OVERVIEW

Official designation: Allen-Bradley 1492-SP1C100 (Bulletin 1492-SP, Supplementary Protector)

Role/Application: Single-pole thermal-magnetic supplementary protector rated 10 A, C-curve, providing overcurrent protection for general purpose inductive and resistive loads in control and automation panels.

KEY SPECS SUMMARY

Power: 277 V AC (UL), 240 V AC (IEC)

Interfaces / Ports: Dual terminals, Screw termination

Indicators: Toggle position, Red ON/Green OFF

Operating Temp: Minus 25 degrees C to 55 degrees C

Platform / Compatibility: DIN rail mounting, UL 1077, IEC 60947-2

Limit: 10 A Rated Current, 10 kAIC Interrupt Rating

Lifecycle: Discontinued, Refer to the latest manufacturer manual.

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the trip range for the C-curve magnetic function of this 10 A protector?

A: The magnetic trip is activated at 5 to 10 times the 10 A rated current.

Wiring & Installation:

Q: What is the recommended tightening torque for the screw terminals on this protector?

A: The recommended tightening torque for the terminals is 2.4 Newton-meters.

Troubleshooting & Compatibility:

Q: What is the DC voltage rating and maximum breaking capacity for this single-pole device?

A: The rated DC voltage is 48 V DC with a 10 kA breaking capacity.

Replacement & Upgrades:

Q: Are there more modern replacements available for the discontinued 1492-SP series?

A: The current series for replacement is typically the Allen-Bradley Bulletin 1492-SPM.