5441-637 - Relay Interface Module

SPECIFICATIONS:

Part Number: 5441-637
Manufacturer: Woodward
Series: 5000
Application Type: Relay Interface
Power Supply Voltage: 12VDC
Relay Rating: 10A at 240VAC
Switching Frequency: Up to 100Hz
Module Type: Industrial Control
Input Current Range: 0 to 20mA
Communication Interface: RS-485
Protection Class: IP65
Output Configuration: 1 SPDT Relay
Operating Temperature Range: -40 Deg C to +70 Deg C
Size: 8.24 cm high x 4.16 cm
Repair: 3-7 days
Availability: In Stock
Weight: 0.8 kg
Country of Origin: United States

FUNCTIONAL DESCRIPTION:

The 5441-637 is a Relay Interface Module manufactured and designed by Woodward as part of the 5000 Series used in Woodward Control Systems. It receives low-level analog or digital control signals, typically 0�20 mA or 4�20 mA, from a controller or automation system and converts them into reliable relay outputs capable of switching higher-power devices. By providing both normally open (NO) and normally closed (NC) contacts, the module enables precise control of various actuators, alarms, and other electrical components. Its robust design ensures consistent operation across a wide range of temperatures and humidity levels, making it suitable for demanding industrial environments such as power generation, turbine control, and process automation, where accurate signal interfacing and dependable load switching are essential for system performance and safety.

KEY FEATURES OF RELAY INTERFACE MODULE:

• Reliable Signal Conversion: The module converts low-level analog or digital control signals (0�20 mA or 4�20 mA) from a controller into relay outputs. This ensures that devices such as actuators, alarms, or motors receive precise and timely switching commands, maintaining accurate process control in industrial systems.
• Flexible Input Options: The 5441-637 accepts multiple input signal ranges, making it compatible with various control systems. Both 0�20 mA and 4�20 mA inputs are supported, allowing seamless integration with older and modern automation systems without requiring additional signal converters.
• Multiple Relay Outputs (NO & NC Contacts): Equipped with both normally open (NO) and normally closed (NC) relay contacts, the module offers versatile switching capabilities. This enables users to design fail-safe circuits or trigger multiple devices from a single input, enhancing system flexibility and safety.
• Compact and Panel-Friendly Design: Its small footprint and standard form factor allow easy mounting on DIN rails or inside industrial control panels. This compact design minimizes space requirements while simplifying wiring and installation in complex control systems.

INSTALLATION:

Mount the module on a standard DIN rail or secure it to a flat panel using mounting brackets. Connect 24 V DC power, ensuring correct polarity. Route analog input signals through shielded twisted-pair cables to minimize electrical noise. Relay outputs must comply with rated current limits and be wired according to system logic (NO or NC). Maintain creepage and clearance distances according to industrial safety standards. Before energizing the module, verify continuity, insulation resistance, and proper isolation to ensure reliable operation under high-temperature, vibration, and humidity conditions.

WOC maintains one of the largest inventories of genuine Woodward control system OEM replacement parts, ensuring fast and reliable availability for all your automation needs. We specialize in sourcing, supplying, and repairing critical components, including unused and fully rebuilt boards, all backed by a comprehensive warranty for peace of mind. Our experienced technical team is available 24/7 to provide expert support, whether you need assistance with part selection, system troubleshooting, or emergency repairs.

At WOC, we understand the importance of minimizing downtime in industrial operations, and our dedicated specialists work closely with you to ensure your Woodward control systems remain fully operational and efficient. For detailed information on pricing, availability, or repair services, please contact our team directly by phone or email to receive prompt, professional guidance tailored to your automation requirements.

FREQUENTLY ASKED QUESTIONS:

What is the primary function of the 5441-637 Relay Interface Module?

The 5441-637 converts low-level analog or digital control signals (0�20 mA or 4�20 mA) into relay outputs, enabling precise switching of electrical loads such as actuators, alarms, or auxiliary devices in industrial control systems.

What input signals are compatible with this module?

It supports standard 0�20 mA and 4�20 mA input signals, making it compatible with a wide range of PLCs, DCS, and turbine control systems.

What is the switching capacity of the relay contacts?

Each relay contact (NO and NC) is rated at 1 A at 24 V DC, suitable for driving low-power actuators, solenoids, alarms, or auxiliary circuits in industrial control systems.

How do I wire the input and output signals?

The input signal (0�20 mA or 4�20 mA) should be connected to the designated terminals using shielded twisted-pair cable. Relay outputs (NO/NC) must be wired according to load requirements and polarity.