Typical Applications |
| Select a typical application to view the associated one line diagram, functions, and product order codes. |
Single Bus Bar, 8 Feeders or less, 1 Zone
| Typical Functions | ||||
| 87B 86 50/51 | Bus Differential Lockout auxiliary TOC and IOC (Phase, ground, neutral) |  | ||
| Functions | Typical Product Order Code | |
| Typical Functions (Phase segregated bus differential) + check zone |
| |
| Alternative + check zone | ||
| Alternative (high Impedance bus differential) | ||
| Alternative | ||
| Auxiliary lockout relay |
Double Busbar, 24, Feeders or less, Multiple Zones
| Typical Functions | ||||
| 87B 87B 86 50/51 50BF | Bus Differential Check Zone Lockout auxiliary TOC and IOC (Phase, ground, neutral) Breaker Failure End Zone Fault |  | ||
| Functions | Typical Product Order Code | |
| Typical Functions (Phase segregated bus differential) |
| |
| Alternative (high Impedance bus differential) | ||
| Harsh Environment Conformal Coating |
| |
| Auxiliary lockout relay |
Breaker-and-Half Busbar, 24 Feeders or less, Multiple Zones
| Typical Functions | ||||
| 87B 87B 86 50/51 | Bus Differential Check Zone Lockout auxiliary TOC and IOC (Phase, ground, neutral) |  | ||
| Functions | Typical Product Order Code | |
| Typical Functions (Phase segregated bus differential) |
| |
| Alternative (high Impedance bus differential) | ||
| + Harsh Environment Conformal Coating |
| |
| Auxiliary lockout relay |
Two Section Busbar with a Bus Tie, 24 Feeders, Multiple Zones
| Typical Functions | ||||
| 87B 87B 86 50/51 | Bus Differential Check Zone Lockout auxiliary TOC and IOC (Phase, ground, neutral) |  | ||
| Functions | Typical Product Order Code | |
| Typical Functions (Phase segregated bus differential) |
| |
| Alternative (high Impedance bus differential) | ||
| + Harsh Environment Conformal Coating |
| |
| Auxiliary lockout relay |
Double Busbar with Transfer Bus and Tie-Breaker
| Typical Functions | ||||
| 87B 87B 86 50/51 | Bus Differential Check Zone Lockout auxiliary TOC and IOC (Phase, ground, neutral) |  | ||
| Functions | Typical Product Order Code | |
| Typical Functions (Phase segregated bus differential) |
| |
| Alternative (high Impedance bus differential) | ||
| + Harsh Environment Conformal Coating |
| |
| Auxiliary lockout relay |
Triple Busbar
| Typical Functions | ||||
| 87B 87B 86 50/51 | Bus Differential Check Zone Lockout auxiliary TOC and IOC (Phase, ground, neutral) |  | ||
| Functions | Typical Product Order Code | |
| Typical Functions (Phase segregated bus differential) |
| |
| Alternative (high Impedance bus differential) | ||
| + Harsh Environment Conformal Coating |
|
Typical applications
Typical Applications |
| Select a typical application to view the associated one line diagram, functions, and product order codes. |
Single Bus Bar, 8 Feeders or less, 1 Zone
| Typical Functions | ||||
| 87B 86 50/51 | Bus Differential Lockout auxiliary TOC and IOC (Phase, ground, neutral) | | ||
| Functions | Typical Product Order Code | |
| Typical Functions (Phase segregated bus differential) + check zone |
| |
| Alternative + check zone | ||
| Alternative (high Impedance bus differential) | ||
| Alternative | ||
| Auxiliary lockout relay |
Double Busbar, 24, Feeders or less, Multiple Zones
| Typical Functions | ||||
| 87B 87B 86 50/51 50BF | Bus Differential Check Zone Lockout auxiliary TOC and IOC (Phase, ground, neutral) Breaker Failure End Zone Fault | | ||
| Functions | Typical Product Order Code | |
| Typical Functions (Phase segregated bus differential) |
| |
| Alternative (high Impedance bus differential) | ||
| Harsh Environment Conformal Coating |
| |
| Auxiliary lockout relay |
Breaker-and-Half Busbar, 24 Feeders or less, Multiple Zones
| Typical Functions | ||||
| 87B 87B 86 50/51 | Bus Differential Check Zone Lockout auxiliary TOC and IOC (Phase, ground, neutral) | | ||
| Functions | Typical Product Order Code | |
| Typical Functions (Phase segregated bus differential) |
| |
| Alternative (high Impedance bus differential) | ||
| + Harsh Environment Conformal Coating |
| |
| Auxiliary lockout relay |
Two Section Busbar with a Bus Tie, 24 Feeders, Multiple Zones
| Typical Functions | ||||
| 87B 87B 86 50/51 | Bus Differential Check Zone Lockout auxiliary TOC and IOC (Phase, ground, neutral) | | ||
| Functions | Typical Product Order Code | |
| Typical Functions (Phase segregated bus differential) |
| |
| Alternative (high Impedance bus differential) | ||
| + Harsh Environment Conformal Coating |
| |
| Auxiliary lockout relay |
Double Busbar with Transfer Bus and Tie-Breaker
| Typical Functions | ||||
| 87B 87B 86 50/51 | Bus Differential Check Zone Lockout auxiliary TOC and IOC (Phase, ground, neutral) | | ||
| Functions | Typical Product Order Code | |
| Typical Functions (Phase segregated bus differential) |
| |
| Alternative (high Impedance bus differential) | ||
| + Harsh Environment Conformal Coating |
| |
| Auxiliary lockout relay |
Triple Busbar
| Typical Functions | ||||
| 87B 87B 86 50/51 | Bus Differential Check Zone Lockout auxiliary TOC and IOC (Phase, ground, neutral) | | ||
| Functions | Typical Product Order Code | |
| Typical Functions (Phase segregated bus differential) |
| |
| Alternative (high Impedance bus differential) | ||
| + Harsh Environment Conformal Coating |
|
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