Siemens HRD R-Frame Hi-Break Circuit Breakers
The Siemens HRD series is an R-Frame 2000A Hi-Break molded case circuit breaker rated for 600V and 100kA interrupting capacity at 480V. Available in 3-pole configuration from 800A to 2000A for main service entrance and large industrial switchboard applications.
Series Specifications
| Frame | R-Frame 2000A Hi-Break — 2000A Frame |
|---|---|
| Amperage Range | 800A – 2000A |
| Voltage | 600VAC |
| Poles | 3-Pole |
| Interrupting Rating | 100kA @ 480V |
| Mounting | Bolt-On |
| Trip Type | Electronic Trip |
History and Replacement Context
The Siemens HRD Hi-Break series represents the largest Hi-Break frame in the Siemens Sentron lineup, designed for main service entrance protection in major industrial facilities and utility substations.
Typical Applications
- Main service entrance (large)
- Industrial switchboard mains
- Utility substation feeders
- Large transformer protection