
Rockwell Automation Publication 8720MC-RM001K-EN-P - September 2018
17
Plan and Mount the 8720MC-RPS Installation
Chapter 2
Circuit Breaker/Fuse Selection
The 8720MC-RPS unit does not contain a circuit breaker. Install an adequate
circuit breaker on the AC input power line. When an earth leakage breaker is
used, select a breaker equipped with harmonic suppressor.
Provide the required quantity of circuit breakers with supplemental contact
(CB) for all units connected in parallel. Because supplemental contact of this
circuit breaker does not conform with a load of 5 mA, use a relay with less than
5 mA for connection when a supplemental contact is connected with sequence
input PWR.
Table 3 - Circuit Protection Specifications
Contactor Specifications
To help prevent electrical noise, peripherals of the 8720MC-RPS065 unit such
as magnetic contactors and relays must be provided with adequate surge
suppressor. Use CR filter for AC circuit and inverse-parallel diodes for DC
operation circuit.
The 8720MC-EF190-VB EMC filters, when used with 8720MC-RPS190
units provides the magnetic contactor.
Table 4 - Input Power Contactor Specifications
8720MC-RPS
Cat. No.
Input Voltage
(three-phase) nom
Amp
Rating
Input Power Protection
DC-bus Protection
Fuji Electric Circuit
(1)
Breaker (or equivalent)
Mersen Fuse
Mersen Fuse
8720MC-RPS065BM
324…506V AC
100 A
BW100EAGU-3P100
A070UD30KI100
A130UD70LI100
8720MC-RPS065BS
8720MC-RPS190BM
350 A
BW400SAGU-3P350
A070UD30KI0315
A130UD71LLI0350
8720MC-RPS190BS
(1) Because the supplemental contact of this circuit breaker does not conform with load of 5mA, a relay with less than 5mA should be used for connection when a
supplemental contact is connected with sequence input PWR.
8720MC-RPS
Cat. No.
Allen-Bradley® Contactor
(1)
Cat. No.
(1) Select an adequate operating coil for the magnetic contactor within the range of 100…230V AC depending on the applied
voltage.
Cat. No.
8720MC-RPS065BM
100-C43x10
(2)
(CE marked)
(2) Where x is the voltage suffix code of the operating coil.
SC-N2S (UL listed component)
8720MC-RPS065BS
8720MC-RPS190BM
Included with 8720MC-EF190-VB EMC filter units.
8720MC-RPS190BS