SNC-300 non-addressable photoelectric smoke detectors are
state-of-the-art detectors suitable for connection to 2-wire or
4-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. Advanced
electronics in conjunction with a photoelectric smoke sensing
chamber provide early detection of fire and high immunity against
unwanted alarms. Features: · Photoelectric
smoke sensor · Analogue detection discrimination
· Dual LEDs for 360° visibility
· 2-wire and 4-wire models for DC 12 V
and DC 24 V operation · 4-wire model
for DC 48 V operation · 4-wire models
available with a N/O alarm relay output · 4-wire
models available with auto-reset · 2-wire models
available with remote LED output · Connects to
zone monitor for use with addressable control and indicating
equipment Specification: Operating
voltageDC (12/24/48) VStart-up
current≤ 135 µAStart-up time≤ 30 sQuiescent
current≤ 75 µASampling time(3 ~ 5) sAlarm
indicatorDual red LEDsRemote LED output current
(max)15 mAReset voltage≤ 1 VReset
time≤ 5 sAlarm response
threshold(0.08 ~ 0.15) dB/mAlarm output relaySPST.
N/OOperating temperature(-10 ~ +55) °COperating
humidity(0 ~ 95) % RH, non-condensingDimensions
(excluding
contacts)Φ 102 mm × 45 mmOrdering
Information: Part Number2-wire4-wireRemote IndicatorRelay
OutputAuto-ResetSNC-300-S2 a√----SNC-300-SL a√-√--SNC-300-SR
a-√-√-SNC-300-SRR a-√---SNC-300-SR4-√-√-SNC-300-S2-U
b√----SNC-300-SL-U b√-√--SNC-300-SR-U b-√-√-SNC-300-SA-√--√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.
Capabilities 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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