BACK-UP POWER UNITS FOR GAS SAFETY SYSTEMS ALI 310 - ALP 1.. - ACC ...
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For supplying 12 V– to gas safety systems in event of mains failure.

Consists of:

•  Stabilized (standby) back-up power unit.

• 1 Weatherproof battery.

STABILIZED (STANDBY) POWER BACK-UP UNITS - AL -

APPLICATION

Stabilized back-up units for keeping batteries charged.

 

				Output
Code		Power VA	Input V ~	V ~	A	Dimensions L x P x H mm	Weight Kg	Data sheet
ALI 310		30	230	13.8	2.25	130 x 100 x 38	0.5	G 350
ALP 114		90	230	13.5	6.75	200 x 260 x 110	6.7
ALP 120		120	230	13.5	9	185 x 290 x 130	8

WEATHERPROOF BATTERIES - ACC -

APPLICATION

Long-life lead-sealed rechargeable batteries. Withstand demanding operating conditions such as overloading and very low discharge. Do not require any maintenance.

 

Code		Power VA	Voltage V ~	Rating A/h	Dimensions   L x P x H mm	Weight Kg	Data sheet
ACC 019		25	12	2.3	178 x 34 x 65	0.9	G 350
ACC 060		77	12	7.0	151 x 64.5 x 97.5	2.5
ACC 150		180	12	17	181 x 76 x 167	6
ACC 240		260	12	24	175 x 166 x 125	8.1
ACC 400		480	12	40	197 x 165 x 170	14

METHOD OF CHOOSING POWER SUPPLY IN RELATION TO SYSTEM TO BE ENERGISED

• Calculate the total power absorbed Pt in VA by the system which has to be energised by adding together all the consumptions of the single components of the system: detectors Pr, sensors Ps (only SRS ...), valves Pv, external alarms Pa. Power consumption by sensors SGC ..., SGR ... must not be added since this is already included in that of the detectors which energise them.

  • Pt = Pr + Ps + Pv +Pa. The power of the power unit must be greater than or equal to Pt.

• By multiplying the power absorbed, Pt, by the number of hours h for which it is necessary to keep the system running efficiently without mains supply, the power effectively necessary, Pe, is obtained.

  • Pe = Pt x h. The power of the battery must not be less than Pe. If a single battery is not sufficient, use two or more batteries in parallel..