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A70 Series
Four-Wire, Two-Circuit
Temperature Control
Description
The A70 Series temperature control incorporates a
vapor-charged sensing element. The A70G, A70H, and A70K have a 4-wire,
2-circuit contact block that contains two isolated sets of contacts.
The contacts are designed so that when the main contact
opens, the auxiliary contact closes.
Applications
Typical applications include energizing an indicator
light after a low temperature cutout on a ventilating system.
Features
- ling life, snap-acting contacts
- automatic or manual reset models
Replacement Covers
|
Code Number |
Description |
|
CVR17A-620R |
Automatic Reset Cover |
|
CVR17A-621R |
Manual Reset Cover |
Electrical Ratings
|
Pole Number |
LINE-M2 (Main |
Line-M1 (Auxiliary) |
|
Motor Ratings VAC |
120 |
208 |
240 |
277 |
4801 |
6001 |
120 |
208 |
240 |
277 |
|
AC Full Load Amp |
16.0 |
9.2 |
8.0 |
- |
5.0 |
4.8 |
6.0 |
3.4 |
3.0 |
- |
|
AC Locked Rotor Amp |
96.0 |
55.2 |
48.0 |
- |
30.0 |
28.8 |
36.0 |
20.4 |
18.0 |
- |
|
AC Non-Inductive Amp |
16.0 |
9.2 |
8.0 |
7.2 |
- |
- |
6.0 |
6.0 |
6.0 |
6.0 |
|
Pilot Duty - Both Poles |
125VA, 120 to 600 VAC and 57.5 VA, 120 to 300 VDC |
1. Not compressor motor loads.
Selection Chart
A70 Series Four-Wire,
Two-Circuit Temperature Control
|
Code Number |
Switch Action |
Range F (C) |
Diff F (C) |
Bulb and Capillary |
Max Bulb Temp F (C) |
Range Adjuster |
|
Main Contacts |
Auxiliary Contacts |
|
A70GA-1C1 |
Open Low |
Close Low |
15 to 55
(-9.4 to 12.8) |
5 (2.8) |
20 ft. of 1/8 in. O.D. Tubing |
400 (204.4) |
Screwdriver Slot |
|
A70GA-2C |
Open Low |
Close Low |
35 to 80
(1.7 to 26.7) |
3 to 3.0 (-16.1 to -1.1) factory set at 12 (-11.1) |
3/8 in. x 3 in., 6 ft. Cap |
250 (121) |
Screwdriver Slot |
|
A70HA-1C1 |
Open Low |
Close Low |
15 to 55
(-9.4 to 12.8) |
Manual Reset |
20 ft. of 1/8 in. O.D. Tubing |
400 (204.4) |
Screwdriver Slot |
|
A70HA-2C |
Open Low |
Close Low |
35 to 80
(1.7 to 26.7) |
Manual Reset |
3/8 in. x 3 in., 6 ft. Cap |
250 (121) |
Screwdriver Slot |
|
A70KA-1C |
Open High |
Close High |
100 to 170 (37.8 to 76.7) |
Manual Reset |
3/8 in. x 3 in., 6 ft. Cap |
240 (116) |
Screwdriver Slot |
1. The low cutout stop is set
and sealed at 35°F (1.6°C) The control responds only to the lowest
temperature along any one ft. of the entire 20 ft. element or bellows cup.
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