KSK-1A55 Series Reed Switch
The KSK-1A55 Series is a high-power reed switch designed for reliable switching in demanding environments. With a glass body length of 16.5 mm and diameter of 2.8 mm, this SPST-NO (Form A) switch supports switching voltages up to 100 VDC and currents up to 0.5 A, with a rated power of 50 W.
Its hermetically sealed construction ensures long-term durability and consistent performance, while a wide operate range (15–60 AT) provides flexibility for various magnetic actuation conditions. The KSK-1A55 is ideal for general-purpose, test and measurement, and high-power applications.
Standards and Certifications
- Compact and rugged design for space-constrained and industrial environments
- Hermetically sealed contacts protect against moisture, dust, and contaminants
- Flat lead configuration enables secure mounting and automated assembly
- No power required for actuation, supporting energy-efficient systems
- Fast and reliable switching for precision control
- Wide operate range options for flexible magnetic sensitivity tuning
| Overall Length mm (inches) | 43.9 (1.728) |
| Glass Length Max. mm (inches) | 16.5 (0.649) |
| Glass Dia. Max. mm (inches) | 2.80 (0.110) |
| Lead Dia. mm (inches) | 0.6 (0.023) |
| Contact Form | 1A (SPST) Normally Open (N.O.) |
| Pull-In Range | 15-60 AT |
| Rated Power Max. | 50W/100VDC/0.5 Amp DC |
- Test and measurement equipment (ATE)
- General-purpose switching in industrial systems
- Relay and solenoid control circuits
- Security and alarm systems
- Medical devices requiring isolated switching
- Power monitoring and metering devices