Overview
The Allen-Bradley 1489-A1D150 is a 1-pole thermal-magnetic circuit breaker designed for industrial branch circuit protection. Rated at 15 amps with a Type D trip curve, this unit operates at 277 VAC and 48 VDC, making it suitable for both AC and DC control circuits. Series A construction and UL 489 certification ensure compliance with U.S. and Canadian safety standards.
Key Features
- 1-pole configuration with 15 amp rating
- Type D trip curve for inductive load protection
- Dual voltage: 277 VAC / 48 VDC rating
- Thermal-magnetic protection mechanism
- UL 489 and IEC 60947-2 certified
- Current limiting with Icu 15kA / Ics 7.5kA interrupt ratings
- DIN rail mountable for compact panel installation
Technical Specifications
- Rated Current: 15 Amps
- Poles: 1
- Voltage AC: 277 VAC
- Voltage DC: 48 VDC
- Trip Curve: Type D (Inductive)
- Interrupt Rating AC: 10 kA @ 277 VAC
- Short Circuit Rating Icu: 15 kA
- Short Circuit Rating Ics: 7.5 kA
- Operating Temperature: −40°C to +40°C
- Certification: UL 489, IEC 60947-2
- Series: Series A
- Reference Temperature: 30°C ambient
Typical Applications
- Industrial control panel branch circuit protection
- Motor control circuits with inductive loads
- Machinery and equipment power distribution
- Backup DC power systems requiring 48 VDC protection
- Renewable energy systems with dual voltage requirements
- PLC and automation system power circuits
Compatibility & Replacements
Compatible With
- Allen-Bradley Bulletin 1489 series DIN rail mounting systems
- Standard industrial control panels with DIN rail installation
- IEC-compliant branch circuit protection architectures
- AC and DC power distribution systems rated for 277 VAC and 48 VDC
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 1489-A1D150 is a discontinued product as of April 30, 2014. Check with your controls engineer to identify suitable modern alternatives if planning panel redesign or retrofit.
Works With
- Standard DIN rail mounting infrastructure
- Thermal-magnetic protection logic in industrial switchgear
- Manual and automatic control circuits
- Motor starters and soft-start systems
- Power distribution units (PDUs) and branch circuit protection schemes
