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Woodward 8441-1138 Multi-Function Relay Protection Module

Woodward 8441-1138 Multi-Function Relay Protection Module

Product Description

The 8441-1138 is a versatile Multi-Function Relay (MFR) manufactured by Woodward, Inc., designed for comprehensive electrical protection and monitoring in power generation and distribution systems.

It...

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Availability: Low stock: 99 left

SKU: 8441-1138
Vendor: Woodward
Category: Multi-Function Relay Module
Related Series:

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Product Description

The 8441-1138 is a versatile Multi-Function Relay (MFR) manufactured by Woodward, Inc., designed for comprehensive electrical protection and monitoring in power generation and distribution systems.

It continuously monitors critical parameters such as over/undervoltage, over/undercurrent, phase loss, and frequency deviations. By consolidating multiple protection functions into a single module, it reduces panel space, simplifies wiring, and enhances system reliability.

With configurable trip thresholds and time delays, the 8441-1138 enables precise fault management in generator sets, switchboards, and industrial power networks. Its rugged construction supports deployment in harsh environments including marine, industrial, and remote power installations.

Technical Specifications

Parameter Specification
Model 8441-1138
Function Type Multi-Function Relay (MFR)
Protection Functions Overcurrent, Undercurrent, Overvoltage, Undervoltage, Phase Loss, Frequency
Primary Applications Generator protection, mains monitoring, alarm triggering
Supply Voltage 24V DC / 48V DC (variant dependent)
Output Type Multi-channel volt-free (dry) relay contacts
Response Time Adjustable setpoints & delay timers
Operating Temperature –40°C to +70°C
Mounting DIN rail or panel mount

Application

  • Standby power systems (hospital & telecom backup)

  • Generator synchronization panels

  • Marine alternator protection

  • Industrial switchgear and distribution boards

FAQ

50Hz and 60Hz compatible?
Yes. Frequency parameters are software adjustable.

Is response instantaneous?
Processing is high-speed, but delay timers are typically configured to prevent nuisance trips.

Are relay outputs dry contacts?
Yes. Outputs are volt-free (dry) contacts, allowing flexible voltage switching independent of supply voltage.