# ANSI/IEEE Minimum-current monitoring relay form Canonical URL: https://eloragrid.ai/symbols/ansi-minimum-current-monitoring-relay Publisher: Elora Grid Updated: 2026-10-28 Lookup label: I LOW Drawing use: SLD, Schematic Reference families: IEEE / ANSI, Manufacturer ## Symbol convention Convention: IEEE / ANSI Form: Minimum Current Protection Autodesk IEEE Symbol Preview: Current Protection Relays, block HCR1F26. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier. Related representation: [Minimum-current monitoring relay](https://eloragrid.ai/symbols/minimum-current-monitoring-relay) IEEE-library form of minimum-current monitoring relay: a minimum-current relay operates according to a configured low-current condition. ## In plain English ### What does ANSI/IEEE Minimum-current monitoring relay form mean? This reference locates minimum-current monitoring relay in Autodesk's IEEE-oriented current protection relays family. A minimum-current relay operates according to a configured low-current condition. Control drawings must identify whether it supervises an operating load, a permissive or another circuit. The public library uses HCR1F26 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number. ### A simple example Trace the measured quantity or initiating control signal separately from the output contacts. The device tag links the sensing or operating element to the controlled circuit; settings, reset behaviour and the actual terminal arrangement belong in the selected equipment documentation. ### What the drawings help you do Check how the relay handles zero current during intentional shutdown. Low current can be an intentional stopped state; the control logic defines when it is abnormal. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted. ### This particular reference IEEE-library form of minimum-current monitoring relay: a minimum-current relay operates according to a configured low-current condition. Low current can be an intentional stopped state; the control logic defines when it is abnormal. ### Terms - Normally open / normally closed: The contact state in the normal condition defined for the drawing. - Coil: A wound conductor that can produce a magnetic field when energised. - Terminal: An identified point where a conductor connects. Concept diagram: Identify the device and form → Read the connections and state → Check the equipment reference A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram. - [Autodesk IEEE Symbol Preview: Current Protection Relays](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-EC11EC4D-374C-4191-9534-C802D3932711.htm) ## What it represents This reference locates minimum-current monitoring relay in Autodesk's IEEE-oriented current protection relays family. A minimum-current relay operates according to a configured low-current condition. Control drawings must identify whether it supervises an operating load, a permissive or another circuit. The public library uses HCR1F26 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number. Trace the measured quantity or initiating control signal separately from the output contacts. The device tag links the sensing or operating element to the controlled circuit; settings, reset behaviour and the actual terminal arrangement belong in the selected equipment documentation. Check how the relay handles zero current during intentional shutdown. Low current can be an intentional stopped state; the control logic defines when it is abnormal. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted. ## How to read it - Check how the relay handles zero current during intentional shutdown. - The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation. ## Information to show or reference - Name supervised circuit - Reference enable condition - State threshold and delay ## Important distinction Low current can be an intentional stopped state; the control logic defines when it is abnormal. ## Facts - Convention evidence: Autodesk IEEE Symbol Preview: Current Protection Relays; published form: Minimum Current Protection. - Public vendor block: HCR1F26. Vendor library token, not an IEEE symbol number. - Drawing role: Monitoring element - Identifier status: The short label is a functional lookup label, not an assigned IEC or IEEE symbol number. Any separately listed Autodesk code is a verified vendor block name. - Artwork scope: Original educational geometry. Exact standard graphics, product ratings and terminal pinouts are not certified. ## Public references - [Autodesk IEEE Symbol Preview: Current Protection Relays](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-EC11EC4D-374C-4191-9534-C802D3932711.htm) — Autodesk. Public IEEE-oriented Current Protection Relays table explicitly lists HCR1F26 as Minimum Current Protection. This supports the vendor convention context, not reproduction of the publisher graphic. ## Graphic scope Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.