30*11mm Black Body 1NO with Illumination with Terminal (0-I) Marked Red A21 Series Rocker Switch
The A21B1K11 packs an illuminated red rocker into a compact 30×11mm single-pole switch, giving clear on-state confirmation in appliance and OEM builds where panel space is tight. It's priced well below sourcing an original manufacturer part, wires in via spade terminals with no soldering, and ships from our UK stock rather than a long overseas lead time.
Replaces many domestic and commercial equipment On/Off switches.
- Portable appliances
- Lab equipment
- Workshop machinery
- Display fridges
- Catering equipment
Technical Details
Frequently Asked Questions
What's the difference between this and the A14 series?
The A21 is single-pole (SPST) in a smaller 30×11mm cutout, switching only the live conductor. The A14 series is double-pole (DPST) in a larger 30×22mm body — check which your application requires.
Does the illumination need a separate power feed?
No — it runs off the same circuit the switch controls, lighting whenever the switch is in the on position.
Is this suitable for washdown environments?
No — IP20 rated, suited to standard indoor equipment rather than washdown areas.
Can this replace my existing appliance switch, and is it good value?
Likely yes — it's a common replacement across catering, lab, and workshop equipment, priced well below an OEM spare and held in UK stock for fast dispatch. Confirm your existing switch's cutout size (30×11mm) matches before ordering.
Industry Applications
- Catering equipment — pizza ovens, grills, griddles, bain maries, and display fridges
- Lab & workshop equipment — single-pole switching with visual power-on confirmation
- Portable appliances — compact illuminated isolator switching in tight panel spaces