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Overview Specifications A2081-9028 Loop Circuit Protector Instructions A2081-9028 Isolated Loop Circuit Protectors (ILCP) protect Autocall systems equipment from electrical transients such as those caused by strikes or disturbances on high voltage power lines induced on circuit external to the building. A2081-9028 circuit protectors can be used to protect most Autocall low circuits such as DC Notification Appliance Circuits (NACs) and circuit NACs (25 VRMS) but are not compatible with the following: AC input power RS-232 communication Video signals signals must not exceed the following operating specifications. 1. Operating Specifications Rating Rating Rating Current Rating Resistance Inductance Capacitance Time Current and Current VDC, 28 VAC RMS line-to-line VDC, 28 VAC RMS line-to-ground VDC, 33 VAC RMS Amps than 0.1 Ohms per line per line Nanosecond (10-9) line-to-line and A (8×20 pulse) A (10×50 pulse) this Publication publication discusses the following topics: the Isolated Loop Circuit Protector Page # 2018 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 product listed in this material are marks and/or registered marks. Unauthorized use is strictly prohibited. NFPA 72 and National Fire Alarm Code are registered trademarks of the Fire Protection Association (NFPA). B the Isolated Loop Circuit Protector Guidelines the following guidelines before installing the A2081-9028. UL 497B Listing Requirements. The external wiring must be confined a one-block area containing the building of origin. The wiring must also installed in such a manner that there is no possibility of accidental (by failure of supports or insulation) with electric light or power operating at over 300 V peak-to-ground. Location. For optimal protection, install the A2081-9028 apart from the equipment and as close as practical to the point where the circuit or enters the building. ILCPs must be installed in dedicated, metallic boxes. Separate Conduit. Protected and unprotected equipment must not share same conduit. Wire Type. Fire alarm system wiring that is external to the building and by the use of A2081-9028 ILCPs must use twisted, shielded pairs must be properly grounded. Wiring Distance. Wiring is limited to one contiguous property. The total wire length is determined by the allowable limit of the circuit. circuit can exceed 3270 feet (1 km). Underground Wiring. Wiring must be in a wiring trough that is separate commercial distribution wiring. Overhead Wiring. Keep the following in mind with regard to overhead Wiring must be run on poles separate from those supporting any power wiring. Wiring shall be run in parallel with the commercial power distribution and be separated by a minimum distance of either 100 ft (30 m) the maximum span between any two adjacent poles of either the circuit or the commercial power distribution circuit. Ground. The grounding connector shall be #12 AWG with a maximum of 28 feet (8.5 m). Ground wire must be run in as straight a line as and must be connected to the building grounding electrode system Article 800-40 of NFPA 70, the National Electric Code. 2 the Isolated Loop Circuit Protector, Continued Guidelines Mount the A2081-9028 in a steel box. At least 2 inches (5.08 cm) must the from the conduit. Permissible box sizes are:
Overview Specifications A2081-9028 Loop Circuit Protector Instructions A2081-9028 Isolated Loop Circuit Protectors (ILCP) protect Autocall systems equipment from electrical transients such as those caused by strikes or disturbances on high voltage power lines induced on circuit external to the building. A2081-9028 circuit protectors can be used to protect most Autocall low circuits such as DC Notification Appliance Circuits (NACs) and circuit NACs (25 VRMS) but are not compatible with the following: AC input power RS-232 communication Video signals signals must not exceed the following operating specifications. 1. Operating Specifications Rating Rating Rating Current Rating Resistance Inductance Capacitance Time Current and Current VDC, 28 VAC RMS line-to-line VDC, 28 VAC RMS line-to-ground VDC, 33 VAC RMS Amps than 0.1 Ohms per line per line Nanosecond (10-9) line-to-line and A (8×20 pulse) A (10×50 pulse) this Publication publication discusses the following topics: the Isolated Loop Circuit Protector Page # 2018 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 product listed in this material are marks and/or registered marks. Unauthorized use is strictly prohibited. NFPA 72 and National Fire Alarm Code are registered trademarks of the Fire Protection Association (NFPA). B the Isolated Loop Circuit Protector Guidelines the following guidelines before installing the A2081-9028. UL 497B Listing Requirements. The external wiring must be confined a one-block area containing the building of origin. The wiring must also installed in such a manner that there is no possibility of accidental (by failure of supports or insulation) with electric light or power operating at over 300 V peak-to-ground. Location. For optimal protection, install the A2081-9028 apart from the equipment and as close as practical to the point where the circuit or enters the building. ILCPs must be installed in dedicated, metallic boxes. Separate Conduit. Protected and unprotected equipment must not share same conduit. Wire Type. Fire alarm system wiring that is external to the building and by the use of A2081-9028 ILCPs must use twisted, shielded pairs must be properly grounded. Wiring Distance. Wiring is limited to one contiguous property. The total wire length is determined by the allowable limit of the circuit. circuit can exceed 3270 feet (1 km). Underground Wiring. Wiring must be in a wiring trough that is separate commercial distribution wiring. Overhead Wiring. Keep the following in mind with regard to overhead Wiring must be run on poles separate from those supporting any power wiring. Wiring shall be run in parallel with the commercial power distribution and be separated by a minimum distance of either 100 ft (30 m) the maximum span between any two adjacent poles of either the circuit or the commercial power distribution circuit. Ground. The grounding connector shall be #12 AWG with a maximum of 28 feet (8.5 m). Ground wire must be run in as straight a line as and must be connected to the building grounding electrode system Article 800-40 of NFPA 70, the National Electric Code. 2 the Isolated Loop Circuit Protector, Continued Guidelines Mount the A2081-9028 in a steel box. At least 2 inches (5.08 cm) must the from the conduit. Permissible box sizes are: