Specifications
Setpoint
Part Type Adjustment
Number Range
°F (°C)
PTC-4111
*
-40 to 120 (-40 to 49)
PTC-4111-020
**
-40 to 120 (-40 to 49)
PTC-4112 Single-Stage 100 to 260 (38 to 127)
PTC-4121 Single-Bulb -40 to 120 (-40 to 49)
PTC-4122 100 to 260 (38 to 127)
PTC-4123 190 to 350 (88 to 176)
PTC-4211
†
-40 to 120 (-40 to 49)
PTC-4221 Tw o-Stage -40 to 120 (-40 to 49)
PTC-4222 Single-Bulb 100 to 260 (38 to 127)
PTC-4223 190 to 350 (88 to 176)
Dimensions
Safe Bulb
Capillary Bulb Differential Temperature
Copper Copper °F (°C) Range
ft. (m) in. (mm) °F (°C)
8 (2.4)
20 (6)
8 (2.4)
10 (3) Armored
10 (3) Armored
10 (3) Armored
8 (2.4)
10 (3) Armored
10 (3) Armored
10 (3) Armored
3/8" dia. x 4"
(9.5 mm x 102 mm)
Factory Set 3 (2)
Adj. 3 to 16 (2 to 9)
-40 to 170 (-40 to 77)
-40 to 170 (-40 to 77)
-40 to 310 (-40 to 154)
-40 to 170 (-40 to 77)
-40 to 310 (-40 to 154)
-40 to 400 (-40 to 204)
-40 to 170 (-40 to 77)
-40 to 170 (-40 to 77)
-40 to 310 (-40 to 154)
-40 to 400 (-40 to 204)
Per Stage Fixed 3 (2)
Between Stages
Set 3 (2)
Adj. 2 to 10 (1 to 5)
PTC-4100 Series & PTC-4200 Series Bulb Thermostats
* PTC-4111 replaces Johnson A19ABC-24,White Rodgers 1609-12, -13
** PTC-4111-020 replaces Johnson A19ABC-36
† PTC-4211 replaces Johnson A28AA-29
®
Maximum Electrical Rating
GENERAL INFORMATION
application
For on-off temperature control of refrigeration
systems.
specifications
Setpoint Dial Range: Dial plate is marked as
°F on one side and °C on the other.
See Table 2 for specific ranges.
sensing element: Liquid-filled copper
differential: See Table 2
ambient temperature limits:
case:
shipping -40 to 160°F (-40 to 71°C)
operating -40 to 150°F (-40 to 65°C)
bulb: See Table 2
electrical switch: snap action SPDT,
one per stage
ratings: See Table 1
connections: Coded screw terminals.
cover: All metal with 1/2" to 3/4" conduit
openings
case locations: NEMA Type 1 indoor only
mounting: case can be mounted in any position
dimensions:
case: 4-5/8" high x 2-1/4" wide x 2" deep
(117 mm x 57 mm x 51 mm)
element and capillary: See Table 2
Switch Rating (50/60 Hz) 24V 120V 240V
Full Load Amps 16.0 16.0 8.0
Locked Rotor Amps 96.0 96.0 48.0
Pilot Duty VA 60 360 360
Non-Inductive Amps (Resistive)
Single-Stage 22 22 22
Tw o-Stage 16 16 8.0
Figure 1. Switch Action and Terminal Identification
Controls Americas
191 E. North Avenue
Carol Stream Illinois 60188 USA
Customer Service Telephone: +1 800 951 5526
Customer Service Facsimile: +1 630 260 7299
3505 Laird Road Unit #14
Mississauga Ontario L5L 5Y7 Canada
Customer Service Telephone: +1 800 668 6958
Customer Service Facsimile: +1 905 828 1265
www.icca.invensys.com
©2005 Invensys Controls Americas 01/05 150-1845
PTC-4100 Series & PTC-4200 Series Bulb Thermostats
®
Typical Single-Stage
N.C.
COM.
N.O. makes on temp. drop.
Typical Two-Stage
LO COM.
HI COM.
N.O. makes on temp. drop.
Temp.
Drop
N.O.
LO N.C.
(1st stage
cool)
Temp. Drop
LO N.O.
HI N.C.
Temp. Drop
HI N.O.
(1st stage
heat)