Catalogs > Industrial Controls Catalog > Motor Control, Solid-State > Contactors
Contactors
| Introduction |  |
Standards Compliance and Certifications | |
Product Selection | |
Specifications | |
Approximate Dimensions | |
Current Monitoring Operation | |
Multi-Function Analog Operation | |
Dimensions in millimeters. Dimensions are not intended for manufacturing purposes.
Refer to column 3 of the Power Output table on for cat. no. dimension reference.
22.5 mm
|
45 mm (shown with fan)♣
|
♣ The fan adds approximately 28 mm to the height of the SSC. Subtract 28 mm for the approximate height of SSCs without fans. Refer to for products with fans.
90 mm (shown with fan)♣
|
♣ The fan adds approximately 28 mm to the height of the SSC. Subtract 28 mm for the approximate height of SSCs without fans. Refer to for products with fans.
Overtemperature Alarm Cutout/Protection Operation
The Bulletin 156-B… Solid-State Contactor (SSC) with a fan (Cat. Nos. 156-B75...1, 156-B90...1, and 156-B32...3) has an overtemperature alarm, cutout/protection feature. The cutout feature protects the SSC electronic switching circuit from overtemperature damage by automatically switching off the output (load) when the core temperature of the SSC exceeds 125 °C (257 °F). In this condition the fan will be running unless there is a fan circuit issue. When the cutout occurs the SSC red LED will light and if the alarm contact is wired it will close to notify a monitoring device such as the PLC of the condition. The following diagram provides additional details.
Note:For a standard unit without an overtemperature alarm. The SCO protective cutout feature still functions. When the unit cools to within allowable limits it returns to operation.
|
