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Numens -Â Model SNA-360-SL -intelligent photoelectric smoke detectors
SNA-360-SL analogue addressable photoelectric smoke detectors are microprocessor controlled state-of-the-art detectors suitable for connection to Numens addressable fire detection control and indicating equipment. Up to 125 detectors can be connected to each alarm zone loop. Advanced electronics in conjunction with a photoelectric smoke sensing chamber provides early detection of fire and high immunity against unwanted alarms. The SNA-360-SL analogue addressable detector range provides fire detection and alarm system designers with a premium smoke detector for life safety and property protection applications.· Advanced algorithms provide analogue detection discrimination
· Surface-mount device (SMD) circuit board design
· High immunity against unwanted alarms
· Stable smoke sensing chamber. No adjustment or replacement required
· Sleek low-profile housing design
· Dual LEDs for 360° visibility
· Convenient 2-wire connection
· Easy installation with simple address setting DIP switches
· Available with 125 usable detector address settings per loop when connected to Numens control and indicating equipment
· Optional remote LED output
· Low maintenance
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SNA-360-SL |
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Operating voltage |
DC (17 ~ 28) V |
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Start-up current |
≤ 400 µA |
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Start-up time |
≤ 30 s |
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Quiescent current |
≤ 260 µA |
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Alarm current (max) |
5 mA |
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Sampling time |
≤ 2 s |
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Alarm response threshold |
(0.08 ~ 0.15) dB/m |
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Alarm indicator |
Dual red LEDs |
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Remote LED output current (max) |
2 mA |
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Reset voltage |
≤ 3 V |
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Reset time |
≤ 30 s |
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Usable addresses per alarm loop |
125 |
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Operating temperature |
(-10 ~ +55) °C |
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Operating humidity |
(0 ~ 95) % RH, non-condensing |
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Storage temperature |
(-25 ~ +80) °C |
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Storage humidity |
(0 ~ 98) % RH, non-condensing |
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Dimensions (excluding contacts) |
Φ 102 mm × 34 mm |
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Ingress protection rating |
IP-42 |
SNA-360 smoke detectors have the following compliance.
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EN 54-7 a |
CE |
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SNA-360-S2 |
√ |
√ |
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SNA-360-SL |
√ |
√ |
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a EN 54-7 Fire detection and fire alarm systems. Smoke detectors. Point detectors using scattered light, transmitted light or ionization |
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