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        Tesla | AX Range Auxiliary Contact Block 1NO plus 1NC | Clip-On Contactor Mount

        The Tesla AX11 is a clip-on auxiliary contact block carrying one normally open and one normally closed contact. The AX11 mounts onto a contactor to add control contacts alongside the main switching poles. It belongs to the Tesla AX range of auxiliary contact blocks and ships individually packed.

        Most contactors leave the factory with a single auxiliary contact, or none at all. A seal-in circuit consumes that contact immediately, leaving nothing for an interlock or a run lamp. The 1NO plus 1NC pairing delivers one contact of each polarity, which covers the two functions a straightforward starter actually requires. Tesla positions this configuration for general purpose interlocking and control rather than complex multi-function circuits.

        The AX11 is the block panel builders reach for on a standard starter, where four contacts would be excess inventory. Clip-on mounting attaches the block by hand, so a control function gets added without disturbing the power circuit. One normally open and one normally closed contact means a run indication and an interlock from a single accessory. Individual packing suits van stock, where a loose block in a bulk carton arrives with the terminals knocked about.

        Features

        • 1NO plus 1NC configuration — one normally open and one normally closed contact, giving two independent control functions from one block.
        • Clip-on contactor mounting — the AX11 clips onto a contactor by hand, with no bracket or separate fixing hardware required.
        • General purpose control duty — Tesla positions this configuration for everyday interlocking and control rather than complex multi-contact circuits.
        • Interlocking function — the normally closed contact wires between contactors so one cannot pull in while the other is energised.
        • Status indication — the normally open contact drives a run lamp, an hour meter or remote indication on a motor starter.
        • PLC feedback — either contact supplies a dry input to a programmable logic controller confirming contactor state.
        • Safety circuit contact — the normally closed contact feeds controlled shutdown and emergency stop arrangements.
        • Individually packed — the AX11 is supplied as a single unit rather than a bulk carton, which suits van and site stock.
        • Tesla AX range — part of a range of auxiliary blocks sharing the same clip-on mounting arrangement.
        • Compact addition — the block occupies the auxiliary position on the contactor rather than additional rail width in the panel.
        • Control circuit duty only — auxiliary contacts serve control and signalling functions, never motor or main load switching.

        Where to use

        • Standard DOL starters — the AX11 covers a seal-in and an interlock on a straightforward direct on line starter build.
        • Contactor interlocking — the normally closed contact keeps two contactors from closing simultaneously on a changeover arrangement.
        • Motor starter indication — run lamps on a starter enclosure door driven from the normally open contact.
        • PLC input feedback — automation panels needing confirmation that the contactor actually pulled in.
        • Emergency stop circuits — controlled shutdown arrangements requiring a normally closed contact in the safety string.
        • Pump and fan panels — duty and standby arrangements where each starter reports status to the control circuit.
        • Switchboard retrofits — the AX11 adds a control function to an installed contactor without replacing the contactor.
        • Hour meter and BMS reporting — run time logging and building management inputs taken from a spare contact.

        The AX11 is an auxiliary contact block for control circuits only, so it must never switch a motor, a heater or any main load. It is a clip-on accessory rather than a standalone device, and requires a compatible contactor to mount onto and operate. Installation and wiring must be carried out by a licensed electrician in accordance with AS/NZS 3000.

        (AX11)

        It provides one normally open and one normally closed contact, giving extra flexibility for interlocking and feedback.

        Yes. It’s commonly used to feed signals into PLCs or automation controllers.

        Yes. It’s ideal for providing auxiliary status indication on motor starter circuits.

        Yes. By providing additional contacts on the same device, it simplifies wiring in control panels.

        Yes. It’s designed for durability in demanding electrical environments.

        100-Day Fuss-Free Returns
        We want you to love what you buy—but if you change your mind, that’s okay too. That’s why Sparky Direct offers a 100-day money-back guarantee.

        • Items must be unused, with all parts, accessories, and original packaging.
        • We can’t accept returns if the product is damaged, incomplete, or not in resalable condition.
        • Proof of purchase is required.
        • Return shipping is the responsibility of the customer. 

        If your item isn’t in its original condition, please contact us before returning it—we might save you time and money.

        All products come with a manufacturer’s or supplier’s warranty

        • Warranty starts from the Invoice Date
        • Some suppliers offer in-home warranties and handle claims directly, so you won’t need to uninstall or return the product. Chat with us to check if your product qualifies.
        • Sparky Direct isn’t responsible for losses caused by product failure.
        • Warranties are void if products aren’t installed by a licensed electrician.

        Damaged or Faulty Goods
        If your order arrives damaged or is faulty, let us know within 24 hours.

        • Sparky Direct will pay for return shipping via an emailed return label.
        • If the fault is confirmed, we will send you a replacement item or provide a refund.

        Contact us via our chat to arrange the return.

        Exclusions
        We can’t accept returns for:

        • Items that have been installed, modified, or used
        • Clearance, End of life, Discontinued, or special order items (unless faulty)
        • All PPE Items
        • Goods returned without original packaging or proof of purchase

        How to Request a Return

        1. Contact our customer service team with your order number.
        2. Confirm it’s eligible under our return or warranty policy.
        3. Pack the item securely and return it using a trackable service.
        4. Once we receive and inspect it, we’ll process your refund or replacement.

        Warranty starts from Invoice Date

        Domestic Use: 1 Year
        Commercial Use: 1 Year
        Warranty Method: Return to Sparky Direct

        These specifications and characteristics outline physical, mechanical, electrical details.

        Brand Tesla
        SKU AX11
        Model # AX11
        Package Weight 0.040kg
        View Datasheet
        TYPE VALUE
        Type Auxiliary Contact
        Brand Tesla
        Contact Configuration 1NO + 1NC

        Electrical and HVAC products sold by Sparky Direct are intended for installation by licensed and appropriately qualified professionals in accordance with applicable Australian Standards and regulatory requirements. Customers are responsible for ensuring that any product purchased, including any related or associated components, is compatible and suitable for their intended installation and application.

        Sparky Direct does not provide installation advice and does not assess product suitability for individual circumstances unless expressly confirmed in writing. Customers must confirm correct product selection, compatibility, compliance, and suitability with a licensed or appropriately qualified professional prior to purchase.

        Tools sold by Sparky Direct must be used safely and in accordance with the manufacturer’s instructions. Customers are responsible for ensuring they have the necessary knowledge and competence to operate any tool purchased. If you are unsure how to safely or correctly use a tool, do not use it and seek guidance from the manufacturer or a suitably qualified professional.

        Nothing in this clause limits or excludes any rights or guarantees available under the Australian Consumer Law.

        For website terms and conditions https://www.sparkydirect.com.au/terms-of-use

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