The trusco 300v 15a 6p totb406na6p is a compact circuit breaker designed for demanding industrial environments. It combines a 300 volt rating with 15 amperes of rated current and six poles, giving reliable protection for complex control panels and multi-phase equipment.
Manufactured under the trusted Trusco brand, this component targets automated machinery, process controllers, and facility power distribution. With its totb406na6p model designation, it fits directly into standardized DIN rail profiles while meeting strict safety certifications.
| Specification | Value | Relevance |
|---|---|---|
| Rated Voltage | 300 V | Suitable for control and auxiliary circuits |
| Rated Current | 15 A | Handles steady load within panel capacity |
| Poles | 6 | Protects full three-phase plus neutrals |
| Model | totb406na6p | Identifies exact DIN rail variant |
| Enclosure | DIN rail mount | Fast integration into control cabinets |
| Safety Standards | UL, IEC compliant | Facilitates global equipment approvals |
Rated Electrical Specifications
Voltage and Current Ratings
The trusco 300v 15a 6p totb406na6p defines its operating limits as 300 volts and 15 amperes. These values align with many industrial control circuits while providing headroom for inductive loads. Exceeding these ratings can trip the breaker or cause premature wear, underscoring the importance of correct system design.
Physical Installation and Compatibility
DIN Rail Mounting Details
The compact design of the totb406na6p supports a snap-in installation onto 35 mm DIN rails. Proper rail alignment and torque prevent vibration-related loosening. Use accessories like terminal guards to protect field wiring under fault conditions.
Application Scope and Use Cases
Typical Industrial Uses
This breaker is common in CNC machines, PLC cabinets, and subpanels where space is constrained. The six-pole layout simplifies wiring for three-phase equipment with multiple control signals. Confirm compatibility with your enclosure cooling and ambient temperature before finalizing selection.
Safety Standards and Approvals
Certifications and Markings
Trusco builds the totb406na6p to meet UL and IEC requirements, streamlining approvals in regional projects. Documentation such as test reports and material compliance should be reviewed during the procurement stage. Maintain records of these approvals for future audits and maintenance planning.
Operational Reliability and Maintenance
Routine checks of the trusco 300v 15a 6p totb406na6p include visual inspection for discoloration and verifying that the breaker stays properly seated. Scheduled testing under controlled conditions helps identify contact wear before it affects system uptime.
- Confirm voltage and current ratings match your application
- Verify compliance with regional safety standards
- Use correct DIN rail mounting procedures
- Schedule periodic inspection and testing cycles
- Keep manufacturer documentation for traceability
FAQ
Reader questions
Can this breaker be used in a 400 V three-phase panel?
Yes, the 300 V rating is suitable for many 400 V systems when derating and local regulations are considered, but verify site-specific conditions with a qualified engineer.
What is the breaking capacity for short circuit protection?
Refer to the manufacturer datasheet for the exact kiloampere breaking capacity, as it depends on the electrical installation characteristics and upstream protection coordination.
How do I verify correct DIN rail mounting for the totb406na6p?
Use a level and appropriate DIN rail clips, ensure proper torque on mounting screws, and confirm that adjacent components allow adequate airflow for heat dissipation.
Are replacement units readily available from Trusco distributors?
Yes, the totb406na6p is stocked by multiple Trusco distributors, and lead times are typically short, but confirm part numbers and certifications with your local supplier.