Marconi MZ12CAB Lorain Modular Power System 588240300. The Lorain MZ12CAB modular power system is the flexible power solution for -48 VDC applications requiring 6 or 12 amp power. Each rectifier cabinet will accept two 6 amp rectifier circuit cards. These rectifier cards are added or removed without complicated and costly equipment shutdown. The cabinet can be easily configured for redundant 6 amp operation. Spare rectifier cards can be kept on hand as an additional safeguard.
Marconi Model Number: MZ12CAB
SPEC Number: 588240300
Key Features:
• Modular Design and High Density — more power in less Density space
• UL Listed — compliance to UL Listed local codes
• Built-in Distribution — Built-in Distribution provides eight fuse protected load positions
• Easy System Maintenance — Easy System Maintenance quickly change out modules without system shutdown
Specifications:
Input
Voltage: 120 (106 to 127) VAC, single phase
Frequency: 50/60 (47-63) Hz
Current: 4.9 amps (1 rectifier card) 9.5 amps (2 rectifier cards)
Output
Voltage: 48 (47 to 56) VDC positive or negative ground; factory set at 54 VDC
Current: At +40° C (+104° F) max. operating ambient temperature:
(1) rectifier card — 6 amps
(2) rectifier cards — 12 amps
At +50° C (+122° F) max. operating ambient temperature:
(1) rectifier card — 5 amps
(2) rectifier cards — 10 amps
Filtering (without battery): Voice band noise does not exceed 32 dBrn-C. Wide band noise does not exceed 200 mV over the 10 to 14 MHz range.
Protection
Current Limiting: Output current is limited to 110% ±5% of full load
Overvoltage Shutdown: If rectifier output voltage exceeds a preset value, the rectifier circuit card will shut down. If two or more rectifier circuit cards are operating in parallel, only the malfunctioning card is shut down.
Output Distribution Fuses: Each output (F1-F8) fused at 0 to 4 amps with GMT Type fuses. Total current of the DC outputs must not exceed the full load rating of the rectifier cabinet.
Alarms/Indicators: Power on, rectifier failure, and distribution failure alarm
Paralleling: The output can be connected in parallel with the output of other MZ Series rectifier cabinets having the same output voltage ratings.
Test Points: Front access test points on each rectifier circuit card are provided to measure output voltage and current.
EMI Suppression: Conforms to FCC Rules, part 15, Subpart B for Class A computing devices.
Environmental
Operating Temperature: 0° C to +50° C (+32° F to +122° F)
Storage Temperature: -40° C to +85° C (-40° F to +185° F)
Humidity: 0% to 95% relative humidity, non-condensing
Altitude: Sea level to 10,000' (3,048m)
Ventilation: Convection cooled
Heat Dissipation: 247 Btu/hr (1 rectifier card); 507 Btu/hr (2 rectifier cards).
Note: Cabinet should be positioned so that ventilation is not blocked and air temperature entering the cabinet does not exceed +50° C (+122° F). Optional ventilation baffle plates which install in a 3.5" (8.89cm) rack space can be specified. For 19" (48.26cm) relay racks, specify part number 377763200. For 23" (58.42cm) relay racks, specify part number 377764000.
Audible Noise: Does not exceed 45 dBA 5' (1.52m) from any cabinet surface.
Physical Characteristics
Mounting: This rectifier is furnished with reversible mounting angles for 19" (48.26cm) or 23" (58.42cm) mounting.
Dimensions:
Height: 3.47" (8.81cm)
Width: 19" (48.26cm), adaptable to 23" (58.42cm)
Depth: 14.25" (36.20cm)
Weight: Net 18 lbs. (8.17 kgs)
