© 2016 Littelfuse Protection Relays & Controls
Protection Relays
Single Function Relays and Controls
www.littelfuse.com/phs
Rev: 1-A-062116
PHS SERIES
Description
The PHS Series is an ideal method of changing lamp intensity,
varying the speed of a fan/motor, or controlling the temperature
of a heater. The effective output voltage is adjusted with an
accessory external potentiometer suitable for line voltage
applications.
Operation
Upon application of input voltage, effective output voltage
can be varied by changing the external resistance value. As
the external resistance increases, the effective output voltage
decreases. The inverse is also true.
Features & Benefits
FEATURES BENEFITS
External adjustment
- 230VAC rated
potentiometer
Allows control of heavy loads directly, solid state
design will provide long life
Up to 20A steady
state - 200A inrush
Allows control of heavy loads directly, solid state
design will provide long life
Single hole
surface mounting
Provides quick and easy installation
Accessories
P1004-174 (100kΩ 1W), P1004-175 (200kΩ 2W)
Versa-Pot
Panel mountable, industrial potentiometer
recommended for remote time delay adjustment.
P0700-7 Versa-Knob
Designed for 0.25 in (6.35 mm) shaft of
Versa-Pot. Semi-gloss industrial black finish.
P1015-64 (AWG 14/16)
Female Quick Connect
These 0.25 in. (6.35 mm) female terminals are
constructed with an insulator barrel to provide
strain relief.
P1015-18 Quick Connect to Screw Adapter
Screw adapter terminal designed for use with
all modules with 0.25 in. (6.35 mm) male quick
connect terminals.
Wiring Diagram
Ordering Information
MODEL INPUT VOLTAGE RATING
PHS120A10 120VAC 10A
PHS120A20 120VAC 20A
PHS120A6 120VAC 6A
PHS230A10 230VAC 10A
PHS230A20 230VAC 20A
PHS230A6 230VAC 6A
If you don’t find the part you need, call us for a custom product 800-843-8848
Triac Output Device
V = Voltage
L = Load
RT = External Adjustment
Phase Control
