Rectifier No. 151, 152 & 153
Thyristor controlled rectifier specifically developed for PABX use.

Input:-
Single phase or three phase at 50Hz.

No. 151 and No. 152 - 220-250v AC.

No. 153/100  and 153/300 - 400/415v AC Three phase.

Output:-
54 volt or 24 volt DC.
Ratings 5A to 300A.

No. 151/10 - 27v at 10amps.
No. 151/25 - 27v at 25amps.

No. 152/5 - 54v 5amps.
No. 152/10 - 54v 10amps.
No. 152/25 - 54v 25amps.

No. 153/100 - 54v at 100amps.
No. 153/300 - 54v at 300amps.

Used in parallel with battery of 24 Secondary cells to supply power to customers telephone apparatus in private premises, mainly for PBX equipment. The battery is also required for smoothing.

Specification - PT1299 (No. 151).
Specification - PT1341 (No. 152).
Specification - PT1342 (No. 153).

Rectifier No. 152


 
 
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Last revised: September 26, 2026

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