GE IS230TRLSH1B

Product Parameters

Advantages and Key Features

• Enhanced Relay Contact Rating – The IS230TRLSH1B provides an increased contact rating of 6 A (compared to 5 A on IS230TRLSH1), with 12 A inrush capability, enabling direct control of larger motor starters and solenoid loads.

• Gold‑Plated Overlay Contacts – AgSnO₂ contacts with gold‑plated overlay on the IS230TRLSH1B provide superior corrosion resistance for low‑level switching applications, ensuring reliable performance in corrosive and harsh environments.

• Enhanced Surge Suppression – Improved suppression circuitry with varistor, RC snubber, and flyback diode protects the IS230TRLSH1B contacts from inductive switching transients, extending relay life and ensuring reliable field device operation.

• Enhanced Diagnostics – Individual per‑channel LED indicators for coil status and a common fault LED for coil fault detection (open‑coil detection) on the IS230TRLSH1B enable rapid field troubleshooting without software access.

• Enhanced Isolation – 2000 V coil‑to‑contact isolation provides superior protection for the Mark VIe control system from field‑side faults and voltage transients.

• Extended Temperature Range – Rated for -40°C to +75°C, suitable for extreme environments including arctic and desert installations.

• Gold‑Plated Terminal Contacts – The IS230TRLSH1B features gold‑plated screw‑clamp terminals, providing superior corrosion resistance and reliable connections in harsh industrial environments, particularly in offshore and chemical plant applications.

• Pluggable Terminal Design – 2‑piece pluggable terminal block design simplifies maintenance and module replacement without rewiring.

• Flame‑Retardant Housing – UL 94 V‑0 rated material provides safety in the event of electrical faults.

Application Fields and Use Cases

1. Critical Motor Starter Control

The IS230TRLSH1B provides isolated relay outputs for controlling motor starters in critical turbine auxiliary systems, with enhanced contact rating for reliable actuation in demanding applications.

2. Safety Trip Solenoid Actuation

Provides dry contact outputs for safety trip solenoids with 2000 V isolation, ensuring complete electrical separation between control logic and safety‑critical field devices.

3. Alarm Annunciation

Controls annunciator panels, horns, and strobe lights with gold‑plated contacts ensuring reliable low‑level switching for alarm circuits.

4. Fuel Trip Valve Control

The IS230TRLSH1B provides isolated outputs for fuel trip solenoids with enhanced surge suppression, ensuring reliable operation in critical safety applications.

5. Remote Indication

Controls remote status lamps and panel indicators with per‑channel LED status indication for local verification.

6. Retrofit Projects

The IS230TRLSH1B is the recommended upgrade from the IS230TRLSH1 for applications requiring higher contact rating, enhanced diagnostics, or extended temperature range.

Comparison with Competing Products

Key Differentiators: The IS230TRLSH1B is the most advanced relay output termination board in the GE Mark VIe lineup, offering superior contact rating (6 A), enhanced isolation (2000 V), gold‑plated contacts, integrated fault diagnostics, and an extended temperature range. It provides significantly better performance than the IS230TRLSH1 and offers complete integrated relay functionality (with diagnostics) compared to building relay systems with universal terminal boards. The IS230TRLSH1B is the definitive choice for critical turbine relay output applications requiring the highest reliability and performance.

Selection Suggestions and Precautions

Selection Criteria

• Choose the IS230TRLSH1B for critical relay output applications requiring the highest contact rating (6 A), enhanced isolation (2000 V), and diagnostic features.

• For standard relay output applications, the IS230TRLSH1 may be a cost‑effective alternative.

• For high‑density solid‑state outputs without isolation requirements, consider the IS220PDOAH1A with IS220YDIAS1A.

• Verify the number of relay outputs (8 channels) meets application requirements.

• Ensure the contact rating (6 A, 12 A inrush) is sufficient for connected field loads.

Critical Precautions

1. Load Rating – Ensure field device current does not exceed the IS230TRLSH1B contact rating (6 A continuous, 12 A inrush). For inductive loads, apply appropriate derating (typically 50% of resistive rating).

2. Wiring – Use appropriate wire gauge for the IS230TRLSH1B based on load current. For 6 A loads, use minimum AWG 16 (1.3 mm²). Keep relay output wiring separated from signal wiring.

3. Terminal Connections – Recommended torque: 0.5–0.6 N·m. Gold‑plated terminals are softer than tin‑plated; avoid over‑tightening to prevent thread and contact damage.

4. Surge Suppression – While the IS230TRLSH1B includes enhanced suppression, for very high‑inductance loads (> 10 H), consider additional external suppression to further protect relay contacts.

5. Diagnostic Monitoring – Use the common fault LED on the IS230TRLSH1B to detect coil faults. If the fault LED illuminates, investigate the associated channel for coil open‑circuit or driver issues.

6. Temperature Derating – At ambient temperatures above 60°C, reduce the total current load on the IS230TRLSH1B to maintain relay contact life. Refer to the product manual for derating curves.

7. ESD Handling – Use grounded wrist straps when handling the IS230TRLSH1B to prevent static damage.

8. Relay Life – The IS230TRLSH1B relays are rated for mechanical life > 20 million operations and electrical life > 200,000 operations at rated load. Consider maintenance intervals for high‑cycle applications.

9. Obsolescence – The IS230TRLSH1B is in active production with long‑term support. It is the recommended choice for new Mark VIe relay output installations. Keep spare boards for critical applications.