Autocall Circuit Protection; Model A2081-9028 Isolated Loop Circuit Protector (ILCP)

UL ULC CSFM Listed Accessories Protection Model A2081 9028 Isolated Loop Circuit Protector ILCP Loop Circuit Protector ILCP for up to 5 A of DC or audio Low impedance design minimizes voltage drop For internal or external applications refer to External Wiring Refer to specific panel field wiring diagrams for additional application 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 See below for additional application reference For lower current ILCP applications up to 200 mA refer to Model on data sheet AC2081 0007 is compatible with DC notification appliance circuits NACs Speaker circuit NACs 25 VRMS IDNAC SLCs IDNAC SLCs and TrueAlert SLCs Other circuit types see Note 2 below stages of protection for DC and audio circuits Line to Line Protection Line to Earth protection epoxy encapsulated package transients by lightning or by disturbances on high voltage power lines conditions that require low voltage wiring circuits to be adequately This protection is most effective when placed at the location such circuits leave or enter the building Protection A2081 9028 Isolated Loop Circuit Protector ILCP is designed to Autocall Fire Alarm circuits from those electrical transients on wire runs that are routed external to the building Because its small package size it can be easily mounted at the location that maximum protection 1 Overvoltage Protector Applications A2081 9028 is for use as an Isolated Loop Circuit Protector is different from operation as an Overvoltage Protector For Protector applications refer to Overvoltage Protector model which is listed to UL 864 rated for up to 200 mA and on data sheet AC2081 0016 2 Operation with other Circuit Types of the A2081 9028 ILCP has been quantified for use with circuit types for specific applications where its low resistance is Contact your local Autocall product supplier for application 1 Isolated Loop Circuit Protector Wiring Requirements alarm system wiring that is run external to the building and protected by the use of A2081 9028 ILCPs shall be installed in with the individual system component s installation including properly grounded twisted and shielded pairs observance of the following precautions ensure optimized protection the A2081 9028 ILCPs shall be located 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 is determined by the individual application s allowable limit as with ILCPs but must not exceed 3270 ft 1 km Wiring must be in a wiring trough that is separate from commercial distribution wiring Wiring Wiring must be run on poles separate from those supporting any power distribution wiring Wiring shall be run in parallel with the commercial power wiring and be separated by a minimum distance either 100 ft 30 m or the maximum span between any two poles of either the system s circuit or the commercial distribution circuit Conductor grounding conductor shall be 12 AWG 3.31 mm with a maximum of 28 ft 8.5 m run in as straight a line as possible and connected the building grounding electrode system unified earth ground per 70 the National Electrical Code 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 Rating Rating Rating Current Rating Resistance Inductance Capacitance Time Current Line to Line and Line to Earth Current Shield to Earth SLCs and TrueAlert SLCs box requirement Leads Instructions Protection Model A2081 9028 Isolated Loop Circuit Protector ILCP 1 Operating Specifications VDC 28 VAC RMS VDC 33 VAC RMS A Nanosecond 10 9 line to line and line to earth A 8 x 20 pulse A 10 x 50 2 Application Reference is limited to 1000 ft 305 m with a maximum of two 2 A2081 9028 ILCPs branch 3 Mechanical Specifications 3 8 in W x 2 in D x 1 in H 86 mm x 50 mm x 25 mm encapsulated beige in 102 mm square box 2.125 in 54 mm minimum depth coded 18 AWG 0.82 mm2 8 in long 203 mm Connection Reference refer to Installation Instructions 574 805AC for additional information 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