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KSK-1A04 reed switches – compact and reliable solutions for precision applications
The miniature KSK-1A04 reed switches are the smallest components in the Standex-Meder range, with a glass part length of just 4 mm and a diameter of 1.5 mm. Despite their small size, they are characterized by high precision and reliability in switching voltages up to 30 VDC and currents up to 0.3 A. These are single-channel, normally open (form A, SPST) switches offering a rated power of 1 to 3 W depending on the model.
These compact switches are used wherever installation space is limited and precise operating conditions and fast response are crucial. They are ideal for sectors such as medical equipment (e.g., sensors in diagnostic devices), measuring equipment (position sensors, presence detection), and general-purpose devices that require minimal dimensions while maintaining stable operating parameters.
KSK-1A04 are the ideal choice for OEM projects, precision electronic modules, and wherever low-voltage and low-current circuits are used and physical contact must be reliable and durable. Individual models in this series are available with different contact actuation values (from 5 to 30 AT), allowing the switch to be adapted to specific operating conditions.
All versions of the KSK-1A04 switches – including KSK-1A04-0510, KSK-1A04-1015, KSK-1A04-1520, KSK-1A04-2025 and KSK-1A04-2530 – are available immediately from ELTRON. As an authorized distributor of Standex-Meder products in Poland, we provide full technical support and fast order fulfillment – also online.
| Item no. | Description | Contact- form | Contact rating | Switching voltage | Switching current | Carry current | Glas- s body length | Pull- In excitation (Reference value) |
| W | V | A | A | MM | AT | |||
| 2110400510 | KSK-1A04-0510 | A - NO | 1 W | 30 V | 0.1 A | 0.3 A | 4.1 MM | 5-10 AT |
| 2110401015 | KSK-1A04-1015 | A - NO | 3 W | 30 V | 0.3 A | 0.5 A | 4.1 MM | 10-15 AT |
| 2110401520 | KSK-1A04-1520 | A - NO | 3 W | 30 V | 0.3 A | 0.5 A | 4.1 MM | 15-20 AT |
| 2110402025 | KSK-1A04-2025 | A - NO | 3 W | 30 V | 0.3 A | 0.5 A | 4.1 MM | 20-25 AT |
| 2110402530 | KSK-1A04-2530 | A - NO | 3 W | 30 V | 0.3 A | 0.5 A | 4.1 MM | 25-30 AT |
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