MRE-Relay

Picture MRE Relay

(formerly known as 802-Series)

Relays with 1- 4 form A or form C switches, HI versions available

These relays in plastic casings can be equipped with 1-4 form A switches (dry or mercury wetted) or 1-4 form C switches. Various switch types with long air and creepage paths between coil and switch can be used. Versions with an extremely high insulation resistance of 1014 Ohm achieved through a special epoxy potting compound are also available for special requirements of test systems and precision measuring devices.

Typical Applications

  • Test, measurement and control equipment

Dimensions

Tolerance +/- 0.10mm (0.004 inch)

Dimension Drawing

 

Relay Data

Operating temperature (°C) -20/+70
Storage temperature (°C) -35/+95
Isolation coil / contact min. (kVAC) 2.0
Insulation coil / contact min. (Ohm) 1012 (1014)
Life expectancy Dependent upon load, please refer to factory
Soldering time/temperature max. 5 sec./260 °C
Cleaning Fully sealed

 

Contact Data

Contact type 71 74 79
Contact form A/dry A/dry A/dry
Rated power max. (W) 10 30 25
Switching voltage max. (VDC) 200 200 (250 VAC) 1000
Switching current max. (A) 0.5 1.0 1.0
Carry current (A) 1.0 2.5 2.0
Contact resistance max. (mOhm) 150 120 150
Insulation resistance (Ohm) 1010 1011 1011(1014)
Breakdown voltage min. (VDC) 250 430 2500
Operating time incl. bounce typ. (ms) 0.8 0.5 1.0
Releasing time typ. (ms) 0.2 0.1 0.4
Shock at 11ms max. (g) 150 500 50
Vibration max. (g)
(Hz)
10
10-2000
10
10-2000
50
50-1000

Data at 140% pull-in energization and 20°C. Other switches on request.

Coil Data with contact form 1A (Data at 20°C)

Contact form Switch type Nominal voltage
(VDC)
Coil resistance
+/- 10%
(Ohm)
Pull-in voltage
max.
(VDC)
Drop-out voltage
min.
(VDC)
Nominal power
(mW)
1A 71
74
5 340 3.8 1.0 74
6 340 4.5 1.0 106
12 1300 9.0 2.0 111
24 5000 18.0 3.5 115
79 5 215 3.8 1.0 116
6 215 4.5 1.0 167
12 900 9.0 2.0 160
24 3640 18.0 3.5 158

 

Coil Data with contact form 2A (Data at 20°C)

Contact form Switch type Nominal voltage
(VDC)
Coil resistance
+/- 10%
(Ohm)
Pull-in voltage
max.
(VDC)
Drop-out voltage
min.
(VDC)
Nominal power
(mW)
2A 71
74
5 240 3.8 1.0 104
6 240 4.5 1.0 150
12 890 9.0 2.0 162
24 3300 18.0 3.5 175
79 5 150 3.8 1.0 167
6 150 4.5 1.0 240
12 600 9.0 2.0 240
24 2300 18.0 3.5 250

 

Coil Data with contact form 4A (Data at 20°C)

Contact form Switch type Nominal voltage
(VDC)
Coil resistance
+/- 10%
(Ohm)
Pull-in voltage
max.
(VDC)
Drop-out voltage
min.
(VDC)
Nominal power
(mW)
4A 71
74
5 110 3.8 1.0 227
6 110 4.5 1.0 327
12 480 9.0 2.0 300
24 1900 18.0 3.5 303
79 5 75 3.8 1.0 333
6 75 4.5 1.0 480
12 300 9.0 2.0 480
24 1200 18.0 3.5 480

 

Diagram view from component side (pitch 2.54 mm / 0.1 inch)

1A 2A 4A
Footprint Footprint Footprint

 

Order information

Orderinfo

Example for ordering

MRE 05 – 1A79 – HI

MRE relay, 5V coil voltage, 1 form A switch 79, insulation resistance 1014 Ohm

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