user instructions
711 HULMAN STREET
TERRE HAUTE, IN 47802
812-235-6167
FAX 812-234-6975
Power Controls – Description and Operation
Régulateurs de puissance – Description et mode d’emploi
Description and operation of Glas-Col Minitrol and Minitwin
Catalog Number
Capacity
Catalog Number
Capacity
PL312
12A, 120V
PL324
10A, 240V
PL3122
15A, 120V
The Glas-Col Minitrol and Minitwin are manually adjusted power controls of percentage-timer
design. They are designed to provide full-line voltage to load from 5-1/2% to 100% of time,
depending on the dial position. The OFF position positively breaks both sides of line. The controls
can be used on any non-inductive load up to rated capacity, and smaller fuses may be used for
protection of very small loads.
These controls effectively regulate Glas-Col heating mantles, tapes and cords. Also, they may be
used for small furnaces or ovens, hot plates, dies or other applications requiring infinite control.
The maximum combined load for the PL3122 Minitwin is 1800 Watts (15 amps). Minitwin may
be used for controlling two separate heating circuits of the same mantle or two separate mantles.
The heating circuits may have the same or different power ratings up to 900 Watts (7.5 amps) at 120
Volts.
Load Outlet
(Prise de Courant)
Fusible
Pilot Light
(Indicateur)
Fusible
Load Fuse
(Fusible)
Dial
(Contrôle)
1. c
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