KB Series

Solid state relay solutions grouped by load voltage for quick engineering selection.
20 Models Industrial Grade • SSR
KB
KB image 2
KB image 3
SSR Engineering Summary
Control Voltage Groups: – 3-32VDC– 4-32VDC
Load Voltage Groups: – 24-280VAC– 24-480VAC
Current Range: 2A – 6A

KB Series Selection Check

Narrow the range by load voltage and current, then confirm control voltage, switching type, and document version.

20 models
Load condition Confirm AC / DC, single-phase / three-phase, load voltage, and maximum load current.
Control signal Match control voltage, control type, and zero-cross, random, or phase-control operation.
Thermal & accessories Review heatsink, fan, and safety cover needs by current, ambient temperature, and mounting style.
Document check Download the datasheet or send application details for KYOTTO model confirmation.
View Documents Confirm With KYOTTO Back to SSR Selection

Engineering Check Before Order

The series page defines the model range. Before purchasing, review thermal design, accessories, document version, and application conditions.

Model selector Use load voltage, control voltage, current, and switching type to narrow the model list. Open Selector
Heatsink review Select heatsinks by SSR current, ambient temperature, and cabinet space. View Heatsinks
Accessory check Confirm safety covers, DIN rail clips, and cooling fans before ordering. View Accessories

Load — 24-280VAC

Part Number Phase Function Control Type Control Voltage Load Type Load Voltage Load Current Switching Docs
Zero Cross 5 Models
Control Type — DC 5
KB20C02A
Single Phase Standard DC 3-32VDC AC 24-280VAC 2A Zero Cross Data
KB20C03A
Single Phase Standard DC 3-32VDC AC 24-280VAC 3A Zero Cross Data
KB20C04A
Single Phase Standard DC 3-32VDC AC 24-280VAC 4A Zero Cross Data
KB20C05A
Single Phase Standard DC 3-32VDC AC 24-280VAC 5A Zero Cross Data
KB20C06A
Single Phase Standard DC 3-32VDC AC 24-280VAC 6A Zero Cross Data
Random Access 5 Models
Control Type — DC 5
KB20R02A
Single Phase Standard DC 3-32VDC AC 24-280VAC 2A Random Access Data
KB20R03A
Single Phase Standard DC 3-32VDC AC 24-280VAC 3A Random Access Data
KB20R04A
Single Phase Standard DC 3-32VDC AC 24-280VAC 4A Random Access Data
KB20R05A
Single Phase Standard DC 3-32VDC AC 24-280VAC 5A Random Access Data
KB20R06A
Single Phase Standard DC 3-32VDC AC 24-280VAC 6A Random Access Data

Load — 24-480VAC

Part Number Phase Function Control Type Control Voltage Load Type Load Voltage Load Current Switching Docs
Zero Cross 5 Models
Control Type — DC 5
KB40C02A
Single Phase Standard DC 4-32VDC AC 24-480VAC 2A Zero Cross Data
KB40C03A
Single Phase Standard DC 4-32VDC AC 24-480VAC 3A Zero Cross Data
KB40C04A
Single Phase Standard DC 4-32VDC AC 24-480VAC 4A Zero Cross Data
KB40C05A
Single Phase Standard DC 4-32VDC AC 24-480VAC 5A Zero Cross Data
KB40C06A
Single Phase Standard DC 4-32VDC AC 24-480VAC 6A Zero Cross Data
Random Access 5 Models
Control Type — DC 5
KB40R02A
Single Phase Standard DC 4-32VDC AC 24-480VAC 2A Random Access Data
KB40R03A
Single Phase Standard DC 4-32VDC AC 24-480VAC 3A Random Access Data
KB40R04A
Single Phase Standard DC 4-32VDC AC 24-480VAC 4A Random Access Data
KB40R05A
Single Phase Standard DC 4-32VDC AC 24-480VAC 5A Random Access Data
KB40R06A
Single Phase Standard DC 4-32VDC AC 24-480VAC 6A Random Access Data