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Sanjiang Addressable Short Circuit Isolator Module A9057T

Sanjiang Addressable Short Circuit Isolator Module A9057T

The Sanjiang A9057T is a highly reliable short-circuit isolator module designed to protect the integrity of Sanjiang addressable fire alarm systems.

HK$200.00
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Description
【Key Features】
Automatic Fault Recovery: After technicians locate and repair a short circuit, the module automatically detects the restored voltage, releases the isolated section, and reconnects it to the main system without manual resetting.

Zero Address Requirement: Operates entirely in the background to protect the bus. No manual coding is required, and it does not occupy device addresses in fire alarm loops.

Visual Status Indication: Built-in yellow LED indicator flashes during normal polling and remains constantly lit after polling ends, allowing maintenance personnel to visually locate the isolated section.

Global Certification: Fully compliant with EN 54-17 short-circuit isolator standards and certified by LPCB and CPR, ensuring the highest reliability and regulatory compliance.

【Technical Specifications】
Operating Voltage: 24 VDC (loop powered, pulse modulation)
Operating Temperature: -10°C to +55°C (14°F to 131°F)
Relative Humidity: ≤ 95% (non-condensing)
Material and Color: Durable ABS plastic, ivory
Dimensions: 86 mm × 86 mm × 41 mm
Weight: Approx. 122 grams (including base)

【Installation and Application】
The A9057T is designed for indoor use and can be semi-recessed or surface-mounted using standard electrical junction boxes.

System Design Tips: To ensure maximum system reliability, best practices and local fire codes typically require isolator modules to be installed at the boundaries of different fire zones, between floors, or to isolate no more than 20 devices per zone.
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