Overview
The ABB T1N040TL circuit breaker (part number 1SDA061803R1) is a 3-pole molded case breaker from ABB’s SACE Tmax T1N series. It delivers reliable thermal-magnetic protection in industrial control cabinets and distribution panels. This T1 frame breaker combines compact sizing with durable construction, making it suitable for equipment protection in manufacturing, process control, and facility automation applications.
Key Features
- 40A current rating with 3-pole configuration for three-phase circuits
- Thermal-magnetic trip mechanism with long-time and instantaneous functions
- 600V AC / 347V AC phase-to-neutral rated; 500V DC rated
- T1 frame molded case design for panel mounting
- Non-interchangeable trip unit for service and maintenance standardization
- Feed-thru capability suitable for reverse feed applications
- Line and load side lug terminals included
- UL 489 and CSA C22.2 certified for North American installations
Technical Specifications
| Part Number | T1N040TL / 1SDA061803R1 |
| Manufacturer | ABB |
| Product Series | SACE Tmax T1N |
| Current Rating | 40A |
| Poles | 3-Pole |
| Voltage Rating (AC) | 600V / 347V phase-to-neutral |
| Voltage Rating (DC) | 500V DC |
| Interrupting Capacity | 22 kA @ 480V |
| Trip Type | Thermal-Magnetic (LI – Long-Time and Instantaneous) |
| Frame Size | T1 |
| Mounting | Panel-mount with lug terminals |
| Trip Unit | Non-interchangeable |
| Certifications | UL 489, CSA C22.2 |
| Condition | New in Box |
Typical Applications
The ABB T1N040TL is widely used in:
- Industrial control panels and enclosures
- Motor starter and VFD protection circuits
- Feeder and branch circuit protection in manufacturing facilities
- HVAC and process automation systems
- Power distribution systems rated 480V-600V
- OEM equipment and retrofit installations
Compatibility & Replacements
The T1N040TL is the current-generation 40A unit in ABB’s SACE Tmax T1N series. Its non-interchangeable trip design ensures proper functionality and prevents field substitution errors. When sourcing replacements or equivalent units, verify that the voltage rating, interrupt rating, and mounting style match your application requirements. The 22 kA interrupting capacity at 480V is suitable for most industrial feeder and equipment protection circuits but should be confirmed against your system’s available fault current. For critical applications or when unsure of compatibility, consult an ABB application engineer or qualified controls technician.
