


Product Features:
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Indemar Joystick Push Button, 1 Button, M10 x 1.5, 500mm Cable
Indemar 3546 Knob with 1 Button and Special Hub is a compact and durable handle-mounted electrical control solution designed for use on mobile and industrial machinery. Featuring a single push-button control built into a cylindrical ergonomic handle, it allows operators to activate electrical functions directly from the control lever with simple, responsive operation.
The unit is fitted with an M10 x 1.5 threaded connection with a 34.00mm thread depth, making it suitable for secure installation on compatible joystick levers and machine control assemblies. It is supplied with a 500mm cable (+20 / 0mm tolerance), 0.5mm² black and blue wires with tinned ends, and a multipolar cable for dependable connection in demanding environments.
Technical Specifications
| Specification | Details |
|---|---|
| Product code | 3546 |
| Description | Knob with 1 button and special hub |
| Thread size | M10 x 1.5 |
| Thread depth | 34.00mm |
| Overall height | 170.00mm |
| Max grip diameter | 38.50mm |
| Flange diameter | 50.70mm |
| Insert diameters shown | 24.00mm, 19.00mm, 16.80mm and 11.00mm |
| Cable length | 500mm (+20 / 0mm) |
| Wire specification | Black / blue wires, 0.5mm², with tinned ends |
| Cable type | Multipolar cable |
Microswitch Specifications
| Type | Rated Voltage | Resistive Load (A) | Lamp Load (A) | Inductive Load (A) | Motor Load (A) | Inrush Current |
|---|---|---|---|---|---|---|
| 16A | 250 VAC | 16 | 2 | 10 | 3 | 40 A max. |
| 16A | 8 VDC | 16 | 4 | 10 | 6 | |
| 16A | 30 VDC | 10 | 4 | 10 | 4 | |
| 16A | 125 VDC | 0.6 | 0.1 | 0.6 | 0.1 | |
| 16A | 250 VDC | 0.3 | 0.05 | 0.3 | 0.05 |
Wiring Information
| Wire Number | Wire Colour |
|---|---|
| 1 | Black |
| 2 | Blue |
Common Applications
The Indemar 3546 push-button knob is commonly used where a simple handle-mounted electrical signal is needed, including:
- Agricultural machinery – activating auxiliary electrical or hydraulic functions
- Construction and earthmoving equipment – simple on-handle machine control
- Hydraulic systems – switching solenoid valves and control circuits
- Material handling equipment – improving operator control from the lever
- Industrial machinery – dependable push-button actuation in compact installations
General delivery information
Thank you for visiting and shopping at www.flowfitonline.com. Below are the terms and conditions for the Shipping Policy for Harrier Fluid Power Ltd T/A Flowfit.
Orders are processed and shipped during standard working hours (08:30–17:00 BST), Monday to Friday (excluding Bank Holidays). All orders placed before 4pm Monday to Thursday and 3pm on Friday are processed and despatched on the same business day.
If we are experiencing a high volume of orders, shipments may be delayed by 1–2 days. Please allow additional days in transit for delivery. If there will be a significant delay in shipment of your order, we will contact you via email or telephone.
United Kingdom delivery rates & estimates
| Service | Price | Terms |
|---|---|---|
| FREE Delivery | FREE | Free UK delivery is available for orders over £99.99+ VAT. Delivered by close of business next working day. |
| Express Delivery | £9.99 + VAT | UK Mainland delivery for orders under £99.99 + VAT. Delivered by close of business next working day. |
| Express 9am | £42.95 + VAT | Delivered by 9am next working day. |
| Express 12pm | £20.95 + VAT | Delivered by 12pm next working day. |
| Channel Islands | ||
| Standard Delivery | £20.95 + VAT | Delivery in 2–3 working days. |
| UK Highlands & Isles | ||
| Order value below £99.99 + VAT | £31.95 + VAT | Delivery in 2–3 working days. |
| Order value over £99.99 + VAT | £28.95 + VAT | Delivery in 2–3 working days. |
* Overnight delivery is only available for certain delivery addresses within the United Kingdom. Please contact us beforehand to confirm eligibility.
Email sales@flowfitonline.com or call 01584 876 033.
Collection: Customers are welcome to arrange collection using a courier of their choosing, or collect in person from our depot in Ludlow, Shropshire. Please advise us in advance so we can ensure your order is complete before collection.
International delivery rates & estimates
Shipping charges depend on weight and destination country and are calculated and displayed at checkout. Orders for delivery within the EU typically arrive on a 2–5 day service (depending on the destination). Shipments outside the EU typically arrive on a 3–7 day service (depending on the destination).
Please contact our Sales team for accurate delivery times. If your parcel has not arrived within the expected timeframe, please get in touch. Please ensure the shipping address entered at checkout is correct; we are not responsible for incorrect or undeliverable addresses.
Customs, duties and taxes
Import duties, taxes, and brokerage fees are not included in the product price or shipping and handling costs. These charges are the buyer’s responsibility. You may check with your country’s customs office to determine any additional costs.
By placing an international order (shipping outside the United Kingdom), the buyer is responsible for complying with their country’s laws, regulations, and restrictions. If a product is seized and destroyed by customs, we will not be responsible for losses, products, or shipping refunds.
Shipment confirmation & order tracking
You will receive a Shipment Confirmation email once your order has shipped, containing your tracking number(s). Tracking will be active within 24 hours.
Working closely with top carrier experts
We use some of the top carrier companies in the world, although you can also use your own carrier to collect your order. All deliveries require a signature on delivery. Below are our main carrier companies.

Damages
Harrier Fluid Power Ltd T/A Flowfit is not liable for products damaged or lost during shipping. If you receive your order damaged, please contact us to file a claim. Please save all packaging materials and damaged goods before filing a claim.
Returns policy
Our Return & Refund Policy provides detailed information about options and procedures for returning your order.





