Kentec Electronics Sigma A-CP - Initiating Device Circuit (IDC) Ratings; Notification Appliance Circuit (NAC)

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Initiating Device Circuit (IDC) Ratings

Condition Rating

Maximum Open Circuit Voltage

21.9 VDC

Maximum Short Circuit Current

65 mA

Maximum Line Impedance

20.3 Ohms

Maximum Number of Detectors

on Zones 1 through 8

Reference Appendix B, Equipment List, Detectors

Detector Compatibility Identifier

on Zones 1 through 8

Reference Appendix B, Equipment List, Detectors

Detector Installation Limits on

Zones 1 through 8

Reference Appendix B, Equipment List, Detectors

The maximum line impedance shown in the IDC Ratings table represents all initiating circuit types on

detection zones of The Sigma A-CP Fire Control Panel.

Notification Appliance Circuit (NAC)

Terminal Rating

NAC 1 ( + ), ( - )

Special Application: 18 to 28 VDC @ 2.5 A continuous

Regulated: 18 to 28 VDC @ 250 mA continuous

Fused: Electronic 2.5 A Supervision: Voltage reversing DC

Short Circuit Threshold: 130 Ohms +/- 20%

Maximum line-voltage-drop: 2 VDC

NAC 2 ( + ), ( - )

Special Application: 18 to 28 VDC @ 2.5 A continuous

Regulated: 18 to 28 VDC @ 250 mA continuous

Fused: Electronic 2.5 A Supervision: Voltage reversing DC

Short Circuit Threshold: 130 Ohms +/- 20%

Maximum line-voltage-drop: 2 VDC

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