Fully interchangeable with conventional all-night photocells and easily fitted, the part-night SS9 eliminates the need for all time clocks and other real-time devices. In the case of a power failure, the unit recalibrates itself automatically – no attention is needed. The SS9 is available with a standard NEMA base or a conduit mounting. Both versions are available set to GMT part-night switching or with automatic GMT/BST (DLS) switching

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Dimensions and SpecificationDimensions and Specification

SS19SS9 SS9 Conduit
Type One Part One Part
Electronic EM Relay Load Switching YES YES
Supply Voltage 50/60Hz AC 198-264, 50Hz only 198-264, 50Hz only
70 Lux Switch-On Level YES YES
55 Lux Option YES YES
35 Lux Option YES YES
Switching Differential 1:0.5 NEG 1:0.5 NEG
Maximum total load for discharge lighting (eg. HPS, MH) (watts) 500 500
Maximum total load for incandescent lighting (watts) / Maximum VA 1200 1200
Switching Delay In Seconds 10 10
Polycarbonate Enclosure (UV Stabilised) YES YES
Power Consumption (watts) <0.25 <0.25
Sensor Type Photo IC Photo IC
Sensor Drift Negligible Negligible
Fixing NEMA 20mm Conduit
Max Operating Ambient Temp Range (ºC) -20/+80 -20/+80
IP Rating Installed IP65 IP65
VDR Voltage Supression YES YES
Additional Features Part Night / Predictive Transfer Switching Part Night / Predictive Transfer Switching

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