Mechanical Power Relays MPR
Description
The mechanical power relays are a product group of electro-mechan-
ical high current relays.
These relays have been designed for the use in utility vehicles and
passenger cars and are able to switch or carry up to 300 A continuous
load at 12 or 24 V DC.
The high number of operating cycles at rated load, including
capacitive and inductive loads, make these power relays particularly
suitable for the utility vehicle sector.
The main terminals are stud terminals. Screw flanges allow horizontal
and vertical mounting. Thus these relays can replace any conventional
power relays in the market.
Versions
Technical Data
l
l
l
l
single-pole make contact
bistable
side mount flanges as standard version
extendable mounting with foot flange or side flange with
standard hole sizes and also customised mouting methods
standard: screw terminals for the activation
Load circuit
Rated voltage
UN
12 V DC, 24 V DC
Continuous current IN
100 A, 200 A, 300 A
l
Overload
20 s
1 s
2 × IN
8 × IN
Contact voltage
drop 1)
max. 150 mV
max. 175 mV
(initially)
(after typical life)
Applications
Control circuit
l
l
battery isolation switch or battery switch-over relay
switching of high-capacity loads
(examples: air-conditioning, compressor units)
replacement of massive cylindrical standard automotive relays
Operating voltage
12 V DC:
24 V DC:
9...16 V DC
16...32 V DC
l
Coil power
Pulse duration
General
bistable
< 60 W (50 ms)
50 ms...1 s
Features and Benefits
Typical life 2)
mechanical
resistive
> 100,000 cycles
> 50,000 cycles (300 A)
l
l
l
l
l
l
l
l
l
l
water-proof and dust-proof
side mount and foot mount
low weight
Voltage
resistance
1050 V / 1 min
to ISO 16750-2, Code F
long life span
high continuous current
low current consumption and power loss
wide temperature range
free-wheeling diode optional
overheating protection optional
barrier between main terminals
Insulation
resistance
> 100 MΩ (initially) to ISO 16750-2, Code F
Temperature range -40…+85 °C
Degree of
protection
housing IP 6K9K to ISO 20563
terminal area IP00 to ISO 20653
57,9 m/s2 to ISO 16750-3 Kap. 4.1.2.7
500 m/s2: ON position
300 m/s2: OFF position
to ISO 16750-3 Kap. 4.2.2
5
Vibration
Shock
Approvals
Corrosion
Humidity
5 % salt mist to ISO 16750-4
Cap. 5.5 Code H
Authority
Approval mark Regulation
Rated voltage
KBA
E1 10R-047621 ECE-R 10
24 V
85 % rel. humidity to ISO 16750-4
Cap. 5.7 Code H
Chemical resistance to ISO 16750-5
Oil, hydraulic liquids, alcohol, urea, extinguishing agents, battery
acid, detergents, grease, cold cleaner
meets the requirements to
Flammability
ECE-R 118 02 app. 6.7
Dimensions
w x h x d (without terminals or flanges)
Single pole, bistable 49.6 (62) × 91.3 × 45.8 [mm]
Mass single pole
≤ 290 g
Tightening torque
values
M10 studs 15 Nm
M4 screws 2.0 Nm
M5 side flange 6,0 Nm
M8 studs 12 Nm
1) at rated current
2) typical for a bistable relay
1638
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