(Slot C Only)
EIA-232/EIA-485 Port Expansion Card
(Slot E Only)
3 Voltage Inputs / 3 Current Inputs Card
3 Voltage Inputs Card
(Slot Z Only)
4 Current Inputs Card
(Any Slot)
8 Digital Inputs Card
8 Digital Outputs Card
4 Digital Inputs / 4 Digital Outputs Card
8 Analog Inputs Card
4 Analog Inputs / 4 Analog Outputs Card
(Slot D Only)
10 Resistive Thermal device (RTD) Card
RTD Module, 120 or 240 Vac Input Power
Acquire and transmit Resistance Temperature Detector (RTD) thermal data with Best-in-Class electrical noise rejection.
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RTD Module, 120 Vdc Input Power
Satellite-Synchronized Clock
Compact, precision-time device suitable for recloser controls or other enclosures with limited space and a need for high-accuracy timing.
Five-Port Ethernet Switch
Apply to build reliable, safe Ethernet networks.
Data Courier®
Quickly send and retrieve settings, gather reports, and load new firmware on SEL's most popular devices.
Fiber Optics Provide Robust Solutions
Use fiber-optic transceivers and I/O products to improve noise immunity and distance capabilities.
View Fiber-Optic Products
Cybersecurity Solutions
Use cryptographic and communications products to improve your security.
View Secure Communications Products [external site]
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