GBC-24-2 MACURCO

Product Overview

The Macurco GBC-24-2 is a low-voltage Gas Boiler Controller interface panel factory-configured with two onboard 10A SPDT mechanical control relays. Operating on a 24 VAC/VDC power input, this safety hub functions as an automated emergency shutdown manager designed to immediately break interlock loops and kill boiler operations when toxic or combustible gas levels are breached. The unit manages downstream power distribution and monitoring for up to four Macurco 6-Series standalone gas detectors (such as the CM-6 or GD-6). Housed inside a rugged, impact-resistant polycarbonate NEMA 4X (IP66) enclosure, it provides centralized manual safety resets, audible alarms, and auxiliary notification driving in commercial and industrial mechanical rooms.

Key Features

• Two-Relay Base Configuration: Factory equipped with 2 independent 10A SPDT mechanical power relays, expandable up to 8 total relays using internal snap-in dual-relay cards.
• Low-Voltage Power Footprint: Runs strictly on a 24 VAC or 24 VDC system power feed; does not support direct high-voltage 120 VAC line connections.
• Detector Distribution Loop: Provides integrated wiring terminals to power, monitor, and supervise up to 4 Macurco 6-Series gas detectors in series.
• Weatherproof NEMA 4X Enclosure: Sealed inside an opaque polycarbonate housing rated NEMA 4X (IP66) to protect internal electronics against dust, washdown spray, and heavy moisture.
• Integrated Signaling & Driver: Outfitted with a 90 dBA internal audible buzzer, green (Power) and red (Alarm) status lights, and a dedicated 24 VDC output loop to trigger external horn/strobe combos.
• Manual Latching Reset: Features a front-accessible, heavy-duty push button to manually clear latched sensor loops once environmental gas levels drop below danger thresholds.