Overview
The Und. Lab Inc. DL-21 NI circuit breaker is a UL-certified electrical protection device engineered for both residential and industrial electrical systems. This 2-pole unit features the STAB-LOK type NA-NI terminal and mounting design, ensuring compatibility with standard electrical panels. Built to meet UL 489 standards for molded-case circuit breakers, the DL-21 NI delivers consistent overcurrent protection and safe circuit isolation.
Key Features
- 2-pole configuration for dual-circuit protection
- STAB-LOK type NA-NI quick-connect terminal design for secure panel installation
- UL-certified for residential and industrial electrical applications
- Reliable overcurrent and short-circuit protection
- Durable construction for long service life
Technical Specifications
- Poles: 2
- Terminal Type: STAB-LOK NA-NI
- UL Certification: UL 489 molded-case circuit breaker standard
- Application: Residential and industrial electrical panels
- Protection Type: Overcurrent and short-circuit
Typical Applications
The DL-21 NI circuit breaker is suitable for use in:
- Residential electrical distribution panels
- Commercial building electrical systems
- Industrial control panel installations
- Main distribution boards and sub-panels
- Equipment protection circuits requiring dual-pole switching
Compatibility & Replacements
Compatible With
- Standard electrical panels designed for STAB-LOK quick-connect breakers
- NA-NI terminal configuration systems
- UL 489-rated panel slots
- Dual-pole circuit protection applications
Replaces / Drop-In Replacement For
For specific replacement applications, verify compatibility with your panel manufacturer or system integrator before ordering, as STAB-LOK type NA-NI breakers are designed for specific panel models.
Works With
- Standard electrical distribution panels with STAB-LOK receptacles
- Industrial control systems using dual-pole circuit isolation
- UL-certified electrical equipment and enclosures
