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Ningbo Ambest Electronics Co., Ltd.

Heat Detector, 2-Wire 4-Wire Heat Detector, Fire Detector manufacturer / supplier in China, offering Conventional (non-addressable) 2-Wire or 4-Wire Heat Detector, State of The Art Fire Alarm Control System, 1 Loop (6001-01), Big Infrastructure Fire Project Fire Alarm Control System, 2 Loop (6001-02) and so on.

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Supplier Homepage Product Old Products Conventional (non-addressable) 2-Wire or 4-Wire Heat Detector

Conventional (non-addressable) 2-Wire or 4-Wire Heat Detector

FOB Price: US $5.4-5.8 / Piece
Min. Order: 1,000 Pieces
Min. Order FOB Price
1,000 Pieces US $5.4-5.8/ Piece
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Production Capacity: 200, 000 PCS/Month
Transport Package: 10PCS/Box, 10boxes/CTN
Payment Terms: L/C, T/T, D/P, Paypal, Western Union

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Basic Info
  • Model NO.: HNC-310
  • Signal Transmission: Wired Alarm
  • Certification: ISO, UL521, En54-5
  • Sensor Type: Electric Alarm
  • Transmission Mode: Cable
  • Trademark: Numens
  • Origin: Ningbo, China
  • Type: Fire Alarm
  • Working Mode: Active
  • Application: Indoor
  • Working Principle: Electro-Optical Type
  • Usage: Door, Fire, Smoke
  • Specification: UL 521 / EN 54-5 / CE
  • HS Code: 8531100000
Product Description

HNC-310 non-addressable heat detectors are suitable for connection to 2-wire non-addressable fire detection control and indicating equipment, or to addressable fire detection control and indicating equipment that can accept non-addressable type detectors.
An electronic thermistor provides sensitive rate-of-rise operation or fixed-temperature operation when the response threshold value is exceeded.


  • Advanced algorithms provide excellent detection discrimination
  • Durable sensor. No adjustment or replacement required
  • 2-wire models for DC 12 V and DC 24 V operation
  • Dual LEDs for 360° visibility
  • Remote LED output option available
  • 4-wire models available with a N/O alarm relay output
  • 4-wire models available with auto-reset function
  • Connects to zone monitor for use with addressable control and indicating equipment
  • Easy installation. No programming required
  • Sleek low-profile housing design

Conventional (non-addressable) 2-Wire or 4-Wire Heat Detector

Operating voltageDC (10.8 ~ 33) V
Start-up current≤ 100 µA
Start-up time≤ 30 s
Quiescent current40 µA
Sampling time(3 ~ 5) s
Alarm current (max)50 mA
Alarm condition indicatorDual red LEDs
Remote LED output current (max)15 mA
Reset voltage≤ 1 V
Reset time≤ 5 s
Alarm response threshold59 °C static, and rate-of-rise a
Operating temperature(-10 ~ +55)°C
Operating humidity(0 ~ 95)% RH, non-condensing
Dimensions (excluding contacts)Φ 102 mm × 45 mm

Ordering Information
Part Number2-Wire4-WireRemote IndicatorRelay OutputAuto Reset
HNC-310-H2 b----
HNC-310-HL b---
HNC-310-H2-U c----
HNC-310-HL-U c---
a Requires 9-terminal base if remote indicator is installed.
b EN type.
c UL type.

About Numens
Formed in 2010, Numens is an emerging supplier of professional safety products for fire detection and alarm systems. Numens supplies an extensive range of addressable, non-addressable and residential products for life safety and property protection applications. Offering over 150 products and supplying to more than 100 customers around the globe, we are committed to establishing long-term relationships with our customers and suppliers.
Mission and Values
Our mission is to provide building owners with high quality, inexpensive fire detection and related equipment that will protect lives of building occupants and minimize damage to buildings through early detection and warning of a fire emergency.
Our engineers, production and support staff will design, manufacture and deliver products with performance and quality to always delight our customers.
Success in our future depends on the integrity and ethical behaviour of all our employees. We support and nourish our staff to improve and grow as responsible members of a civil society. We take personal responsibility for our actions and respect others with different views, as we continually strive for improvements for our customers, our company and ourselves.
Sales, engineering and production are located in Ningbo, China; just 2 hours south of Shanghai. Our Ningbo site has 10,000 m2 (100,000 ft2) of floor-space. From product concept, electrical and mechanical design, we can provide the solutions to detection needs. Our manufacturing is vertically integrated, with our capabilities including tool-making, plastic injection moulding, SMT manufacturing, and final assembly and test.
You can view our product range on our website or in our product catalogue (document number 34-0001).
Standards and Approvals
Standards approvals are important to us, giving customers additional confidence of the performance and reliability of our products. We are certified to ISO 9001:2008 and our products carry approvals to major European and North American Standards.

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