2016.5
1
Features
1. High current 4 position connector
(Three-phase power source + ground)
Compatible with 50A current 3-position connectors and
cables. (For the relationship between ambient temperature
and current, see the derating curve shown in Fig.2)
2. Easy crimp termination
Crimp contact is user-friendly and the easy-to-assemble
design allows for uniform termination.
3. Uses a standard crimp tool
The crimp contacts can be terminated by using the JIS C
9711-compliant crimp tool.
4. Sequential ground contact
Sequential mating allows the ground contact to mate first.
The ground contact touches the metal shell. (Receptacle)
5. Quick and secure bayonet lock
Easy to operate One-touch Bayonet lock.
6. Waterproof design
IP68 compliant water resistance in mated condition
IP68 : No water intrusion while submerged in 2m water
depth for 14 days in mated condition
7. Safety Standard
TÜV certified
Measurement Condition :
3 contacts connected in series with 8mm
2
wire.
Measurement performed with the plug sealed for
air tightness (waterproofness).
117
0
10
20
30
40
50
60
70
80
90
100
0 10 20 30 40 50 60 70 80 90 100 110 120 130
Current (A)
Derating Curve
Ambient temperature
（℃）
Basic curve
Derating curve
Comment : 50A current rating assumes the
connector is used at maximum of 85℃ ambient
temperature. The actual current used should be
determined individually based on the derating
curve. The derating curve is not guaranteed
and will change dependent on factors such as
the cable used. The values in this diagram are
not guaranteed, but should be used as
reference values. Actual measurement may
vary even when all the measurements are done
under the same conditions.
Mated condition
Fig.1
Fig.2
Waterproof Bayonet Lock Connector for 50A Power Supply
EM-W Series
Apr.1.2017 Copyright 2017 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
