Belimo C-22G-5C CAN Bus Communication Module for 22G Gas Monitor System

The Belimo C-22G-5C is a CAN bus communication module designed for use with Belimo's 22G gas monitor system. It centralizes alarm status and gas concentration data from networked gas monitors, providing system-wide visibility and building management system (BMS) connectivity — all in a compact, cost-effective unit with no relay or analog outputs.

Key Features:

• CAN Bus Communication: Aggregates data from up to 32 daisy-chained 22G gas monitors on a single CAN bus segment
• Audible & Visual Alarms: Three-level alarm system including red LED indicators and audible alert at Alarm Level 3
• LCD Display: Backlit LCD screen showing gas type, gas concentration, and alarm level status
• Standalone or Networked Operation: Supports both standalone use and multi-device daisy-chain wiring configurations
• 24V AC/DC Power: Flexible power input rated at AC 5 VA / DC 3.7 W; nominal voltage AC/DC 24 V (50/60 Hz)
• NEMA 2 / IP44 Enclosure: UL94 5VA housing rated for NEMA 2 / IEC IP44 environments
• No Relays or Analog Outputs: Entry-level module providing CAN bus aggregation without relay switching or analog signal output
• CSA/UL 61010-1 Rated: Meets safety certification standards for gas monitoring equipment
• 5-Year Factory Warranty

Electrical & Communication Specifications:

• Nominal Voltage: AC/DC 24 V, 50/60 Hz
• Power Consumption: AC 5 VA / DC 3.7 W
• Communication: CAN bus
• Max Network Devices: 32 (without repeater)
• Cable Entry: 2 top, 2 bottom, 1 rear — 1/2" EMT
• Communication Cable: 22–24 AWG twisted shielded pair, jacketed, 17 pF/ft or less, 100–120 ohm impedance

The C-22G-5C is the base-level module in the C-22G-5 series, ideal for installations that require centralized CAN bus networking of gas monitors without the need for direct ventilation control via relays or analog outputs. Compatible with Belimo 22G gas monitors including the 22G02-5C, 22G14-5C, 22G0214-5C, 22G15-5C6, and 22G21-5C.