Product Details
Configured for overcurrent protection in control circuit branches, the Allen-Bradley 1492-SP1C030 (1492-SP1C030 Circuit Breaker) provides direct physical/electrical execution of single-pole circuit interruption under overload and short-circuit conditions.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1492-SP1C030 |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.11 kg |
| Dimensions | Not Specified |
| Operating Temp | Not Specified |
| Power Consumption | Not Applicable |
| Current Rating | 3 A |
| Voltage Rating | 240/415 VAC |
| Interrupt Rating | 10 kA |
Profinet / EtherNet/IP Deterministic Networks
The 1492-SP1C030 employs a C-curve trip characteristic, providing a targeted response to moderate inrush currents while maintaining sensitivity to sustained overloads. In modular automation architectures, effective I/O density scaling relies on coordinating these protective devices with upstream distribution blocks to prevent nuisance tripping across deterministic communication segments. This component does not interface directly with fieldbus networks; however, the mechanical trip mechanism is engineered to ensure high-speed disconnection during fault transients, thereby protecting downstream I/O modules and backplane bus segments from severe current surges.
Frequently Asked Questions
Q: Does this circuit breaker support field-installable accessories?
A: The Bulletin 1492-SP series supports the installation of various accessories, including auxiliary contacts and signal switches, which mount to the side of the breaker to provide status indication to the PLC.
Q: Is this device intended for direct motor protection?
A: No. This device is a supplementary protector and is rated for control circuit protection. It is not designed to serve as a motor branch circuit protector or to provide the thermal overload protection required for motor drives.
Field Installation Guidelines
- Install the breaker onto a standard 35 mm DIN rail; ensure the base latch is fully secured to prevent vibration-induced movement.
- Connect the line-side power supply to the top terminals and load-side wiring to the bottom terminals, verifying consistent wire gauge application.
- Apply correct tightening torque to terminal screws to maintain low-impedance electrical contact and prevent thermal degradation of the connection point.
- Separate secondary control wiring from primary power cabling or variable frequency drive (VFD) output lines to mitigate electromagnetic noise coupling.
- Ensure the surrounding enclosure provides adequate ingress protection and that the device remains clear of conductive dust or debris.
- Verify circuit operation by measuring voltage at the load-side terminals with the device in the "ON" position to confirm functional continuity.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Demystifying the DDE Protocol in Legacy Industrial Automation Systems
Modern control systems rely heavily on seamless interprocess communication to exchange operational data between software programs. Microsoft first introduced the Dynamic Data Exchange (DDE) protocol in 1987 to enable real-time data sharing. In factory automation, DDE served as an early bridge between control software and Windows desktop applications. Therefore, understanding DDE mechanics provides crucial insights into how legacy industrial networks established software-level connectivity.
Demystifying CPU Communication Ports in Siemens PLC Architectures
Industrial automation relies heavily on robust data exchange between devices. Without seamless connectivity, field instruments, network switches, human-machine interfaces, and programmable logic controllers cannot coordinate effectively. Therefore, understanding the various CPU communication ports available in Siemens hardware ensures efficient factory automation design and seamless system integration.
Mastering the Siemens PLC Scan Cycle: How the CPU Executes Automation Programs
Industrial automation relies heavily on programmable logic controllers (PLCs) to manage complex manufacturing processes. Many engineers dive straight into programming without mastering the underlying architecture. However, understanding how a PLC CPU executes a program ensures reliable system design. Therefore, mastering the scan cycle optimizes both performance and troubleshooting in modern control systems.