Description
The WOODWARD 8402-271 is a heavy-duty industrial analog engine speed control module from Woodward’s premium 8402 series. Professionally engineered for precise speed regulation and stable load control of diesel engines, generator sets, industrial pumps and off-highway machinery, this analog control unit delivers consistent and reliable operational performance under extreme working conditions. Adopting a rugged metal casing and industrial-grade circuit design, it features high control accuracy, strong anti-interference capability and ultra-wide environmental adaptability, serving as a core governance component for industrial power and mechanical drive systems.
WOODWARD 8402-271
Physical Specifications (Dimension & Weight)
Designed with a compact integrated metal shell, the WOODWARD 8402-271 supports standard DIN rail mounting and optional screw mounting, enabling flexible and fast on-site installation. The miniaturized and lightweight structure effectively saves equipment and cabinet space, while the high-strength casing provides outstanding structural stability against long-term industrial vibration and impact.
Overall Dimensions (H × W × D): 95 × 60 × 115 mm (3.74 × 2.36 × 4.53 inches)
Net Weight: 420 g (0.93 lbs), including full metal casing
Mounting Standard: DIN Rail (EN 50022) / Optional M4 screw fixed mounting
Core Electrical & Power Technical Parameters
Equipped with high-stability analog control circuits and optimized power management components, the 8402-271 features low standby power consumption, stable power adaptation and precise signal output. It supports continuous 24/7 industrial operation with excellent power supply tolerance and anti-fluctuation performance.
Rated Power Supply Range: 12–24 VDC industrial adaptive voltage
Maximum Operating Current: 1.2 A
Standby Quiescent Current: 50 mA (ultra-low energy consumption)
Speed Regulation Accuracy: ±0.5% steady-state precision under variable load conditions
Control Signal Mode: Pure analog signal control, no digital bus dependency
Interface & Signal Configuration Parameters
This analog speed controller integrates dedicated industrial signal interfaces, covering speed setting, signal acquisition and actuator drive output. The simplified and professional interface layout avoids redundant wiring, ensuring efficient and stable signal transmission and accurate engine speed adjustment.
Speed Setpoint Input Interface: 0–5V standard analog voltage input
Tachometer Signal Input: Dedicated engine speed detection channel
Fuel Actuator Output: Independent dedicated drive output channel
Signal Compatibility: Supports mainstream industrial analog signal matching
Environmental Adaptability & Certification Parameters
Built for harsh industrial and outdoor working scenarios, the WOODWARD 8402-271 boasts an ultra-wide temperature operating range, excellent dust and moisture resistance, and professional industrial certification, fully adapting to variable extreme environments.
Long-Term Stable Operating Temperature Range: -40°C to +85°C
Industry Compliance Certification: CE (EN 61000-6-3), UL 1950, ISO 16750
Environmental Resistance: Anti-vibration, anti-high temperature, anti-low temperature industrial grade performance
Intelligent Safety Protection Mechanisms
The module is embedded with multiple built-in safety protection functions to effectively prevent equipment damage and system faults caused by abnormal power supply and overheating, ensuring long-term safe and stable operation of engine and generator systems.
Reverse Polarity Protection: Automatically cut off power to avoid circuit damage from wrong wiring
Overtemperature Protection: Built-in temperature monitoring, automatic power-off protection under overheating conditions
Load Overcurrent Protection: Intelligent current limiting to protect internal circuits and rear-end actuators
Product Advantages & Application Scenarios
The WOODWARD 8402-271 features lightweight compact design, high-precision speed regulation, ultra-low standby power consumption and extreme environmental adaptability. Different from digital controllers, its pure analog control mode delivers more stable response and zero signal delay for conventional engine governance, with simpler installation and maintenance procedures. Multiple safety protection designs greatly reduce equipment failure risks and operational maintenance costs.
It is widely applicable to diesel generator set speed control, industrial engine steady-state governance, mechanical pump drive system regulation, and off-road heavy machinery power control. All products undergo strict factory aging testing and precision calibration, equipped with a12-month official warranty, providing reliable and durable quality assurance for industrial power control systems.
