Mains monitoring relays  (22,269 offers of 2,630,961 product items)

Signal relay, Dimensions L x W x H: 10.6 x 5.7 x 9 mm, Temperature range: -40...+85 °C, Connection: THD, Contact material: Ag+Au plated, Contacts: 2 change-over (CO), Pitch: 3.2 mm/2.2 mm, Protecti...

Wi-Fi-operated smart power meter, 1 channel 16 A The smallest power meter in the world for precise power monitoring. Automate your lights or electrical appliances in less than 10 minutes and monito...

Signal relay, Dimensions L x W x H: 20.5 x 10.1 x 11.5 mm, Temperature range: -25...+70 °C, Connection: THD, Contact material: Ag+Au plated, Contacts: 2 change-over (CO), Pitch: 2.54 mm, Protection...

AXIS A9188-VE Network I/O Relay Module comes with AXIS T98A15-VE Surveillance Cabinet making it outdoor-ready, vandal-resistant, and UL294-approved. With its 8 configurable I/Os and relays, the mod...

The CT-ERS.21P is a single-function electronic time relay from the CT-S timer range. It provides an ON-delay (delay on make) function with 10 time ranges from 0.05 s to 300 h. This time relay opera...

Signal relay, Dimensions L x W x H: 15 x 7.4 x 9.9 mm, Temperature range: -40...+70 °C, Connection: THD, Contact material: Ag+Au plated, Contacts: 1 change-over (CO), Pitch: 2.54 mm, Protection rat...

This kit includes everything you need to control four doors. With intelligence on the edge, it can internally handle all tasks related to door access—even if the network is down. Flexible and cost ...

Z-Wave™ 4-digital inputs controller for enhanced actions control​ Manually activate or deactivate any created scene, run synchronized actions, or execute complex trigger scenarios. ​ Replace one of...

Signal relay, Dimensions L x W x H: 20.2 x 10.1 x 8.4 mm, Temperature range: -40...+70 °C, Connection: THD, Contact material: Ag+Au, Contacts: 2 change-over (CO), Pitch: 2.54 mm, Protection rating:...

The CT-MFS.21P is a multifunction electronic time relay from the CT-S timer range. It provides 10 timing functions with 10 time ranges from 0.05 s to 300 h. This time relay operates with a rated co...

Professional DIN rail smart dual cover/shutter controller with power metering capabilities Dual Control, One Solution! Shelly Pro Dual Cover / Shutter PM is a DIN-rail mountable dual-cover smart co...

Three-Phase AC 340 ~ 550V wide range input (Dual phase operation possible) - Width only 110mm - Built-in active PFC function compliance to EN61000-3-2 - High efficiency 94.5% and low power dissipat...

Signal relay, Dimensions L x W x H: 28.9 x 12.5 x 10.2 mm, Temperature range: -40...+65 °C, Manufacturer Article n°: S2L25ULCSAD, Connection: THD, Contact material: Ag+Au plated, Contacts: 2 make c...

The CT-ERS.22S is a single-function electronic time relay from the CT-S timer range. It provides an ON-delay (delay on make) function with 10 time ranges from 0.05 s to 300 h. This time relay opera...

Professional 1-channel DIN rail Z-Wave® smart switch with dry contacts​ Suitable for home and facility automation with remote control. DIN-rail mountable inside a breaker box. Enhanced safety featu...