Rocker Switch with Protective Cover

Overview

The JDK-901 is the everyday rocker switch for a cab dashboard — a paddle the driver presses to operate a function, with a hinged protective cover that guards the actuator. The legend sits on a separate legend cap, not on the protective cover. It is a 24 V part (18–32 VDC), holds a −30 to +85 °C working range (−40 to +90 °C in storage) and is rated IP53 for a dashboard position. The paddle rocks through a defined 15° and the switch is rated for more than 50,000 operations. The body and base are moulded in glass-filled PA66-GF15, the paddle in ABS, and the protective cover and legend cap in PC.

What makes it useful on a build is that it is designed to be configured rather than fixed. Multiple JDK-901 switches gang together into a single instrument-panel cluster, the position wiring diagram is adjusted per requirement, and both the legend (the printed symbol / text) and the legend-cap colour are customizable — so one switch body serves many dashboard functions across a vehicle range.

Terminals & mating harness

The switch base carries eight copper blade terminals, with the base moulding marked 2 / 4 / 6 / 8. Youlai lists two compatible mating harness boots, so the same switch drops onto either an 8-wire or a 2-wire loom:

Because the position wiring diagram is adjustable per requirement, the exact terminal-to-function assignment and the contact arrangement are defined against your circuit and confirmed on the release drawing at RFQ. Tell us the function the switch controls and the harness boot you prefer, and we confirm the wiring plan and the contact rating for your build.

Configurable dashboard cluster

The JDK-901 is meant to be repeated. Several switches sit side by side in one panel opening to form a tidy multi-switch cluster, so a cab can present a row of matching rockers for lights, auxiliaries, PTO and other cab functions. The legend on each switch is customizable, so every position reads clearly, and the legend-cap colour can be changed to code a function or match the cab trim. Send the panel layout and the function list with your RFQ and we set the legends and the cluster arrangement.

Feel, sealing & durability

A dashboard rocker is pressed thousands of times over a vehicle’s life, so the JDK-901 is specified for service life and a dashboard environment. It is rated for more than 50,000 operations with a defined 15° throw, and it is rated IP53 — dust-protected and protected against spraying water at an angle, which suits an in-cab dashboard position rather than an exposed or wash-down location. It holds the −30 to +85 °C working range of a cab-interior part, with storage to −40 to +90 °C. The protective cover keeps the paddle and legend guarded in daily use.

How it compares with the JDK-2201

Both are Youlai panel switches, but they answer different needs:

Choose the JDK-901 when you want a configurable row of dashboard rockers with matching legends inside the cab; choose the JDK-2201 when you need a rugged, higher-sealed selector that carries the circuit current itself on an exposed panel. The JDK-901’s own contact rating is confirmed per programme against your circuit.

Where it fits

The JDK-901 belongs to the Switches & Sensors family of cab panel hardware. It sits alongside the other dashboard controls — for a lit self-reset button and a threaded pre-ignition switch see the TDK-2513 / 2514 cab switches; for a sealed exposed-panel selector see the JDK-2201 toggle; and where the cab needs mains-style AC power see the in-cab AC power outlets. Each is an operator input or panel part that wires into the vehicle’s circuits per your wiring plan.

Manufacturing & testing

Built under IATF 16949 with APQP project planning and a PPAP package available for OEM programmes. End-of-line testing follows the programme’s control plan — typically switch continuity and actuation — while endurance, temperature soak and sealing are validated on a sample basis in our in-house lab when a programme calls for fresh qualification.

Common questions from buyers

What is the JDK-901? It is a dashboard rocker switch with a protective cover for 24 V commercial vehicles and machinery — 18–32 VDC, IP53, 15° actuation, more than 50,000 operations — designed to gang into a multi-switch panel with customizable legends.

Can I fit several in one panel? Yes. The JDK-901 is designed to gang side by side into a single instrument-panel cluster; send the panel layout and function list and we set the arrangement and legends.

How is it wired? The base carries eight copper blade terminals (marked 2/4/6/8) and mates to either the 8-wire boot DJ7086-6.3-21 or the 2-wire boot THB15213. The position wiring diagram — which contacts switch — is set against your circuit on the release drawing.

Can the legend and colour be changed? Yes — both the printed legend and the legend-cap colour are customizable, so each switch reads clearly and can be colour-coded. Send the artwork and function list with your RFQ.

How much current can it switch? The published data gives the voltage, IP rating, temperature, actuation and endurance; the contact rating is confirmed per programme against your circuit. For a switch that carries a higher current directly on an exposed panel, see the JDK-2201.

How to ask

The JDK-901 belongs to the Switches & Sensors family. Tell us the function the switch controls, how many switches you need in the cluster, the harness boot you prefer (8-wire or 2-wire), the contact arrangement you need, and the legend artwork — and we confirm the wiring plan, the legends and the cluster layout. Use the contact page; drawings welcome.