Monitoring relay MR-ET1P

Technical info

Meassuring circuit data

Functions

monitoring of temperature of the motor winding (max. 6 PTC) 

with fault latch, for temperature sensors DIN 44081,

short circuit monitoring of the thermistor line ,

test function with integrated Test/Reset key

LED indicator

yellow LED, green LED

Measuring circuit

• terminals

T1-T2 or T1-T3

• initial resistance

< 1,5 kΩ

• response value

relay in OFF-position: ≥ 3,6 kΩ

• release value

relay in ON-position: ≤ 1,65 kΩ

• disconnection

short circuit thermistor: yes (T1-T2); no (T1-T3)

Input circuit

Rated voltage U

230 V AC

Rated power consumption

1,3 VA / 1,0 W

Rated frequency

AC: 48...63 Hz

Output circuit 

Number and type of contacts   

1 C/O - changeover

Rated load AC1

5 A / 250 V AC

Max. breaking capacity AC1

1 250 VA (thermal constant current 5 A)

Insulation

 

Rated surge voltage

4 000 V AC

Overvoltage category

III PN-EN 60664-1

Insulation pollution degree

2, if built-in 3 PN-EN 60664-1