N93-586-84 Issue 04 AB Page 26 of 32 © Protec Fire Detection plc 2015
7.0 3500 Technical Specification
General Specification
Ambient Temperature Range -5 to 40 degrees Celsius
Humidity Limit 95% RH (no condensation, or icing)
Environment
Meets IP30 if mounted in a dry position that does not exceed the temperature
and humidity limits given above
Mounting 3 points surface mount or flush (no extra bezel required when flush mounting)
Dimensions 228mm (W) x 345mm (H) x 111mm (D)
Standby Time
72 hours typical
(8 zones loaded with 25 3000PLUS/OP devices, 800mA alarm load for 30
minutes)
Power Supply Specification
Rated Voltage 100 to 240V ac rms
Rated Frequency 50 to 60 Hz
Rated Current 600mA rms
Maximum Inrush Current 20A at 240V from cold
Maximum Quiescent Load (Imax_a)
452mA (22mA panel, 5mA zones, 150mA Aux 24V, 275mA battery charge)
177mA (22mA panel, 5mA zones, 150mA Aux 24V)
Maximum Alarm Load (Imax_b)
1026mA (48mA panel, 28mA zones, 800mA alarm, 150mA Aux 24V)
Note: Batteries are not charged during an alarm condition
Minimum Load, Imin, panel only
22mA panel normal (30 seconds after a mains failure)
48mA panel in alarm (30 seconds after a mains failure)
Mains Input Fuse 1.6A time delay (not user or engineer replaceable)
Standby Battery Requirements
2 x 12V 3.3Ah Sealed Lead Acid (connected in series)
Only use batteries recommended by Protec (see appendix 1)
Output Voltage 24 – 29V dc with mains present , 17 – 29V dc on batteries
Deep Discharge Protection Yes. Less than 150µA drawn from batteries (3500 is turned off)
Deep Discharge Activation Level 18.5V dc battery terminal Voltage
Output Ripple Voltage 400mV maximum (peak to peak) at full output load
Battery Charge Voltage
27.3V at 20 degrees C. Temperature compensated at
– 40mV / deg C. Protected by 1.6A self-resetting thermal 'fuse'
Battery Charge Current 250mA (± 25mA)
Battery Test Load 47Ω (internal to the 3500)
Battery Over Voltage Fault Level 28.5V dc
Battery Under Voltage Fault Level 22V dc
Battery Monitoring Charger dip, battery load and internal impedance
Maximum Battery Resistance (Ri) 2Ω (battery internal resistance + lead and connection resistances)
Note 1
5mA comprises 8 fully loaded zones of Protec 3000PLUS/OP detectors.
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