The A99B series temperature sensors are passive PTC (positive temperature coefficient) sensors. The A99B sensors are splasHProof and are designed to measure temperature in a variety of refrigeration applications. Several accessories allow easy tailoring of the temperature sensor to various mounting configurations. Applications include temperature sensing for freezers and coolers, as well as in defrost termination sensing, space and return air temperature sensing, and condenser fan cycling.,
,

Johnson Controls A99BB-200C

Robertshaw Controls A30-3815 Ice Bin Control 27-49 Degrees 64" Capillary,
,

Johnson Controls Penn A421GBF-02C Low Voltage Digital Temperature Control, 24 volt, SPDT, 6 feet Capillary Length

• IP20 standard enclosure for DIN rail and surface-mount applications
• Rated for 24 VAC class 2, safety extra low voltage

Johnson Controls A72AA-22 Temperature Control Two Pole 25-90 Degrees Diff 4-25 Degrees 6
,
,

Ranco A30-3618 Constant Differential Constant Cut-In Temperature Control,Sid Harvey Item #:A30-3618: Replaces Part #:'s : 502-014A | 502014A |,

,

Ranco Invensys A30-1769 Temperature Control, -19.5 deg F Warm Cut-In, 5 deg F Cold Cut-Out, 240 VAC, 36" Capillary Length

• Shaft reset
• Tin capillary style
• 2-3/16" mounting center

,
,

Johnson Controls Penn A70HA-1C 4-Wire 2-Circuit Temperature Control, 15 - 55 deg F, 120/208/240 VAC, 240" Capillary

• A70 series temperature control incorporates a vapor-charged sensing element
• A70H have a 4-wire, 2-circuit contact block that contains 2-isolated sets of contacts
• Contacts are designed so that when the main contact opens, the auxiliary contact closes
• Long life contact structure with high contact force right up to break, no bounce on make
• Heavy gauge"low profile" stainless steel element cup to protect against mechanical damage
• Make reset models are"trip-free"
• Auxiliary contact can be used to actuate an alarm circuit when the main contact opens
• Plus or minus 2 deg F temperature sensitivity
• Line voltage mechanical thermostat
• Remote sensing capability
• Coil freeze protection with alarm circuit

,
,

Johnson Controls A70HA-1

Ranco A30-313 Constant Differential Temperature Control, -20 to 21 deg F, 24/120/240/277 VAC, 42" Capillary

• Laser-welded stainless steel bellows
• High-amperage contacts
• Pneumatic action provided by vapor-filled capillary or capillary with bulb sensing elements
• Standard 1/4" quick connect terminals with optional screw terminals

Sid Harvey Item #:A30-313: Replaces Part #:'s : A-4646,
,

Johnson Controls A421ABC-02C 1-Stage Electronic Temperature Control, -30,
,

Johnson Controls A421ABC-02C

Sid Harvey C138-4 Freeze Alert Telephone Device (FCC Approved),
,