A421 Series Standard Electronic Temperature Controls Installation Instructions
14
Ordering Information
See Table 6 to order a standard A421 Series Electronic
Temperature Control. See Table 7 and Table 8 to order
A99 sensors, mounting hardware, and other
accessories used to install A421 controls. Contact your
nearest Johnson Controls/PENN distributor or sales
representative to order these products.
Table 6: A421 Series Standard Electronic Temperature Controls Selection Chart
Product Type Description
A421ABC-02C Line-Voltage Type 1 Electronic Temperature Control: Type 1 (NEMA), IP20 standard enclosure for
DIN rail and surface-mount applications. Rated for 120/240 VAC. Includes an A99BB-200C temperature
sensor with 6.6 ft (2.0 m) cable.
A421ABC-03C Line-Voltage Type 1 Electronic Temperature Control: Type 1 (NEMA), IP20 standard enclosure for
DIN rail and surface-mount applications. Rated for 120/240 VAC. Includes an A99BB-300C temperature
sensor with 9.75 ft (3.0 m) cable.
A421ABC-04C Line-Voltage Type 1 Electronic Temperature Control: Type 1 (NEMA), IP20 standard enclosure for
DIN rail and surface-mount applications. Rated for 120/240 VAC. Includes an A99BB-400C temperature
sensor with 13.1 ft (4.0 m) cable.
A421ABC-06C Line-Voltage Type 1 Electronic Temperature Control: Type 1 (NEMA), IP20 standard enclosure for
DIN rail and surface-mount applications. Rated for 120/240 VAC. Includes an A99BB-600C temperature
sensor with 19.5 ft (6.0 m) cable.
A421AEC-01C Line-Voltage Type 4X Electronic Temperature Control: Type 4X (NEMA), IP66 watertight enclosure
for surface-mount applications. Rated for 120/240 VAC. Includes an A99BB-25C temperature sensor
with 9-7/8 in. (0.25 m) cable.
A421AEC-02C Line-Voltage Type 4X Electronic Temperature Control: Type 4X (NEMA), IP66 watertight enclosure
for surface-mount applications. Rated for 120/240 VAC. Includes an A99BB-200C temperature sensor
with 6.6 ft (2.0 m) cable.
A421GBF-02C Low-Voltage Type 1 Electronic Temperature Control: Type 1 (NEMA), IP20 standard enclosure for
DIN rail and surface-mount applications. Rated for 24 VAC Class 2, Safety Extra Low Voltage. Includes
an A99BB-200C temperature sensor with 6.6 ft (2.0 m) cable.
A421GEF-01C Low-Voltage Type 4X Electronic Temperature Control: Type 4X (NEMA), IP66 watertight enclosure
for surface-mount applications. Rated for 24 VAC Class 2, Safety Extra Low Voltage. Includes an
A99BB-25C temperature sensor with 9-7/8 in. (0.25 m) cable.
A421GEF-02C Low-Voltage Type 4X Electronic Temperature Control: Type 4X (NEMA), IP66 watertight enclosure
for surface-mount applications. Rated for 24 VAC Class 2, Safety Extra Low Voltage. Includes an
A99BB-200C temperature sensor with 6.6 ft (2.0 m) cable.
Table 7: A99 Temperature Sensors Selection Chart
1
(Part 1 of 2)
Product Code Description
A99BA-200C PTC Temperature Sensor: Standard probe 2 in. (5.1 cm) with 6.6 ft (2.0 m) shielded PVC cable;
Ambient operating temperature range: -40 to 212ºF (-40 to 100ºC)
A99BB-25C PTC Temperature Sensor: Standard probe 2 in. (5.1 cm) with 9-7/8 in. (0.25 m) PVC cable;
Ambient operating temperature range: -40 to 212ºF (-40 to 100ºC)
A99BB-200C PTC Temperature Sensor: Standard probe 2 in. (5.1 cm) with 6.6 ft (2.0 m) PVC cable;
Ambient operating temperature range: -40 to 212ºF (-40 to 100ºC)
A99BB-300C PTC Temperature Sensor: Standard probe 2 in. (5.1 cm) with 9.8 ft (3.0 m) PVC cable;
Ambient operating temperature range: -40 to 212ºF (-40 to 100ºC)
A99BB-400C PTC Temperature Sensor: Standard probe 2 in. (5.1 cm) with 13.1 ft (4.0 m) PVC cable;
Ambient operating temperature range: -40 to 212ºF (-40 to 100ºC)
A99BB-600C PTC Temperature Sensor: Standard probe 2 in. (5.1 cm) with 19.7 ft (6.0 m) PVC cable;
Ambient operating temperature range: -40 to 212ºF (-40 to 100ºC)
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