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5461-655 - MicroNet Overvoltage Protection Module is available in stock which ships the same day.
5461-655 - MicroNet Overvoltage Protection Module comes in UNUSED as well as REBUILT condition.
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TECHNICAL SPECIFICATIONS:
Part Number: 5461-655
Manufacturer: Woodward
Series: MicroNet
Module Type: Power / Overvoltage Protection
Protection Voltage: 32 VDC (Nominal Threshold)
Clamping Voltage: 35 VDC
Response Time: < 1 microsecond
Operating Temperature: -30 °C to +65 °C
Storage Temperature: -40 °C to +85 °C
Isolation: 500 Vdc
Availability: In Stock
Origin: United States
FUNCTIONAL DESCRIPTION:
The 5461-655 is a specialized Overvoltage Protection Module designed for the Woodward MicroNet control platform. Its primary role is to act as a high-speed electrical firewall, safeguarding sensitive I/O modules and the system backplane from voltage surges, spikes, and sustained overvoltage conditions. In mission-critical turbine applications, this module ensures that power supply fluctuations do not lead to hardware damage or system instability.
HIGH-SPEED TRANSIENT SUPPRESSION
The MicroNet Overvoltage Protection Module is engineered with advanced clamping circuitry that responds to overvoltage events in less than one microsecond. This near-instantaneous response is critical for protecting the high-speed digital logic and precision analog components within the MicroNet rack. By diverting excess energy away from the internal bus, it maintains the integrity of the control environment during electrical transients or power supply failures.
INTEGRATED SYSTEM SAFEGUARDS
The MicroNet Overvoltage Protection Module provides a layer of diagnostic security for the chassis. It constantly monitors the DC power rails for deviations from the standard operating range. If a sustained overvoltage event occurs that exceeds the safe clamping capacity, the module is designed to trigger protective hardware actions, preventing a ripple effect that could damage multiple modules across the rack.
INDUSTRIAL DURABILITY AND COMPACT DESIGN
The MicroNet Overvoltage Protection Module features a rugged design that resists vibration and thermal stress. Its compact form factor allows it to be easily integrated into the MicroNet chassis without requiring extensive rewiring. The module is a critical component for systems operating in areas with unstable grid power or where high-inductive loads may create significant switching noise.
WHY BUY FROM WOC:
World of Controls supports the reliability of your Woodward infrastructure by providing the 5461-655 in both UNUSED and REBUILT conditions. Each protection module is rigorously tested on specialized power-simulation rigs to ensure that the clamping thresholds and response times meet original manufacturer specifications. Our deep inventory of MicroNet components ensures that you can secure vital protection hardware with minimal lead times. Backed by our global logistics and 24/7 technical support, WOC helps you maintain a secure and resilient control system.
What is the Woodward 5461-655?
The 5461-655 is an Overvoltage Protection Module for the Woodward MicroNet system. It monitors the internal power distribution and clamps excessive voltage to prevent damage to the various I/O and CPU modules installed in the chassis.
How does the MicroNet Overvoltage Protection Module manage thermal dissipation during sustained clamping events?
The module is designed to handle transient spikes through high-speed semiconductor clamping. For sustained overvoltage conditions, the internal circuitry is designed to shunt the energy to the chassis ground. However, since the module is passively cooled, prolonged exposure to high-voltage faults will eventually increase internal thermal stress, making it essential for the primary power source to have its own secondary trip mechanism.
What is the significance of the sub-microsecond response time in this protection module?
High-frequency transients can propagate through a digital backplane before standard mechanical or slow-acting electronic protectors can react. The sub-microsecond response of the MicroNet Overvoltage Protection Module ensures that the peak voltage is suppressed before it can reach the threshold of the sensitive 5V or 3.3V logic gates used in modern MicroNet CPU and I/O cards.
How does the 5461-655 interface with the MicroNet backplane diagnostic bus?
The module typically provides a hardware-level status signal to the backplane. This allows the system executive software to monitor the health of the protection circuit. If the module detects an internal failure of its clamping components or a blown fuse, it can trigger a system-level alarm to notify operators that the rack is no longer protected against surges.
