Bosch Smart Home - Zigbee relay dry contact + pulse BMCT-RZ

Bosch Smart Home Intelligent Relay - Multi-Purpose Switching

The Bosch Smart Home Intelligent Relay is the most flexible solution for intelligent switching. Thanks to its potential-free contact, it can control a wide range of electrical devices such as garage doors, pumps, sprinklers, boilers, ventilation systems, sockets, and lighting. Compact and versatile, it is designed for invisible installation behind switches, in junction boxes, or outdoors in a weatherproof enclosure.

Main Functions

• Universal electronic switching via potential-free contact
• Two operating modes:
  • On/Off mode: For direct switching of devices such as sprinklers, boilers, pumps, sockets, or lights
  • Pulse mode: For devices requiring short impulses (garage doors, stairwell lighting)
• Flexible control via button/switch, app, scenarios, automation, or time programs
• Voice assistant support: Amazon Alexa, Google Assistant, Siri
• Repeater function to extend ZigBee signal range within the Smart Home system
• Integrated safety: child lock, overheating protection with automatic shutdown

Technical Data - Bosch Smart Home Relay

• Model: BMCT-RZ
• Device Number: 8750002082
• EAN: 4062321596002
• Type of Protection: IP20
• Protection Class: II
• Device Protection: Thermal protector
• Ambient Temperature: -20°C to +50°C
• Dimensions: 40.5 × 47 × 22 mm
• Weight: 40 g
• Radio Protocol: ZigBee 3.0
• Radio Frequency Band: 2.4 – 2.4835 GHz
• Max. Transmitting Power: 10 mW
• Free-Field Radio Range: < 70 m
• Software Class: A
• Receiver Category: 2
• Supply Voltage: 230 V AC / 50 Hz
• Standby Power Consumption: < 1 W
• Load Capacity:
  • AC: Max. 230 V / 13 A (up to 2990 W)
  • DC: Max. 24 V / 8 A
• Cable Type: Rigid/flexible 0.75 – 2.5 mm²

Installation

• Fits flush-mounted boxes (min. 50 mm depth, 60 mm recommended)
• Can be installed in junction boxes or outdoors (IP66 enclosure required)
• Works with connected wall switches/buttons or without
• Requires permanent 230 V supply with neutral conductor
• Installation only by qualified professionals

Contents

• 1 × Bosch Smart Home BMCT-RZ relay
• 1 × User manual (11 languages)