Mitsubishi Electric EW-50A, Installation And Instruction Manual

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WT07936X05
5-1. Items not included
The following items are required to install the EW-50.
Items not included Specifications
Locknuts and bushing Must be suitable for the conduit tube to be used.
Sleeved ring terminal
M3.5 ring terminal (for AC power cables (L/L1, N/L2) and M-NET transmission cables (A, B,
S))
M4 ring terminal (for protective ground wire)
AC power cable/Protective
ground wire
Type: Sheathed cable (should not be lighter than ordinary sheathed cable IEC 60227.)
(designation 60227 IEC 53) *1
Recommended type: VCT, VVF, VVR, or its equivalent
Size: 0.75 to 2 mm² (ø1.0 to ø1.6 mm), AWG 18 to 14
Protective ground wire color: green/yellow
* Use a wire with an appropriate diameter so that the wire can be fixed with the cable tie below the
terminal block. A diameter of 10 mm (25/64 in) is recommended.
Transmission cable
Type: Shielded cable
● CPEVS ø1.2 mm
● CVVS 1.25 to 2 mm²
* CPEVS: PE
*2
insulated PVC
*2
jacketed shielded communication cable
* CVVS: PVC *2 insulated PVC *2 jacketed shielded control cable
Relay (for external input)
Contact rating
Rated voltage: 12 or 24 VDC
Rated current: 10 mA or above
Minimum applied load: DC 1 mA
Relay (for external output)
Operation coil
Rated voltage: 12 or 24 VDC
Power consumption: Max. 0.9 W
Electrical wire for pulse input
Type: Copper wire that is suitable for the terminal block of the EW-50
Size
● Single wire: ø0.65 to ø1.2 mm, AWG 21 to 16
● Twisted wire: 0.75 to 1.25 mm², AWG 18 to 16
Watt-hour meter
Must output dry voltage contact pulse for each unit pulse.
Output pulse type: Semiconductor relay
Pulse width: 100 to 300 ms (Resting interval: Min. 100 ms)
Output pulse unit: 0.1/1.0/10/100 kWh/pulse
* An output pulse unit of 1 kWh/pulse or below is recommended.
LAN cable Category 5 or above straight cable (Max. 100 m (328 ft))
Switching HUB A communication speed of 100 Mbps or faster is recommended.
Overcurrent
breaker (fuse or
circuit breaker)
Fuse
Rated current: 3 A
* When using a fuse, use it in combination with a switch (rated current: 3 A).
Circuit breaker
Type: Bipolar (2P2E)
Rated current: 3 A
Earth leakage breaker
Type: Bipolar (2P2E)
Rated current: 3 A or above
Rated current sensitivity: 30 mA
Operation time: Max. 0.1 sec
PC Refer to the Instruction Book (Integrated Centralized Control Web) for PC requirements.
*1 For the U.S. and Canada: designation NEC (NEPA70) or CEC
*2 PE: Polyethylene, PVC: Polyvinyl chloride
5-2. Items sold separately
Items sold separately Model name Remarks
External input/output adapter PAC-YG10HA-E Required when using the external input/output function
Min. 100 ms
100 to 300 ms