Wisualarm Hard Wired Interconnected Relay Module
£28.93 (inc VAT: £34.72)
Summary
The DHI-HY-MO3MH Hard Wired Interconnected Relay Module is designed to enable flexible networking with Wisualarm mains powered devices, supporting the interconnection of up to 24 devices within a single system. This versatile relay module provides essential integration capabilities for fire and security installations requiring coordinated alarm signalling across multiple zones or locations.
The relay features a dry contact input capable of receiving alarm outputs from other devices, with the alarm output signal processed in a quarantine state as it operates as a passive signal. With two volt-free contacts providing both normally open and normally closed configurations, the module offers flexible integration options with a robust contact rating of AC 250V at 5A resistive load.
Operating on AC mains power ranging from 100V to 250V, the module is equipped with a built-in rechargeable lithium battery backup to ensure continued operation during mains power failures, providing up to 700 hours of standby operation when fully charged. The compact circular design allows for straightforward wall mounting installation in residential and commercial environments.
Features
- Supports interconnection of up to 24 Wisualarm mains powered devices
- 9V rechargeable lithium battery backup for mains failure protection
- One dry contact input for receiving alarm signals from external devices
- Two volt-free output contacts with NO/NC configuration
- 250V AC, 5A resistive output contact rating for continuous or pulse mode operation
- Wide AC mains power supply range from 100V to 250V
- Battery life of 700 hours without alarm when fully charged
- Low standby power consumption of 20μA
- Operating temperature range from -10°C to +55°C
- Operating humidity up to 95% RH (non-condensing)
- Compact circular design with diameter of 144.4mm and depth of 36.4mm
- Simple wall mount installation
- CE and RCM certified for compliance and safety
- Non-replaceable rechargeable lithium battery ensures reliable backup power
FAQ
How many devices can be interconnected with the DHI-HY-MO3MH relay module?
The relay module supports interconnection of up to 24 Wisualarm mains powered devices, enabling comprehensive alarm signalling across multiple zones or locations within a single installation.
What happens if there is a mains power failure?
The module is equipped with a built-in 9V rechargeable lithium battery backup that automatically provides power during mains failures. When fully charged, the battery provides up to 700 hours of standby operation without alarm activation, ensuring continuous protection.
Is the battery replaceable?
No, the 9V rechargeable lithium battery is non-replaceable and is designed to be recharged automatically when mains power is present, providing long-term reliable backup power throughout the module’s operational life.
What type of alarm signals can the relay module receive?
The relay module features one dry contact input that can receive alarm outputs from other devices. The alarm output signal is processed in a quarantine state as it operates as a passive signal, allowing integration with a wide range of compatible alarm devices.
What are the output contact specifications?
The module provides two volt-free contacts with both normally open (NO) and normally closed (NC) configurations. The contacts are rated for AC 250V at 5A resistive load and can operate in either continuous or pulse mode, offering flexible integration options for various alarm system requirements.
What is the operating temperature range for this module?
The DHI-HY-MO3MH operates reliably in temperatures ranging from -10°C to +55°C (+14°F to +131°F), making it suitable for both indoor and challenging environmental conditions where temperature variations may occur.
How is the relay module installed?
The relay module features a straightforward wall mount installation method. The compact circular design with a diameter of 144.4mm and depth of 36.4mm allows for discreet mounting in residential and commercial settings.
Specifications
Power
- Power Supply: AC 100-250V
- Battery Backup: 9V Lithium rechargeable (non-replaceable)
- Standby Power Consumption: 20μA
- Battery Life: 700 hours without alarm when the battery is fully charged
Input/Output
- Input: 1 dry contact input
- Output: 2 volt free contacts (NO/NC)
- Contact Rating: AC 250V, 5A resistive, Continuous or Pulse mode
Interconnection
- Maximum Number Of Interconnected Units: 24
Environmental
- Operating Temperature: -10°C to +55°C (+14°F to +131°F)
- Operating Humidity: ≤95% RH (non-condensing)
Physical
- Dimensions: Φ144.4mm × 36.4mm (Φ5.69″ × 1.43″)
- Weight: 232 g (Packaging is not included)
Certifications
- Certification: CE, RCM
Downloads
- Datasheet (Adobe PDF)