Solid State Relay with LED Single Phase SSR-40A

These solid state relays are available in Single Phase version. The units are very complete, they include a plastic cover for isolation, but also have a LED status indicator. The relays work directly with TTL and are opticly isolated, so can be connect to EdingCNC/USBCNC/PLC or other software interfaces. Overall a very nice product for a good price. When selecting a current rating take into account that a heatsink is required, if you want to use the listed/rated current. We often oversize the relay by at least 50%, so that heat is less of an issue. When no heatsink is used we advise to use this 40Amp relay with maximum 10amps.

Component features:

• Rated Amps: 40A (with heatsink)
• Rated Amps: 10A (without heatsink)
• TTL Compatible (5VDC)
• HTL Compatible (24VDC)
• Control Voltage 3 ~ 32V DC
• Control Current 6 ~ 25 mA
• Opticly Isolated
• LED Status Indicator
• Load Voltage 24 ~ 660V AC
• On/Off time 100ms
• Frequency Range 47/63 Hertz
• CAUTION when testing SSR: in normal condition, AC SSR ha a leak current about 0.5~2mA, therefore, when SSR input terminals without control voltage , to measure output terminals by voltage meter, meter still displays a voltage. Correct testing method is to connect a lamp (minimal)15W, and the connect the voltage meter to the lamp.