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Manufacturer Resources
Spec Sheet
Product Specs
- Actuator Color:
- Red
- Legend:
- Blank legend
- Product Category:
- Knob
- Series:
- 10250T
- Used With:
- Selector switch, non-illuminated
- Department:
- Electrical
- Product Type:
- 30.5 mm, Heavy-Duty Watertight/Oiltight
- Product Length:
- 1 IN
- Product Details:
- 30.5 mm, Heavy-Duty Watertight/Oiltight
- Product Height:
- .1 IN
- Product Weight:
- .01 LB
- Product Width:
- 1 IN
B-LINE 10250TKR – Frequently Asked Questions
1) Will the B-Line 10250TKR knob fit a 30.5 mm panel cutout?
Yes. The 10250TKR is part of the 10250T heavy-duty watertight/oiltight line, which uses the standard 30.5 mm mounting hole. The knob itself is the operator handle, so it goes on a 10250T selector switch mounted in that 30.5 mm cutout rather than mounting to the panel directly.
2) What does the 10250TKR knob actually go on, and do I get a switch with it?
It is the red operator knob only, used with a non-illuminated 10250T selector switch. No switch body, contact blocks, or mounting ring come with it. Order those separately if you are building a station from scratch; if you are replacing a broken or missing handle on an existing 10250T selector switch, the knob is all you need.
3) Does the 10250TKR knob come marked with positions like OFF/ON or HAND/AUTO?
No markings. The 10250TKR ships with a blank legend, so any position labeling has to come from a separate legend plate around the operator or from your own panel engraving. If you need the function printed on the knob itself, this is not the part.
4) Will this knob work on an illuminated selector switch?
No. The 10250TKR is specified for non-illuminated selector switches. Illuminated selectors take a translucent lens-type operator handle so the lamp shows through, and a solid red knob will not serve that. For a lighted selector, specify the illuminated operator for the 10250T series instead.
5) I need a red selector knob for a machine safety station. Is this the right color part?
Red is the actuator color on the 10250TKR, which is the usual choice where operators need the control visually flagged, such as a two-position stop or a safety-related mode switch. Colour here is just the knob; the switching function comes from the selector switch body and contact blocks it mounts to.
6) Can I use this knob in a washdown or oily plant environment?
The 10250T family it belongs to is the heavy-duty watertight/oiltight line, which is the range used in food plants, machine tool areas, and wet or oil-splashed enclosures. The seal is made by the switch operator and its gasket at the 30.5 mm hole, so the rating depends on the operator being correctly mounted and torqued, not on the knob itself.
7) Is 10250TKR the exact part number to order for the red knob?
Yes. B-Line 10250TKR is the manufacturer part number for the red, blank-legend knob operator handle in the 10250T series, and it is sold as that single model with no size or finish options to choose.
How fast can I get the B-LINE 10250TKR delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the B-LINE 10250TKR come with a warranty?
Absolutely. The B-LINE 10250TKR is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the B-LINE 10250TKR?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the B-LINE 10250TKR from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.