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Honeywell 21CH28 Roller Plunger Mechanical Switch

The Honeywell 21CH28 roller plunger mechanical switch is a robust and reliable solution for a wide range of industrial applications. Its design incorporates a corrosion-resistant roller guide and lock ring, ensuring longevity and performance in harsh conditions. Sealed to MIL-PRF-8805, this switch provides protection against environmental factors. The switch is designed for easy adjustment and installation, with features like a removable roller guide lock ring and color-coded lead wires for clear identification. It's a dependable choice for applications requiring precise control and durability.

Authorized Distributors
Source:Newark
Part No:21CH28
Stock:39
Inv Date:06-01-2026
Price: Unit price: $549.55
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Source:DigiKey
Part No:21CH28
Stock:0
Inv Date:06-01-2026
Price: Unit price: $775.96
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Part No:21CH28
Stock:2
Inv Date:06-02-2026
Price: Unit price: $712.38
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Part No:21CH28
Stock:10
Inv Date:06-01-2026
Price: Unit price: $767.09
Buy/RFQ:
Part No:21CH28
Stock:19
Inv Date:06-01-2026
Price: Unit price: $1558.04
Buy/RFQ:

Honeywell 21CH28 Roller Plunger Mechanical Switch Specifications:

  • Operating Force: 6-12 LB
  • Overtravel Force: 30 LB MAX
  • Contact Arrangement: SPDT
  • Differential Travel: 0.049 IN
  • Pretravel: 0.020-0.250 MAX
  • Overtravel: 0.020-0.250 MAX
  • Motor Weight: 9.0 OZ MAX
  • Thread: 5/8-24 UNEF
  • Keyway: 4.004 x 0.036
  • Lockwasher Diameter: 0.87 DIA
  • Lockwasher Thickness: 0.22 REF
  • Enclosure: Corrosion Resistant Steel

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Frequently Asked Questions

Where can I buy Honeywell 21CH28?

You can click on the BUY or RFQ button to purchase 21CH28 from an authorized Honeywell distributor.

How do I troubleshoot issues or seek technical support for part 21CH28?

You can download the 21CH28 datasheet or visit the Honeywell website for support.

Who is the manufacturer of 21CH28?

Honeywell

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