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General| Number of Poles | 1, 2, 3 |
|---|---|
| Voltage Rating | 240V AC, 480V AC, 600V AC |
| Frame Size | AKR |
| Trip Unit | Thermal-Magnetic |
| Standards | UL, CSA |
| Amperage | Varies by model (15-1200) |
Lists critical safety measures before starting any breaker maintenance.
Details the procedure for adjusting the manual handle for spring charging.
Describes the criteria and process for maintaining breaker contacts.
Provides the procedure for adjusting the contact wipe on AKR-30 series breakers.
Details the procedure for adjusting contact wipe on AKR-50 series breakers.
Explains how to adjust contact wipe for the AKRT-50 breaker type.
Details contact replacement for AKR-30, 30H, and AKRU-30 breakers.
Describes contact replacement for AKR-50, 50H, AKRU-50, and AKRT-50 breakers.
Discusses fused AKRU breakers and their similarities to unfused AKR models.
Lists available fuse sizes and mounting instructions for AKRU breakers.
Details the procedure for replacing the special 2500A fuse on AKRU-50 breakers.
Refers to information on the open fuse lockout device.
Describes the function and features of the SST programmer unit.
Explains the role and function of current sensors in the SST system.
Details the operating principle of the SST Ground Fault trip element.
Discusses the use of the Ground Fault element in 4-wire systems with neutral grounding.
Describes the flux shift trip device and its function in tripping the breaker.
Explains how to use the SST Test Set for field-checking trip characteristics.
Addresses nuisance tripping causes and checks for breakers with the Ground Fault element.
Details the steps for removing and replacing individual SST current sensors.
