Landis & Gyr LAE10 Series 02 Burner Controller

Landis & Gyr LAE10 Series 02 Burner Controller

The Landis & Gyr LAE10 Series 02 burner controller is an industrial-grade flame safeguard relay engineered for the rigorous supervision and indication of oil flames. Designed for intermittent operation, this plug-in relay integrates a power supply, flame signal amplifier, flame relay, auxiliary relay, and a visual flame indication lamp within a robust plastic enclosure. The LAE10 relies exclusively on selenium photocell detectors (RAR series) to monitor burner status, functioning as a critical safety interlock in marine boilers and industrial combustion plants. To ensure fail-safe hardware operation, safety regulations mandate a controlled shutdown every 24 hours to execute the self-test of the flame supervision circuit.

Model Details

• Model: LAE10 Series 02
• MPN (Manufacturer Part Number): LAE10-02
• Manual / Datasheet: PDF Datasheet 7781 (CC1N7781E) available upon request for OEM integration and wiring schematics.

Key Features

1. Intermittent Safety Cycle: Enforces a mandatory shutdown every 24 hours to test the flame supervision circuit, guaranteeing fail-safe operation.
2. High-Fidelity Signal Processing: Operates safely with a minimum detector current of just 8 µA, capping at a maximum of 25 µA to prevent signal saturation and electrical noise interference.
3. Dual & Multi-Flame Supervision: Capable of supervising main flames or pilot/main flames simultaneously using dual detectors, routing data via a central sequence controller.
4. Modular Plug-in Architecture: Employs a standardized multi-pin plug-in base for rapid hot-swapping during engine room maintenance, minimizing downtime.
5. Visual Status Indication: Features an integrated flame indication lamp directly on the front panel for immediate visual troubleshooting and status confirmation.

Marine & Industrial Applications

• Marine auxiliary boilers and exhaust gas economizer supplementary firing systems.
• Forced draft oil burners requiring intermittent operation.
• Dual-supervision combustion setups monitoring both pilot and main flames.
• Industrial multi-flame supervision plants utilizing manual startup protocols.
• Shipboard incinerators on commercial vessels and offshore rigs.

Part Cross-References

• Siemens LAE10 Series 02
• Landis & Staefa LAE10
• C1082 Flame detector relay (Internal maritime SKU)

Frequently Asked Questions

What is the difference between the LAE10 and LFE10 burner controllers?

The LAE10 is engineered exclusively for oil flame supervision using RAR selenium photocell detectors. In contrast, the LFE10 is designed for both gas and luminous or blue-burning oil flames, relying on UV detectors (QRA series) or flame rectification probes.

Can the Landis & Gyr LAE10 operate continuously without shutdown?

No, the LAE10 Series 02 is designed strictly for intermittent operation. International safety regulations mandate at least one controlled shutdown every 24 hours so the unit can perform an internal self-test of the flame supervision circuitry.

What is the minimum detector current required to prevent lockout?

The flame safeguard requires a minimum detector current of 8 µA at 220-240V AC. If the signal drops below this threshold due to a dirty photocell or wiring degradation, the controller will immediately trigger a burner lockout.

Is the Siemens LAE10 an exact drop-in replacement for the Landis & Gyr model?

Yes. Following Siemens’ acquisition of Landis & Gyr‘s burner control division, the Siemens-branded LAE10 Series 02 is identical in pinout, voltage parameters, and internal architecture to the original Landis & Gyr units, making it a direct 1:1 replacement.