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5D51-35
WARM AIR
CONTROLS FAN/LIMIT
?
PAGES
194–196
5D51 SERIES
UNIVERSAL FAN AND LIMIT CONTROLS
Single Element Type for Applications with Narrow Space
Limitations. Regulates Fan or Blower Operation and Acts
as High Limit Safety Control
FEATURES
• Slotted mounting holes for easy installation.
• Long terminal screws for wiring — Junctions can be made on terminal block.
• Dial has individual pointers for fan cut-in and cut-out settings.
• Removable solid copper jumper between fan and limit switches.
• Summer fan switch for ventilation without changing control settings. Has same fan
and limit switch mechanism.
SPECIFICATIONS
Agency . . . . . . . . . . . . . . . . . . . . . . . . . . . U.L. recognized and C.S.A. approved
Dimensions . . . . . . . . . . . . 2.9 ”W x 4.3”H x 1.6” D
Model
Number
Element
Length Description Range Differential
Switch
Action
Full
Electrical
Rating
Motor Rating
(Full Load)
Valves and
Relays
120 VAC 240 VAC 24 VAC
0.3-12V
DC
5D51-35 5” Fan 50 to 265°F
(10 to 129°C)
Adjustable
15°F minimum
Fixed 25°F
Close on Rise HT
See page 222
14.0A 7.0A 5.6A —
5D51-90 8” Limit 100 to 300°F
(38 to 149°C)
Open on Rise HTV
See page 222
10.0A 6.0A 6.0A 1.0A
5D51-78 11”
3L09 SERIES BOARD MOUNT LIMIT CONTROLS
1/2” Bimetal Disc with Ranges for Your System Needs
FEATURES
• Proven reliability in a compact, versatile, cost-effective design.
• Provides high-speed contact separation.
• OEM replacement for competitive models.
SPECIFICATIONS
Dimension drawings and specifications . . . . . . . . . . . . . . . . . . See pages 194–196
Model
Number
Figure
(pages
194-196)
Construction
(pages
194-196)
Opens/
Closes
(°F)
Length
(in inches)
TOD
Type
TOD
Style
3L09-1 1 140/100 1.87 36T 612700
3L09-2 1 170/130 1.87 36T 612708
3L09-3 2 A 140/110 3.12 36T 612701
3L09-4 2 C 150/130 3.12 36T 612703
3L09-5 2 C 160/140 3.12 36T 612706
3L09-6 2 B 170/130 3.12 36T 612710
3L09-7 2 A 175/145 3.12 36T 612711
3L09-8 2 B 180/140 3.12 36T 612714
3L09-9 2 C 190/170 3.12 36T 612715
3L09-10 2 B 200/160 3.12 36T 612718
3L09-11 2 B 210/170 3.12 36T 612719
3L09-12 2 B 220/180 3.12 36T 612722
3L09-13 2 A 240/210 3.12 36T 612723
3L09-14 2 B 250/210 3.12 36T 612725
Model
Number
Figure
(pages
194-196)
Construction
(pages
194-196)
Opens/
Closes
(°F)
Length
(in inches)
TOD
Type
TOD
Style
3L09-15 2 A 260/230 3.12 36T 612727
3L09-16 3 A 150/130 3.12 36T 612704
3L09-17 3 A 250/225 3.12 36T 612726
3L09-18 3 B 155/125 7.12 36T 612705
3L09-19 3 B 175/145 7.12 36T 612712
3L09-20 3 B 240/210 7.12 36T 612724
3L09-22 4 A 160/140 3.12 36T 612707
3L09-23 4 A 170/150 3.12 36T 612709
3L09-24 4 B 190/170 3.12 36T 612716
3L09-25 4 B 200/180 3.12 36T 612717
3L09-26 5 180/160 1.87 36T 612713
3L09-27 5 220/200 1.87 36T 612721
3L09-28 6 210/180 3.12 36T 612720
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