1492-SP1B050 Allen-Bradley 5A 1-Pole Miniature Circuit Breaker B-Curve DIN Rail Supplementary Protector

Description:

• Genuine Allen-Bradley miniature supplementary circuit breaker for industrial control panel protection
• Provides 1-pole, 5 Amp overcurrent protection for industrial control circuits and equipment
• B-Curve trip characteristic designed for resistive and lightly inductive loads with low inrush current
• Rated for 277 VAC and 48 VDC applications
• Thermal-magnetic trip mechanism provides reliable overload and short-circuit protection
• Compact 35 mm DIN rail mounting for fast installation in industrial control panels
• Designed as a UL 1077 supplementary protector for equipment protection where branch circuit protection is provided separately
• Compatible with Bulletin 1492-SP accessories including bus bars, auxiliary contacts, and locking devices
• Ideal for industrial automation, OEM machinery, PLC panels, HVAC controls, and electrical control cabinets
• Discontinued by Rockwell Automation. Recommended replacement: 1492-SPM1B050.

Specifications:

• Manufacturer Name: Allen-Bradley (Rockwell Automation)
• Part Number (MPN): 1492-SP1B050
• Product Series: Bulletin 1492-SP
• Product Type: Miniature Circuit Breaker / Supplementary Protector
• Number of Poles: 1
• Rated Current: 5 A
• Trip Curve: B
• Magnetic Trip Range: 3–5 × Rated Current
• Protection Type: Thermal-Magnetic
• Rated AC Voltage: 277 VAC
• Rated DC Voltage: 48 VDC
• Mounting Type: 35 mm DIN Rail
• Interrupt Rating:
  • 5 kA @ 277 VAC
  • 10 kA @ 48 VDC
• Standards:
  • UL 1077 Recognized
  • CSA Certified
  • IEC Compliant
• Lifecycle Status: Discontinued
• Recommended Replacement: 1492-SPM1B050
• Applications:
  • Industrial Control Panels
  • PLC Panels
  • Machine Automation
  • Control Circuit Protection
  • HVAC Equipment
  • OEM Machinery
  • Electrical Distribution

Dimensions:

• Compact single-module miniature circuit breaker
• Designed for standard 35 mm DIN rail installation.

Weight:

• Approximate Weight: 0.11 kg (0.25 lb).