CN1132 - ebm-papst, Auto / Hand / Off IO Module

The CN1132 is an Auto/Hand IO Expansion Module designed for use with the ebm-papst Modbus Monitor & Control Unit (MMCU). It connects to the main Modbus loop via the RS485 fan port and adds external panel-mounted controls, enabling local Auto/Hand override capability at the panel for fan and ventilation systems managed by the MMCU.
Typical applications include AHU control panels, fan array systems, and any ventilation installation where local override control at the panel face is required alongside central Modbus supervision.

Key Specifications

• Supply voltage: 24 VDC nominal (12–57 V) from external PSU, or 24 VAC nominal (20–28 VAC) from external transformer
• Supply current: Max 100 mA
• Enclosure: DIN rail mount, IP20
• Weight: 70 g
• Operating temperature: -20 to +60 °C
• EMC compliance: EN61000-6-3 (emissions), EN61000-6-2 (immunity)
• Safety: EN62368-1
• Dimensions: 42.3 × 53.3 × 99.1 mm (W × D × H)

The CN1132 is part of the ebm-papst MMCU ecosystem. For the full range of ebm-papst fan controls and IO expansion modules, browse our complete ebm-papst product range.