Datasheet

ESG 5.6
1-phase direct-current voltage monitoring relay
EMR SU21I, SU21J, SU21K, SU21L
Functions
dc voltage monitoring in 1-phase mains with adjustable thresholds,
and the following functions (selectable by means of rotary switch)
- Undervoltage monitoring
- Monitoring the window between Min and Max
• dc voltage monitoring in 1-phase mains
• Measuring range 12/24/36/48 Vdc
• Multifunction
• 2 change-over contacts
Reference data
Selectron
®
EMR Article no.
SU21I 12 Vdc 41230009
SU21J 24 Vdc 41230010
SU21K 36 Vdc 41230011
SU21L 48 Vdc 41230012
(Order data see chapter 1)
Indicators
Green LED ON: indication of supply voltage
Yellow LED ON/OFF: indication of relay output
Red LED ON/OFF: indication of failure of the
corresponding threshold
Output relay
2 potential free change-over contacts
Rated voltage: 250 Vac
Switching capacity: 1250 VA (5 A / 250 Vac)
Fusing: 5A fast acting
Connecting voltages
12/24/36/48 Vdc
(= Measuring voltage)
100% duration of operation
EMR SU21I
EMR SU21J
EMR SU21K
EMR SU21L