Johnson Controls A28PA-2C, A28PJ-1C Data Sheet

A28PJ, A28PA Thermostat

Multi-Stage Electromechanical Temperature Controls

Code No. LIT-1927130

A28 Two-Stage Agricultural Thermostat with NEMA 4X Enclosure

Description

The A28PJ and A28PA are two-stage temperature controls with raintight and dusttight enclosures.

Refer to the A28 Series Two-Stage

Temperature Controls with NEMA 1 Enclosure

Product Bulletin (LIT-125130) for important

product application information.

Features

• rugged thermoplastic gasketed enclosures that meet NEMA 4X specifications

• O-ring sealed setpoint adjustment knobs

• range scale with oversized white markings for easy readability in low light

• exposed portion of liquid-filled sensing elements are plated and plastic coated to resist damage in corrosive atmospheres

Selection Chart

Product Code Number Switch Action Range °F (°C) Differential F° (C°) Bulb and Capillary Range Adjuster

A28PJ-1C Two-SPDT 30 to 110

A28PA-2C Two-SPDT 30 to 110

Applications

Designed for use in agricultural and industrial applications that require compliance with Article 547 of the National Electrical Code.

Repair Information

If the A28 Two-Stage Agricultural Thermostat with NEMA 4X Enclosure fails to operate within its specifications, replace the unit. For a replacement thermostat, contact the nearest Johnson

Controls®

(-1 to 43)

representative.

2 (1.1) each stage 2 to 7 (1.1 to 3.9) adjustable between stages

1-3/8 in. x 2-1/4 in. coiled

Knob

Technical Specifications

Electrical Ratings

Motor Ratings VAC 120 208 240 277

A28PJ

AC Full Load A 6.0 3.4 3.0 – AC Locked Rotor A 36.0 20.4 18.0 –

Non-Inductive or Resistance Load A (Not Lamp Loads)

Pilot Duty 125 VA, 24 to 277 VAC

AC Full Load A 16.0 9.2 8.0 – AC Locked Rotor A 96.0 55.2 48.0 –

Non-Inductive or Resistance Load A (Not Lamp Loads)

Pilot Duty 125 VA, 24 to 277 VAC

1. When used as a two-circuit control, the total connected load must not exceed 2,000VA.

10.0 9.2 8.0 7.2

A28PA

16.0 9.2 8.0 7.2

The performance specifications are nomina l and con form to accep table ind ustry stand ards. For applicati ons at con ditions be yond these specification s, consult th Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2015 Johnson Controls, Inc.

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