Datasheet

ESG 5.10

EMR SU21M

EMR SU21N

1-phase voltage monitoring relay

EMR SU21M, SU21N

Functions

ac 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

• ac voltage monitoring in 1-phase mains

• Measuring range 110/230 Vac

• Multifunction

• 2 change-over contacts

Reference data

Selectron

EMR Article no.

SU21M 110 Vac 41230013

SU21N 230 Vac 41230014

(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

110/230 Vac (= Measuring voltage)

100% duration of operation

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-phase voltage monitoring relay EMR SU21M, SU21N • ac voltage monitoring in 1-phase mains • Measuring range 110/230 Vac • Multifunction • 2 change-over contacts EMR SU21M Functions ac 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 Indicators Green LED ON: Yellow LED ON/OFF: Red LED ON/OFF: indication of supply voltage indication of relay output indica