Guardian

Product Information

The Guardian FMPe20.48 42 amp rectifier incorporates resonant technology to reduce component stresses, providing increased system reliability and a best-in-class efficiency. The rectifier features a wide input operating voltage range to maximize power availability within demanding utility power environments.

These compact 42 amp rectifiers support up to 10kW in a 1RU 23” shelf. A wide variety of distribution options are available to provide the maximum system flexibility for a wide range of communications applications that demand efficiency, reliability, and flexibility including wireless base stations, remote switches, and broadband access.

THREE YEAR WARRANTY

Features and Options
  • High efficiency (>96% typical efficiency) and energy saving
  • Leading power density of up to 21.5W/in³
  • Rugged input voltage range
  • Thermal protection
  • Hot-swappable
  • International standards compliance
SPECIFICATIONS
 
INPUT
VoltageOperating Range: 85-275VAC
Permitted variation: 85-300VAC
(L-PE and N-PE <250VAC)
Current<8.7A @ 230VAC
<11.1A @ 120VAC
Frequency47-63Hz
Power Factor>0.99 at >25% load
FuseTwo 25A fast blow (L & N)
 
OUTPUT
Voltage Range44-57.6VDC
Power2000W at ≥180VAC
1100W at 110VAC
779W at 85VAC
Current48V NOMINAL

41.7A at ≥180VAC
22.9A at 110VAC
16.2A at 85VAC
53.5V FLOAT

37.4A at ≥180VAC
20.6A at 110VAC
14.6A at 85VAC
Derating12.9W/Vin from 180-85Vin
Efficiency>96% from 30-70% load
>95.5% from 25-100% load
ToleranceVout ±0.5% from 10-90% load
Transient Response±6% at load variation 10-90% or 90-10%
50ms recovery
Load Sharing<5% of nominal current
Ripple<200mV p-p (BW 20 MHz)
Psophometric<2mV, according to CCITT norms
 
STANDARDS
Inrush CurrentETSI ETS 300 132-1
HarmonicsEN61000-3-2
EMCETSI EN300 386 V.1.3.2
EN61000-6-1, EN61000-6-2
EN61000-6-3, EN61000-6-4
EN55024 performance criterion A
EN55022 Class B
Telcordia NEBS GR1089
EnvironmentalStorage: ETSI EN300 019-2-1
Transport: ETSI EN300 019-2-2
Operation: ETSI EN300 019-2-3
Damp Heat: IEC60068-2-78
MIL-STD-810D section 507.2
Earthquake: GR 63 Core Zone 4
 
MECHANICAL
Dimensions, inches (mm)4.2 W x 14.0 D x 1.6 H (107 W x 355 D x 41 H)
Weight4.6lbs. (2.1kg)
CoolingFan-cooled, speed controlled
Insulation4.25kVDC primary-secondary
2.12kVDC primary-ground
0.2kVDC secondary-ground
EnclosureIP20
Mounting19in/23in x 1U subrack
up to 4/5 modules
 
GENERAL
ProtectionShort circuit
automatic current/power limiting
input/output overvoltage
thermal
AlarmsFan failure
Short circuit/arcing protection
High temperature/output voltage
Low output voltage
Input voltage out of range
Low fan speed (warning)
Internal communication failure
LED IndicatorsGreen: AC normal operation
Yellow steady: Low fan speed, High temperature
Yellow flashing: Comms. failure
Red: Module alarm / shutdown
Audible Noise (nominal input)<39dBA @ ≤25°C (50% load)
<57dBA (100% load)
Operating Temperature-40°C to +75°C up to 2000m
Reduced spec -40°C to -20°C
Derated output power from 55°C
linear derating to 75°C
For 3000m altitude derated by 5°C
Storage Temperature-60°C to +85°C
MTBF @ 25°C (without fan)>350,000 hours to MIL-HDBK-217F-2
GUARDIAN FAMILY RECTIFIERS
Model
Number 1
Input
Voltage

Output
Power 2

Output
Current 2
Max.
Temp
.

FMPe20.48

120VAC

1100W

22.9A @ 48V
20.6A @ 53.5V

55°C
208VAC 2000W

41.7A @ 48V
37.4A @ 53.5V

55°C
240VAC 2000W

41.7A @ 48V
37.4A @ 53.5V

55°C
FMP25.48

120VAC

1400W 29.2A @ 48V
26.2A @ 53.5V
55°C
208VAC 2500W 52.1A @ 48V
46.7A @ 53.5V
55°C
240VAC 2500W 52.1A @ 48V
46.7A @ 53.5V
55°C
FMPe30.48 120VAC

1700W

35.4A @ 48V
31.8A @ 53.5V

55°C
208VAC 2900W 60.4A @ 48V
54.2A @ 53.5V
55°C
240VAC 2900W 60.4A @ 48V
54.2A @ 53.5V
55°C

NOTES:
1. Models shown in italics are other members of the product family. Click on the model number to go to the relevant product page.
2. Ratings are up to the Max. Temp. ambient indicated. See individual product pages or datasheets for deratings at higher temperatures. The absolute maximum ambient temperature is 75°C.