Autocall Circuit Protection; Model A2081-9027 Isolated Loop Circuit Protector (ILCP)

UL ULC CSFM Listed Accessories Protection Model A2081 9027 Isolated Loop Circuit Protector ILCP specifically for protection of fire alarm circuits DC power 200 mA maximum Monitor circuits Audio riser circuits Firefighter telephone riser circuits See Application Reference for application details Listed as an Isolated Loop Circuit Protector to UL 497B Protectors for Communications and Fire Alarm Circuits Listed as a Surge Suppressor to ULC S527 Control Units for Fire Alarm For higher current ILCP applications up to 5 A refer to Model on data sheet AC2081 0008 stages of protection include Line to Line protection Line to Earth protection Rugged epoxy encapsulated package transients caused by lightning or by disturbances on high power lines are conditions that require low voltage wiring circuits be adequately protected This protection is most effective when at the location where such circuits leave or enter the building Protection The A2081 9027 Isolated Loop Circuit Protector is designed to protect Autocall Fire Alarm circuits from those transients induced on wire runs that are routed external to the Because of its small package size it can be easily mounted at location that achieves maximum protection 1 Overvoltage Protector Applications Model A2081 9027 for use as an Isolated Loop Circuit Protector which is different from as an Overvoltage Protector For Overvoltage Protector refer to Overvoltage Protector model A2081 9044 which is to UL 864 rated for up to 200 mA and documented on data sheet 2 Operation with other Circuit Types Performance of the ILCP has been quantified for use with other circuit types specific applications where its low resistance is desired Contact your Autocall product supplier for application guidance 1 Operating Specifications Specifications Voltage Rating Voltage Rating Voltage Rating Capacitance Current Rating Resistance Specifications box requirement Rating Rating Leads Lead Instructions 38 VDC 28 VAC RMS 47 V typical 45 VDC 35 VAC RMS 56 V typical 48 VDC 33 VAC RMS 75 V typical typical mA maximum Nanosecond 10 9 Nanosecond 10 9 A 10 x 50 pulse A 8 x 20 pulse A 10 x 50 7 16 in W x 1 3 8 in D x 1 1 16 H 62 mm x 35 mm x 27 mm epoxy encapsulated in 102 mm square box 2 1 8 in mm minimum depth to 120 0 to 49 RH at 30 coded 18 AWG 0.82 mm2 in long 254 mm 14 AWG 10 in long 254 2 Mechanical Specifications Reference Type Panel Riser Riser Series 4010ES Series Points Monitor ZAM Connections Distance and Notes ft 1 km maximum 2 Wire Detectors 50 For Dry Contacts 800 maximum or 3270 ft 1 km whichever is shorter ft 610 m maximum or maximum whichever is 1 Isolated Loop Circuit Protector This product has been approved by the California State Fire Marshal CSFM pursuant to Section 13144.1 of the California Health and Safety Code See CSFM Listing 7300 2269 0567 for allowable and or conditions concerning material presented in this document Additional listings may be applicable contact your local Autocall product supplier for the latest status Rev 9 1 2020 Protection Model A2081 9027 Isolated Loop Circuit Protector ILCP Wiring Requirements alarm system wiring that is run external to the building and is protected by the use of A2081 9027 ILCPs shall be installed in accordance with individual system component s installation instructions including properly grounded twisted and shielded pairs and observance of the following ensure optimized protection the A2081 9027 ILCPs shall be located as close as possible to the point at which the circuits leave or enter the and installed in dedicated metallic electrical boxes Distance is limited to one contiguous property The total maximum wire length is determined by the individual application s allowable limit as specified ILCPs but must not exceed 3270 ft 1 km Wiring must be in a wiring trough that is separate from commercial power distribution wiring Wiring Wiring must be run on poles separate from those supporting any commercial power distribution wiring Wiring shall be run in parallel with the commercial power distribution wiring and be separated by a minimum distance of either 100 ft 30 m or the span between any two adjacent poles of either the system s circuit or the commercial power distribution circuit Conductor grounding conductor shall be 12 AWG 3.31 mm2 with a maximum length of 28 ft 8.5 m run in as straight a line as possible and connected to the grounding electrode system unified earth ground per NFPA 70 the National Electrical Code Connection Reference refer to Installation Instructions 574 803AC for additional information 2 Connection Reference 2020 Johnson Controls All rights reserved All specifications and other information shown were current as of document revision and are subject to change without notice listings may be applicable contact your local Autocall product supplier for the latest status Listings and approvals under Tyco Fire Security GmbH and the names listed in this material are marks and or registered marks Unauthorized use is strictly prohibited NFPA 72 and National Fire Alarm Code are registered of the National Fire Protection Association NFPA Rev 9 1 2020