Description
This rotary switch features two positions for on and off. When installed in the underwater equipment, it allows you to facilitates circuit waveband switching inside a watertight enclosure without needing to open it. The threaded specification is M10x1, , available in two material options: aluminum and stainless steel. It can withstand pressures at depths of up to 1000 meters. By turning the knob, you can switch two positions for on and off. The on-off positions are equipped with limiting stops, and there is a distinct audible 'click' when the position is reached. Two wires, blue and green, exit from the switch, supporting direct on-off for 0.5A at 24VDC and 0.2A at 48VDC. If you require a switch for high-current circuits, you can connect relay or MOS switch circuits.
The switch knob features clear markings indicating the current position status. The wrench socket of the bulkhead does not extend to the bottom. The retained circular step serves to protect the hatch cover, preventing potential scratches during wrenching procedures. In situations where closely positioned bulkheads limit available workspace, tools like snap ring pliers can be employed to rotate the semi-circular groove on the head, eliminating the need for specialized tools. It is recommended to incorporate washers or anti-slip pads between the nut and the bulkhead to ensure secure fastening and prevent loosening. Avoid using friction-reducing sliding pads, such as gaskets, on the nut. Applying Loctite thread locker to the nut and bulkhead is advised to prevent loosening. Be careful to prevent contact between the thread glue and the gasket or its contact surface.
Shipping List
For each rotary on-off switch, the following items are included for the selected size.
- 1 x Switch
- 1 x O-ring
- 1 x Nut
Specifications
| Item | SKU | Material | Appearance | O-ring Size | O-ring Material | Unit Price(US$) |
|---|---|---|---|---|---|---|
| Stainless Steel Rotary On-Off Switch | 12020202-0002 | 316 Stainless Steel | Original Stainless Steel Color | Ø12 x 1.5 | FKM75 Brown Fluorine Rubber | 38 |
| Aluminum Rotary On-Off Switch | 12020201-0002 | 6061Aluminum | Black Anodized | Ø12 x 1.5 | FKM75 Brown Fluorine Rubber | 17.5 |
| Aluminum Extended Rotary On-Off Switch | 12020201-0003 | 6061Aluminum | Black Anodized | Ø12 x 1.5 | FKM75 Brown Fluorine Rubber | 25 |
Aluminum Rotary On-Off Switch / Stainless Steel Rotary On-Off Switch Dimension:
Aluminum Extended Rotary On-Off Switch Dimension:
| Performance Characteristics | Rotary On-Off Switch |
|---|---|
| Maximum Rated Depth | 1000 meters / 3280 ft |
| Design Lifetime | 3 years or 500 cycles to rated depth / 1500 times of on-off |
| Temperature Rating | -20 ~ 70°C |
| Rotational Operating Force | 400±150g |
| Dielectric Strength | 500VAC（1min） |
| Insulation Resistance | 100MΩ MIN.500VDC |
| Contact Resistance | 100mΩ MAX. |
| Electrical Performance | 0.5A 24VDC；0.2A 48VDC |
| Wire Specification | 24AWG |
| On State | Clockwise to the limit |
| Off State | Counterclockwise to the limit |
| Wire Colors | Green, Blue |
| Wire Length | ≈200mm |
| Recommended Size | Rotary On-Off Switch |
|---|---|
| Recommended Bulkhead Through Hole Size (A) | Ø10.1±0.1 / Threaded |
| Hatch Cover Thickness (B) | 13 |
| Surface Range (C) | 20 |
Guides
FAQ
● After using the switch in murky waters for a while, I sense some resistance while rotating. Is this normal?
Yes, this is normal. Impurities or salt crystals might have entered small crevices. You can alleviate this by soaking the switch in warm water and rotating it several times to dislodge any impurities.
● Can this switch handle high-current power sources?
No, you should employ MOS switches or relays to manage high voltage and high current power sources.
● Will the knob come off during intense vibrations?
No, the knob is equipped with a locking pin mechanism to ensure secure positioning.
● Can you provide an electrical schematic for the switch?
No, it's a physical on-off switch, so it can be simply referred to as a switch.
● Can this switch be used in shallow water or in the air?
Yes, it is suitable for usage in water depths ranging from 0 to 1000 meters, as well as in the air.
● Will forcefully twisting the knob cause damage?
No, it won't, but avoid rotating the knob at excessively high speeds as it can lead to excessive wear or damage.