MTech MA-1000, Installation & Operation Manual

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52
Specifications
Loop Load Min Nom Max Units
Quiescent Current 300 mA
Sounder Circuits
External PSU Input Voltage 20 24 30 V
External PSU Current Rating 1 A
Sounder Load (Each Channel) 300 mA
End Of Line Resistance
12±5% k

External PSU Monitor Input
End Of Line Resistance 12±5%
k

Fault Input Trigger Resistance 100

Environmental
Operating Temperature -10 +60 °C
Humidity (Non Condensing) 95 %rh
Standards
UL864 9th Edition
Compatibility
Suitable for use with MA-1000 Analog Addressable Fire Panels
Physical
Dimensions 147 x 88 x 57 (mm)
Weight 0.25kg
Ingress Protection IP40
Short Circuit Isolator
This addressable device contains an integral short circuit isolator, which operates between the
– IN
terminal and the
– OUT terminal. The isolator operates in conjunction with Analog Addressable Control Panels when a
low parallel resistance fault of typically 200
Ω is present between the +VE and –VE of the loop wiring.
Short Circuit Isolation Data
(Integral with each device)
Total Loop Resistance for correct
operation of short circuit isolator
50Ω (max)
Continuous Current allowable through
isolator
700mA (max)
Isolator Resistance in closed state
0.13Ω (max)
Leakage Current into direct short
circuit with isolator open
13mA (max)
Parallel Fault Resistance to be seen at
the Control Panel for isolators to open
200Ω (typ)
Appendix 4.5