Telco Envirotrols Inc.

Women's Business Enterprise National Council

 

Specializing in Environmental Equipment, Controls, and Parts

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A72 Series

Two Pole Heavy Duty Temperature Controls (Adjustable Differential)

Description

The A72 Series temperature controls incorporate a vapor charged sensing element and heavy duty contacts.

Applications

Use for automatic control of heavy electrical loads.

Features

The double-pole single-throw contact block contains two isolated sets of contacts that make or break simultaneously.

Replacement Covers

Code Number Description
CVR17A-620R Automatic Reset Cover
CVR17A-621R Manual Reset Cover

Electrical Ratings

Motor Ratings VAC 120

1 phase

 2081

1 phase

 2401

1 phase

 2201

2 phase

 208

 3 phase

 220

3 phase
Horsepower 2 3 3 5 5 5
AC Full Load Amp 24.0 24.0 24.0 15.0 15.9 15.0
AC Locked Rotor Amp 144.0 144.0 144.0 90.0 95.4 90.0
AC Non-Inductive Amp 24.0 24.0 24.0 - - -
DC Non Inductive Amp2 3.0 - 0.5 - - -
Pilot Duty - Both Poles 125VA, 120 to 600 VAC and 57.5 VA, 120 to 300 VDC

1.    These full load and locked rotor ampere (not horsepower) ratings apply to hermetic compressors only.

2.    This rating does not apply to A72AP-1 control.

Selection Chart

Code Number Switch Action Range F (C) Diff F (C) Bulb and Capillary Max Bulb Temp F (C) Range Adjuster
A72AA-1C DPST Close High Open Low -30 to 30

(-34 to -1)

 4 to 25 (2 to 14) 3/8 in. x 3 in.1 6 ft. Cap 200 (93) Screwdriver slot
A72AA-2C DPST Close High Open Low 15 to 55

(-9 to 13)

 3 to 30 (1.7 to 17) 3/8 in. x 3 in.1 6 ft. Cap 200 (93) Screwdriver slot
A72AA-3C DPST Close High Open Low 50 to 90

(10 to 32)

 3 to 30 (1.7 to 17) 11/16 in. x 6 3/4 in. Cross Ambient 6 ft. Cap 135 (57) Screwdriver slot
A72AP-1C2 DPST Close High Open Low -10 to 65

(-23 to 18)

 4 to 40 (2 to 22) 11/16 in. x 6 3/4 in. Cross Ambient 6 ft. Cap 130 (54) Screwdriver slot

1.    Packing nut assembly available for direct immersion applications, Part No. FTG13A-600R.

2.    Equipped with manual "PUSH TO START" button.  Manual start feature is especially desirable on milk cooler jobs...permits manual start of the compressor when bulb temperature is between closing and opening of switch.

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Last modified: 05/07/08