Overview
The Carling DA2-B0-46-620-121-C is a 20-ampere, 2-pole circuit breaker engineered for general-purpose electrical protection in panel-mount configurations. Carling Technologies is a switch manufacturer and circuit breaker manufacturer with registered manufacturing facilities and technical sales offices worldwide. This DA2-series breaker delivers dependable protection for industrial machinery, control systems, and distribution panels where medium-voltage switching and thermal-magnetic trip coordination are required.
Key Features
- 20-ampere current rating with 2-pole configuration for balanced phase protection
- Unique arc chute design which allows for interrupting capacities of up to 10,000 amps, reducing nuisance tripping on high amp loads
- Thermoset glass filled polyester half shelf construction provides increased mechanical and electrical strength
- Handle-operated reset actuator for manual control and emergency isolation
- Panel-mount installation with standard stud terminal connectivity
- Hydraulic-magnetic tripping mechanism with medium delay characteristics
Technical Specifications
The DA2-B0-46-620-121-C meets industry standards for electrical safety and performance, with ratings suitable for 240V and 277V AC applications in North American industrial environments. Standard mounting dimensions accommodate most panel cutout configurations, and the breaker is UL recognized for general-purpose circuit protection.
Typical Applications
- Electrical panel branch protection and load distribution
- Motor control and industrial machinery circuits
- HVAC and facility distribution systems
- General industrial switchgear and control systems
- Lighting and power distribution in commercial facilities
Compatibility & Replacements
Compatible With
- Standard industrial electrical panels with DIN or NEMA-style mounting
- Circuit protection systems requiring 20A, 2-pole protection
- Control systems and machinery operating at 240V or 277V AC
- General-purpose power distribution networks
Replaces / Drop-In Replacement For
The DA2-B0-46-620-121-C may replace other Carling DA2 series breakers with identical amperage and pole ratings. For specific cross-reference verification, consult the Carling Technologies part numbering guide or contact your system integrator. Do not assume compatibility based on similar part numbers alone.
Works With
- Standard thermal-magnetic and hydraulic-magnetic trip coordination systems
- NEMA and UL-compliant panel mounting configurations
- Manual disconnect and isolation control schemes
- Medium-delay trip timing coordination with downstream protection devices
