 
    | •  RN28-A1 •  RN28-A2 •  RN28-A3      •  RN28-B2 •  RN28-B3          |  | 
| Part Number | Mounting Hold Size | Switch Rating | Switch Combination | Operation Types | Head Shape | Enclosure Material | Degree of protection | Lamp Type | Download | 
|---|---|---|---|---|---|---|---|---|---|
| RD28-A1 | φ28mm | 5A/250VAC | 1NO 1NC/2NO 2NC | Resetable Self-locking | Flat | Nickel plated brass/Stainless stell | IP67,IK10 | Ring Illuminated | NULL | 
| RD28-A2 | φ28mm | 5A/250VAC | 1NO 1NC/2NO 2NC | Resetable Self-locking | Flat | Nickel plated brass/Stainless stell | IP67,IK10 | Dot Illuminated | NULL | 
| RD28-A3 | φ28mm | 5A/250VAC | 1NO 1NC/2NO 2NC | Resetable Self-locking | Flat | Nickel plated brass/Stainless stell | IP67,IK10 | Character Illuminated | NULL | 
| RD28-B2 | φ28mm | 5A/250VAC | 1NO 1NC/2NO 2NC | Resetable Self-locking | Round | Nickel plated brass/Stainless stell | IP67,IK10 | / | NULL | 
| RD28-B3 | φ28mm | 5A/250VAC | 1NO 1NC/2NO 2NC | Resetable Self-locking | High Flat | Nickel plated brass/Stainless stell | IP67,IK10 | / | NULL |