# ANSI/IEEE Relay coil with capacitor suppression form Canonical URL: https://eloragrid.ai/symbols/ansi-relay-coil-with-capacitor-suppression Publisher: Elora Grid Updated: 2026-10-28 Lookup label: K CAP Drawing use: Schematic Reference families: IEEE / ANSI, Manufacturer ## Symbol convention Convention: IEEE / ANSI Form: Relay with Capacitor Autodesk IEEE Symbol Preview: Relays with Suppression, block HCR1K37. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier. Related representation: [Relay coil with capacitor suppression](https://eloragrid.ai/symbols/relay-coil-with-capacitor-suppression) IEEE-library form of relay coil with capacitor suppression: a relay with a capacitor suppression element includes a documented capacitive network associated with the coil. ## In plain English ### What does ANSI/IEEE Relay coil with capacitor suppression form mean? This reference locates relay coil with capacitor suppression in Autodesk's IEEE-oriented relays with suppression family. A relay with a capacitor suppression element includes a documented capacitive network associated with the coil. Its connection and effect on switching are product-dependent. The public library uses HCR1K37 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 the coil voltage type and suppression configuration before substituting a relay assembly. Capacitor suppression is different from the coil's operating function and from a motor run capacitor. 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 relay coil with capacitor suppression: a relay with a capacitor suppression element includes a documented capacitive network associated with the coil. Capacitor suppression is different from the coil's operating function and from a motor run capacitor. ### 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 — Relays with Suppression](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-538B6A25-1215-4F1B-A824-0181D01BE721.htm) ## What it represents This reference locates relay coil with capacitor suppression in Autodesk's IEEE-oriented relays with suppression family. A relay with a capacitor suppression element includes a documented capacitive network associated with the coil. Its connection and effect on switching are product-dependent. The public library uses HCR1K37 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 the coil voltage type and suppression configuration before substituting a relay assembly. Capacitor suppression is different from the coil's operating function and from a motor run capacitor. 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 the coil voltage type and suppression configuration before substituting a relay assembly. - 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 - Identify capacitor network - State coil rating - Reference approved suppression module ## Important distinction Capacitor suppression is different from the coil's operating function and from a motor run capacitor. ## Facts - Convention evidence: Autodesk IEEE Symbol Preview: Relays with Suppression; published form: Relay with Capacitor. - Public vendor block: HCR1K37. Vendor library token, not an IEEE symbol number. - Drawing role: Relay operation - 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 — Relays with Suppression](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-538B6A25-1215-4F1B-A824-0181D01BE721.htm) — Autodesk. Public IEEE-oriented Relays with Suppression table explicitly lists HCR1K37 as Relay with Capacitor. 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.