
Safety monitoring relay 122E
Safety expansion Unit
• Power requirements—the SR121E/122E will accept 24 VAC/DC or 115 VAC
• Outputs— 4 N/O outputs on the SR121E, and 8 N/O outputs on the SR122E, are available to route power to the coils for power contactors; both also have 1 non-safety N/C contact and a semiconductor output for signaling functions
• Expander capability—the SR121E/122E may be used with any other SR Series relay to expand the total available number of N/O outputs to power contactors
See photos for more details