line and Load Lugs (TA2J6500) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | Interchangeable Trip Unit, HACR Rated, Reverse Feed |
Product FAQs
6 answersWhat panelboards are compatible with the LD63B500?
This LD frame breaker is designed for installation in Siemens Sentron panelboards, specifically Type S1, S2, and SE, as well as compatible Siemens switchboards and enclosures.
What wire sizes do the standard lugs accept?
The included TA2J6500 line and load lugs accept two 3/0 AWG to 500 kcmil copper or aluminum conductors per phase.
Can the LD63B500 be used in direct current systems?
Yes, this breaker is rated for DC applications with an interrupting capacity of 25kA at 500VDC.
What is the difference between the LD63B500 and the HLD63B500?
The HLD63B500 is the high interrupting capacity version. It provides 65kAIC at 480VAC, while the standard LD63B500 provides 35kAIC at 480VAC.
Is the LD63B500 suitable for reverse feed applications?
Yes, standard Siemens LD frame thermal magnetic breakers without dedicated line and load markings are suitable for reverse feed applications.
How do you adjust the trip settings on this breaker?
The LD63B500 features a thermal magnetic trip unit with a fixed thermal element for long-time protection and an adjustable magnetic dial to set the instantaneous trip threshold.
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