Refrigeration Controllers
L480; L482 Refrigeration Controller
Used to limit or control temperature in air conditioning systems or refrigerated enclosures.
• Applications include freezer cabinets, display cases, beverage coolers, milk cooling tanks and air conditioners
• Can act as a frost alarm operator in storehouses or orchards where frost would damage crops or equipment
• Dual temperature scaleplate provided for both Fahrenheit and Celsius readings
L482 Dimensions in inches (millimeters)
SETPOINT
SCALE
20 FT BY 1/8 INCH SENSING ELEMENT
4 (101) 
PUSH
SETPOINT TO ADJUSTMENT RESET
SCREW
4-11/16
(119)
7/8 (22) HOLE FOR 1/2 CONDUIT WITH 1-3/32 (28) KNOCKOUT RING FOR 3/4 CONDUIT
2-3/32
(53)
3/8 X 3/16 |
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(10 X 5) |
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DIAMETER |
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ELONGATED |
1-7/8 |
3/16 (5) |
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MOUNTING |
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(48) |
DIAMETER |
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HOLE |
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MOUNTING |
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HOLE |
1-1/8 (29) |
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5/16 |
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(8) |
1 (25) |
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MOUNTING |
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HOLES (2) |
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10-32 UNF-2B |
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THREAD |
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5/16 (8) |
3-1/4 (83) |
C606A |
L482 Dimensions in inches (millimeters)
MANUAL RESET
MODEL ONLY 
3-5/16
(84)
3/16
(5) (2)
5/16
(8) (2)
7/8 (22) DIAMETER HOLE
FOR 1/2 INCH CONDUIT CONNECTION
1-1/16
(27)
2-9/16 (65) (MANUAL RESET MODEL ONLY)
2-9/32
(58)
1-1/16
(27) (2)
3-5/16 (84) |
2-5/16 (59) |
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3-11/16 (94)
M11026A
Type: Averaging element Voltage: 120 Vac; 240 Vac
Frequency: 50 Hz; 60 Hz
Sensor Element: Coldest point on the capillary
Capillary Length: 20 ft (6.1 m)
Approvals
Canadian Standards Association: Certified: File No. LR95329-1 Underwriters Laboratories, Inc: File: SA481, Guide: SDFY
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Maximum |
Setting |
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Differential |
Operating |
Temperature |
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Temperature |
Temperature |
Range |
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Contact Ratings |
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Product Number |
Application |
(F) |
(C) |
(F) |
(C) |
(F) |
Switching |
(120 Vac) |
(240 Vac) |
Comments |
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L480B1239/U |
Acts as frost alarm in |
10 F |
5.6 C |
125 F |
52 C |
20 F to 60 F |
1 SPDT |
10.2 |
AFL, |
6.5 AFL, |
— |
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storehouses, orchards, or other |
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61.2 |
ALR |
39.0 ALR |
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locations where frost could |
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damage crops or equipment |
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L480G1044/U |
For temperature or limit control |
15 F |
8 C |
125 F |
52 C |
20 F to 60 F |
1 SPST |
10.2 |
AFL, |
6.5 AFL, |
Manual reset |
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of air conditioning systems and |
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61.2 |
ALR |
39.0 ALR |
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refrigeration units |
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L482A1004/U |
Provides temperature or limit |
5 F |
2.8 C |
140 F |
60 C |
15 F to 55 F |
2 SPST, one |
Aux: 6.0 AFL, |
Aux: 3.0 |
Manual reset |
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control of air conditioning |
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N.O., one N.C. |
36.0 |
ALR |
AFL, 18.0 |
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systems by operating electric |
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Main: 8.0 |
ALR |
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motors for dampers, valves, |
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AFL, 48.0 |
Main: 5.1 |
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compressors, or fans |
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ALR |
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AFL, 30.6 |
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ALR |
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<![endif]>Commercial
<![if ! IE]><![endif]>Components
70-6910 |
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339 |
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