SRD998-40/20-00056 - FOXBORO - Products - Easy Semiconductor Technology (Hong Kong) Limited 易擇半導體科技(香港)有限公司

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SRD998-40/20-00056

The Foxboro SRD998-40/20-00056 is a failsafe safety relay module designed for SIL 3 safety instrumented systems (SIS) in critical process applications. This configurable relay unit provides redundant switching for emergency shutdown (ESD) and fire & gas systems.

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Key Features
1. Safety Performance
SIL 3 certified (IEC 61508/61511)

Redundant relay contacts: 4 NO + 2 NC (40/20 configuration)

Fault detection time <100ms

Electromechanical latching relays

2. Configuration
40/20: Indicates 4 normally open (NO) + 2 normally closed (NC) contacts

00056: Custom firmware/build variant

LED per-channel status indicators

3. Electrical Ratings
Contact rating: 5A @ 250V AC/30V DC

Dielectric strength: 1500V AC

Operating voltage: 24V DC ±20%

4. Environmental
-40°C to +70°C operating range

Zone 2/Div 2 hazardous area rating

5. Certifications
TÜV Rheinland SIL 3

ATEX/IECEx (II 3G Ex ec IIC T6 Gc)

UL/cUL Class 1 Div 2

Typical Applications
ESD valve actuation

Fire system damper control

Turbine overspeed protection

Burner management systems