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Sigma II LC Series - Compact 1U PFC Front-Ends

All products can be customized to meet specific requirements.
700 to 1000 Watts with Hot-Swap & Chassis Mount Models

AC Front End, 700W-1000W, Sigma II LC, Power Supply

PDF Datasheets

For Support call:
North America: 954-346-2442 x1071
Europe: +44(0) 1903 768 200
Models Available
Models Output Voltage Output Current Max Output Power Chassis Mount Hot Plug Buy
LC12-58-33-RH6 12VDC 58A 700W N Y Call to Order
LC24-38-40-RH6 24VDC 38A 900W Y N Call to Order
LC48-21-40-RH6 28VDC 21A 1000W Y N Call to Order
LA48-14.6-40-RH6 48VDC 14.6A 700W Y N Call to Order

Features and Options

12, 24 or 48 VDC Outputs
Class B Conducted EMI
Up to 17 Watts/Cubic Inch
1U High SlimLine Package
Hot-Swappable & Chassis Mount Models
Staged Pin Engagement
Low Drop ORing Circuit
Single Wire Current Sharing
Universal 85 to 264VAC Input
Control & Monitoring Features

Specifications Overview

Up to 1000 Watts with Hot Swap & Chassis Mount Models

Safety Standards

UL60950-1
CSA22.2 No.60950-1
EN60950-1

Warranty

Three Years

Input Specifications

LA Series: 85-264VAC, 47-63hz - For operation from 90VAC to 85VAC contact factory.
LC Series: 85-264VAC, 47-63hz - Refer to Model Derating Table for allowable Output Current.
Power Factor: 0.99
Inrush Current Limiting: 230VAC-50A, 115VAC-25A
Harmonic Distortion: EN61000-3-2

Output Specifications

Total Output Power, Continuous, Max: 700-1000 Watts
Voltage Adjustment Range, Min: ±5%
Total Regulation: 1.5%
Ripple & Noise, Pk-Pk, 20MHz Bandwidth: 1%
Holdup Time: 8-16mS
Dynamic Response: 300μS
Minimum Load: 0A
Overload Protection: Auto Recovery
Overvoltage Protection: Latched Shutdown
Remote Sense: Up to 0.25V Per Wire
Current Share: Single Wire
DC Power Good Signal: Open Collector
Inhibit/Enable: TTL Compatible
Overtemperature Warning: Shutdown

General Specifications

Efficiency: 80% at Full Load
Conducted EMI: EN55022 Curve B, FCC20780 pt 15J Curve B
Input Immunity, Conducted
- Fast Transients, Line-Line: ±2kV (EN61000-4-4 Level 3)
- Surges, Line-Line: ±2kV (EN61000-4-5 Level 3)
- Surges, Line-Ground: ±4kV (EN61000-4-5 Level 3)
MTBF (Bellcore): 200,000 Hours
Safety Standards: EN60950-1, UL60950-1, CSA22.2 No.60950-1

Physical Specifications

Case Material: Aluminum
Dimensions, Inches(mm): 1.58 H x 3.35 W x 11.15 D, 40.13 x 47.24 x 287.53
Weight: 4.00 lbs. (1.82 kg.)

Environmental Specifications

Operating Temperature: 0ºC to 70ºC Ambient
Derating: 2.5% / ºC, 50ºC to 70ºC
Cooling: Integral Ball Bearing Fan