Siemens HHLXD63B500 Molded Case Circuit Breaker
- 500A
- 3 Pole
- Bolt-On
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Siemens HHLXD63B500 - 500A 3 Pole Molded Case Circuit Breaker
New
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Description
Engineered for demanding industrial applications, the Siemens HHLXD63B500 is a 3-pole, 500A MCCB from the Sentron LD-Frame family. It provides reliable overcurrent protection for heavy-duty distribution systems. This bolt-on breaker installs into Siemens P4 and P5 panelboards, Sentron switchboards, and motor control centers. The catalog prefix indicates a non-interchangeable trip unit. Lugs are not included.Specifications
| Brand | Siemens |
|---|---|
| Series | HHLXD |
| Amperage | 500A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 100kA @ 480VAC, 50kA @ 600VAC |
| Frame Type | LD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P4 Panelboards, P5 Panelboards, Sentron Switchboards, Motor Control Centers |
| 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, Motor Operator, Rotary Handle, Lug Kits |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Extra High Interrupting Capacity, Non-Interchangeable Trip, Reverse Feed, Trip-Free Mechanism |
Product FAQs
5 answersWhat is the difference between the Siemens HHLXD63B500 and the HLXD63B500?
The difference is the interrupting rating. The HHLXD63B500 has a higher interrupting capacity of 100kA at 480VAC, while the standard HLXD63B500 is rated for 65kA at 480VAC. Both share the same 500A LD frame and physical dimensions.
What does the HH prefix indicate in the HHLXD63B500 catalog number?
The HH designates a very high interrupting capacity rating. For this LD frame breaker, it signifies a 100kA rating at 480VAC and 200kA at 240VAC, which is significantly higher than the standard LXD and HLXD versions.
Which panelboards and switchboards accept the HHLXD63B500?
This LD frame breaker is designed for direct integration into Siemens P4 and P5 panelboards, Sentron switchboards, and Siemens Motor Control Centers.
How are the trip settings adjusted on the HHLXD63B500?
The thermal protection for long-time overload is fixed at 500A. However, the magnetic instantaneous trip function is adjustable, allowing you to tune the short-circuit response to coordinate with downstream loads and prevent nuisance tripping.
Can the trip unit in the HHLXD63B500 be swapped out for a different rating?
No, this breaker features a non-interchangeable trip unit. The entire breaker must be replaced if a different amperage or trip curve is required for your application.
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