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Sincro JB4
JB4 - Sincro Alternator
Synchronous Single & Three-phase brushless 4 poles alternators with AVR from Sincro.

Electrical Data

Insulation class: H

Short circuit current: >300% In

Leads: 12

Total Harmonic content** : <3%

Excitation system: Brushless

Telephone Harmonic Factor** : <2.5%

Voltage regulator type: BL4-B

Underspeed protection: standard version

Voltage regulation accuracy*: ± 1%

Insulation system according to UL 1446: on request

Electromagnetic compatibility: EN 61000-6-2 - EN 61000-6-3

Winding pitch: 2/3


*With load from 0 to 100%, speed variation from -2% to +5%, power factor 0.8 linear and balanced load

**Line to line, at full linear and balanced rated load


Technical Information

Standards: IEC 60034-1, IEC 60034-2, IEC 60034-22, EN 61000-6-2, EN 61000-6-3

Protection degree: Standard is IP21; higher protection degree on request

Bearings: Bearings are dimensioned for heavy duty

Transient features: Transient voltage drop for rated step load at 0.8 power factor is less than 18%

Single-phase operation: JB4 alternators can be connected for single-phase use


KVA Power range at 60HZ

Single-phase: 52.5-87.5 Three-phase: 75-125

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