UL 541-2020 pdf free download.Refrigerated Vending Machines.
or by a suitable combination of transformer and fixed impedance having output characteristics in compliance with those required for a Class 2 transformer.
5.26 MAXIMUM OPERATING CURRENT (MOC) — The current resulting when an electric motor and adjustable speed drive or drive system are operated under any conditions such as maximum speed/maximum load, maximum speed/minimum load, minimum speed/minimum load, minimum speed/maximum load, including locked-rotor such that current to the motor/adjustable speed drive or drive system is at a maximum,
5.27 MAXIMUM RATED CURRENT (MRC) — The current resulting when a hermetic refrigerant motor- compressor and adjustable speed drive or drive system are operated under any conditions such as maximum speed/maximum load, maximum speed/minimum load, minimum speedlminimum load, minimum speed/maximum load, including locked-rotor such that current to the motor- compressor/adjustable speed drive oc drive system is at a maximum.
5.28 MODULE — A complete, environmentally protected unit consisting of solar cells, optics, and other components, exclusive of a solar tracker mechanism, designed to generate dc power when exposed to sunlight.
5.29 MOTOR CONTROLLER — Any device normally used to start and stop a motor, such as a switch, thermostat, pressure limiting control, or the like.
5.30 NONAUTOMATIC VENDER — A vender which delivers a product by requiring the customer to operate the vending mechanism by moving a lever, knob, bottle, or the like.
5.31 NONFUNCTIONAL PART — A part of the equipment that does not perform a specific function.
5.32 NONFUNCTIONAL PART, SMALL — A nonfunctional part having an area of less than 1 ft2 (0.093 m2) located so it cannot propagate flame from one area to another, and does not connect a possible source of ignition to the other ignitable parts.
5.32.1 POTENTIALLY HAZARDOUS FOOD — A natural or synthetic substance intended for internal human consumption and which requires temperature control since it is capable of supporting growth of toxic microorganisms.
5.33 PROTECTIVE ELECTRONIC CIRCUIT (PEC) — An electronic circuit that prevents a risk of fire, electric shock or injury to persons under abnormal operating conditions.
EC This definition reproduced from IEC 60335-1. Ed. 5.1 b:2013 with permission of the Amencan National Standards Institute (ANSI) on behalf ol the International Electro(echnical Commslon. All rights reserved.
5.34 ROUTE PERSON — The person who regularly opens a vender for such purposes as cleaning, inserting/removing currency or coins, replenishing the product supplied, and making minor adjustments.
5.35 SERVICE PERSON — The person who may periodically open a vender to repair or maintain electrical and mechanical components.
5.36 SOLAR PHOTOVOLTAIC (PV) SYSTEM — The total components and subsystems that, in combination, convert solar energy into electric energy suitable for connection to a load such as a vender.
5.37 STAND-ALONE SYSTEM — A solar photovoltaic system that supplies power independently of an electrical production and distribution network. Such a system is not intended to be connected to an electrical production and distribution network.UL 541 pdf download.