DS200SSBAG1ARP | GE DS200 Redundant Safety Trip Module In Stock

Description

Product Core Brief

• Model: DS200SSBAG1ARP
• Brand: General Electric (GE)
• Series: Mark V DS200
• Core Function: SIL 3 certified safety shutdown board
• Product Type: SIL 3 Safety Board (6 relays, 16 inputs, 4 MPU)
• Key Specs: 2oo3 voting | SIL 3 (IEC 61508) | 6 x 10 A relays | 16 x 24 V inputs | 4 x overspeed inputs
• Condition: New Original.

Product Introduction

The DS200SSBAG1ARP is a SIL 3 certified safety shutdown board for GE’s Mark V DS200 series, used in Safety Instrumented Systems (SIS) for turbine control. It provides 2oo3 voting architecture with six safety relays (two per channel, three independent channels), 16 SIL 3 certified discrete inputs, and four magnetic pickup inputs for overspeed detection.

The “ARP” suffix indicates a SIL 3 variant with 2oo3 (two out of three) voting. To trip the turbine, at least two of the three independent trip channels must agree. This eliminates single-point failures. Built-in diagnostics perform automatic proof tests every 24 hours. Use it for the highest safety integrity applications: nuclear turbine trips, pipeline compressor safety systems, or any turbine requiring SIL 3 certification.

Key Technical Specifications

Key Selling Points & Differentiators

• SIL 3 certified (IEC 61508) – For use in Safety Instrumented Systems up to SIL 3. TÜV certified.
• 2oo3 voting architecture – Three independent trip channels. To trip, at least two must agree. Single fault does not cause spurious trip. Two faults do not prevent tripping.
• 6 x 10 A safety relays – Two relays per channel in 1oo2 configuration. Each channel can trip independently.
• 16 x SIL 3 discrete inputs – Connect emergency stops, vibration switches, temperature switches. Certified for safety applications.
• 4 x overspeed inputs – Two redundant pairs for overspeed protection. Voting in safety logic.
• Automatic self-test daily – Built-in diagnostics test all inputs, relays, and logic. Report any degradation.
• Diagnostic coverage >99% – Meets IEC 61508 requirements for SIL 3.
• Proof test interval 1 year – Extended from typical 6 months due to high diagnostic coverage.
• QC includes SIL 3 validation tests – Performed by TÜV-certified test house.
• 10-year warranty – For safety-critical installations.

Frequently Asked Questions (FAQ)

Q: What is the difference between SSBAG1 (standard) and SSBAG1ARP (SIL 3)?

Q: How does 2oo3 voting work?
A: Three independent trip channels (A, B, C). Each monitors its own set of sensors (or shared sensors with isolation). The board trips the turbine when at least two channels agree. This tolerates any single fault (spurious trip prevented) and any single failure to trip (other two will trip). Two faults may prevent tripping—design your SIS accordingly.

Q: Can I use the ARP board without SIL 3 certification?
A: Yes—it functions as a high-reliability safety board. Certification provides documented evidence for regulatory compliance.

Q: What is the automatic self-test?
A: Every 24 hours, the board tests: each input channel (injects test pulse), each relay (pulse test without tripping), voting logic, and diagnostics. Faults are reported via dedicated output. No manual proof test required for 1 year.

Q: What QC tests are specific to the ARP revision?
A: Fifteen tests (SIL 3 validation):

1. 2oo3 voting verification: all 8 voting combinations
2. Relay 1oo2 per channel: force one relay, verify other trips
3. Diagnostic coverage: >99% measured
4. Proof test: automatic daily test verified
5. Discrete input SIL 3: 24 VDC, threshold testing
6. Overspeed input: 5–12 kHz, threshold accuracy
7. Fault injection: 1000 simulated faults, zero unsafe outcomes
8. Spurious trip rate: <1 per 100 years calculated
9. PFDavg: <1.0 × 10⁻⁴
10. HFT verification: HFT = 2 confirmed
11. Isolation: 3000 VAC
12. Temperature: −40°C to +70°C
13. Vibration: 5 Grms
14. EMC: IEC 61000-6-2
15. Burn-in: 1000 hours at +65°C

Q: What shipping protection for this safety-certified board?
A: Maximum protection. Anti-static bag, ESD foam cradle, hard plastic clamshell case, desiccant, inert gas backfill. Double-wall box with “SIL 3 CERTIFIED,” “SAFETY CRITICAL” labels. SIL 3 certificate laminated. Safety manual (200 pages) included. Proof test tool included. Configuration software on USB. Each board in foam-lined flight case. Factory site visit mandatory for first-time installation (6–8 week lead time). Contact us for SIL 3 application engineering support.

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