849-ZAB321

849-ZAB321

Description:

The Allen-Bradley 849-ZAB321 Pneumatic Timing Relay is a rugged timing relay that is made for industrial applications in hazardous environments where other kinds of timing relays may increase the risk of fires or explosions. This pneumatic relay is a member of the 849 Timing Relay series. The relay achieves a time delay with an open pneumatic damping system that activates the relay contacts for a user-defined amount of time.

Rated 4.8 with 16 reviews

Preowned

Includes a 1-Year DO Supply warranty.

DO Supply is not an authorized distributor for Allen Bradley.

top legal disclaimer
top legal disclaimer

credit cards accepted
better business bureau

Available Now

Submit RFQ for 849-ZAB321

Add more parts to quote

Description:

The Allen-Bradley 849-ZAB321 Pneumatic Timing Relay is a rugged timing relay that is made for industrial applications in hazardous environments where other kinds of timing relays may increase the risk of fires or explosions. This pneumatic relay is a member of the 849 Timing Relay series. The relay achieves a time delay with an open pneumatic damping system that activates the relay contacts for a user-defined amount of time.


Preowned

Includes a 1-Year DO Supply warranty.

DO Supply is not an authorized distributor for Allen Bradley.

top legal disclaimer
disclaimer
credit cards
better business bureau

Warranty: 1 year DO Supply Warranty Included
Shipping: Worldwide shipping via DHL, UPS, Fedex, and TNT
Repairs: We offer repair service for the 849-ZAB321.
Exchange: Exchange credit for your defective unit available.
Conditions: We sell preowned surplus and refurbished parts.

To speak to a sales representative for pricing & lead time:


Rated 4.8 with 16 reviews

    Technical Specifications for 849-ZAB321

BrandAllen-Bradley / Rockwell Automation
Series849 Timing Relays
Part Number849-ZAB321
Product DescriptionPneumatic Timing Relay
Type of Delay On-Delay
Time Range0.05 to 180 Seconds
Visual IndicationsPresent
Type of Electrical ContactsNormally Open
Maximum Voltage600V AC
Nominal Voltage Range220 to 240V AC
Nominal Frequency50 to 60 Hz
Environmental Protection RatingIP 20
Operating Temperature0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit)
Relative Humidity5 to 95% (non–condensing)
BrandAllen-Bradley / Rockwell Automation
Series849 Timing Relays
Part Number849-ZAB321
Product DescriptionPneumatic Timing Relay
Type of Delay On-Delay
Time Range0.05 to 180 Seconds
Visual IndicationsPresent
Type of Electrical ContactsNormally Open
Maximum Voltage600V AC
Nominal Voltage Range220 to 240V AC
Nominal Frequency50 to 60 Hz
Environmental Protection RatingIP 20
Operating Temperature0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit)
Relative Humidity5 to 95% (non–condensing)
s

About 849-ZAB321

The Allen-Bradley 849-ZAB321 Pneumatic Timing Relay is a 600 Volts AC rated 849 Series time-delay switch that uses a pneumatic bellows system to delay a device’s contact activation until a user-defined time interval has been completed. This time delay is achieved by a set of mechanical links that join a magnetically activated shaft and the pneumatic bellows to the contacts in the relay, in a way that extends the time it takes for the contact to change status after an electrical coil is activated. When the electrical signal reaches the coil in the Allen-Bradley 849-ZAB321 Pneumatic Timing Relay, it will magnetically attract a metal shaft, and this sets a valve in motion to release the air contained inside the pneumatic bellows. As the bellows empty out, the electrical contacts get closer to each other until their status changes from open to closed, and they start conducting an electrical current.



 



The Allen-Bradley 849-ZAB321 Pneumatic Timing Relay from the 849 Series has a user-configurable amount of time that it takes to engage the electrical contacts. Its minimum delay time can be set to 0.05 seconds and its maximum delay time can be set to 180 seconds. The electrical contacts of the Allen-Bradley 849-ZAB321 Pneumatic Timing Relay are normally open and they have a spring return system that brings them back to their default position after the electrical coil is de-energized. The delay-type is the on-delay type, meaning that the electrical contacts in the device will not change status immediately after the coil receives an activation signal, but they will wait until all of the air inside the pneumatic bellows is displaced before closing the circuits.



Repair Services for 849-ZAB321

Type Lead Time Price Action
Repair Service 2-4 weeks Askenvelope Get Quote

Our highly skilled technicians can repair your 849-ZAB321. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Dimensions For 849-ZAB321

Size
Input Type
Panel Cutout Height in mm
Panel Cutout Width in mm
Terminal Height in mm
Terminal Width in mm
Terminal Overall Depth in mm
Terminal Mounted Depth in mm

Dimensions For 849-ZAB321

Resolutions For 849-ZAB321

About

Technical Specifications for 849-ZAB321

BrandAllen-Bradley / Rockwell Automation
Series849 Timing Relays
Part Number849-ZAB321
Product DescriptionPneumatic Timing Relay
Type of Delay On-Delay
Time Range0.05 to 180 Seconds
Visual IndicationsPresent
Type of Electrical ContactsNormally Open
Maximum Voltage600V AC
Nominal Voltage Range220 to 240V AC
Nominal Frequency50 to 60 Hz
Environmental Protection RatingIP 20
Operating Temperature0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit)
Relative Humidity5 to 95% (non–condensing)
BrandAllen-Bradley / Rockwell Automation
Series849 Timing Relays
Part Number849-ZAB321
Product DescriptionPneumatic Timing Relay
Type of Delay On-Delay
Time Range0.05 to 180 Seconds
Visual IndicationsPresent
Type of Electrical ContactsNormally Open
Maximum Voltage600V AC
Nominal Voltage Range220 to 240V AC
Nominal Frequency50 to 60 Hz
Environmental Protection RatingIP 20
Operating Temperature0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit)
Relative Humidity5 to 95% (non–condensing)

About 849-ZAB321

The Allen-Bradley 849-ZAB321 Pneumatic Timing Relay is a 600 Volts AC rated 849 Series time-delay switch that uses a pneumatic bellows system to delay a device’s contact activation until a user-defined time interval has been completed. This time delay is achieved by a set of mechanical links that join a magnetically activated shaft and the pneumatic bellows to the contacts in the relay, in a way that extends the time it takes for the contact to change status after an electrical coil is activated. When the electrical signal reaches the coil in the Allen-Bradley 849-ZAB321 Pneumatic Timing Relay, it will magnetically attract a metal shaft, and this sets a valve in motion to release the air contained inside the pneumatic bellows. As the bellows empty out, the electrical contacts get closer to each other until their status changes from open to closed, and they start conducting an electrical current.



 



The Allen-Bradley 849-ZAB321 Pneumatic Timing Relay from the 849 Series has a user-configurable amount of time that it takes to engage the electrical contacts. Its minimum delay time can be set to 0.05 seconds and its maximum delay time can be set to 180 seconds. The electrical contacts of the Allen-Bradley 849-ZAB321 Pneumatic Timing Relay are normally open and they have a spring return system that brings them back to their default position after the electrical coil is de-energized. The delay-type is the on-delay type, meaning that the electrical contacts in the device will not change status immediately after the coil receives an activation signal, but they will wait until all of the air inside the pneumatic bellows is displaced before closing the circuits.



Repairs
Type Lead Time Price Action
Repair Service 2-4 weeks Askenvelope Get Quote

Our highly skilled technicians can repair your 849-ZAB321. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Type Lead Time Price Action
Repair Service 2-4 weeks Askenvelope Get Quote

Our highly skilled technicians can repair your 849-ZAB321. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

PDF