A-B | 140A-C-ASA11 | Side Mounted Auxiliary Contact

Allen-Bradley 140A-C-ASA11 is a side-mounted auxiliary contact accessory designed for the Allen-Bradley Bulletin 140A Manual Motor Starter series. It provides additional electrical contact signals for monitoring starter status, control interlocking, and feedback circuits in industrial motor protection applications.

The 140A-C-ASA11 features one normally open (NO) contact and one normally closed (NC) contact in a compact left-side mounting design. It is installed on 140A manual motor starters without requiring a separate control device, allowing integration with PLC inputs, relay logic, and motor control circuits.

Product Parameters

Parameter	Description
Brand	Allen-Bradley (A-B)
Model	140A-C-ASA11
Series	Bulletin 140A Manual Motor Starter Accessories
Product Name	Side Mounted Auxiliary Contact
Origin / Place of Origin	USA
Product Status	New Surplus / Original New
Accessory Type	Auxiliary Contact Block
Contact Configuration	1 NO + 1 NC
Mounting Type	Left Side Mounting
Width	9 mm
Compatible Device	Allen-Bradley 140A Manual Motor Starter
Function	Provides electrical status feedback and control interlock signals
Contact Terminals	13-14 (NO) / 21-22 (NC)
Installation Position	Side-mounted on motor starter
Weight	Approx. 0.05 kg
Power Supply	Passive contact device, no external power required
Application	Motor control panels, industrial automation systems
Discontinued	Active / legacy accessory depending on regional availability

Q&A

Q: What is the main function of Allen-Bradley 140A-C-ASA11?
A: It provides additional auxiliary contacts for monitoring the ON/OFF status of a 140A manual motor starter and sending status signals to control systems.

Q: Is 140A-C-ASA11 a motor starter or circuit breaker?
A: No. It is an accessory contact block installed on a compatible 140A manual motor starter.

Q: What contact arrangement does this model provide?
A: It provides one normally open contact and one normally closed contact (1NO/1NC).

Q: Where is this auxiliary contact installed?
A: It is mounted on the left side of an Allen-Bradley 140A starter and adds approximately 9 mm to the starter width.

Q: What are common applications?
A: It is commonly used for motor running feedback, PLC monitoring, alarm circuits, and electrical interlocking in industrial control cabinets.

Q: What should be checked before replacement?
A: Verify the 140A starter model, mounting position, contact configuration, terminal arrangement, and accessory part number before installation.