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Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 06/10/2011 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 1 of 5 DATASHEET Rev. B DCHF350 SERIES 2:1 Input Voltage Range 12 & 24 VDC Single Outputs 330~350W Output Power DC/DC Chassis Mount Power Converters

FEATURES

 RoHS Compliant  ±10% Voltage Adjustment Range  2:1 Input Voltage Range  Built-in Fan  Built-in Remote Sense (Option)  Remote ON/OFF Control (Option)  330~350W Output Power  12VDC and 24VDC Single Outputs Voltages  100% Full Load Burn-in Tested  Dimensions: 8.46 x 4.53 x 1.97 Inches  Short Circuit, Over Voltage, Over Load, and Over Temperature Protected

DESCRIPTION

The DCHF350 series of DC/DC power converters offers up to 35 0W output power in an 8.46 x 4.53 x 1.97 enclosed case. This series has 12VDC and 24VDC single output models with 2:1 input voltage ranges of 19-36VDC, 36-72VDC, and 72- 144VDC. Some features include ±10% output adjustability, re mote sense (optional), remote ON/OFF control (optional), and a built-in fan. These supplies are RoHS compliant and are protected against short circuit, over voltage, over load, and over temperature conditions. All supplies in this series are 100% full load burn-in tested.

Rev. B DCHF350 Series 350W, Single Output 2:1 Input Voltage Range DC/DC Chassis Mount Converters Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 06/10/2011 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 2 of 5 SPECIFICATIONS: DCHF350 Series All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted. We reserve the right to change specifications based on technological advances. SPECIFICATION TEST CONDITIONS Min Nom Max Unit INPUT SPECIFICATIONS 24VDC nominal input models 19 24 36 48VDC nominal input models 36 48 72 Input Voltage Range 110VDC nominal input models 72 110 144 VDC Remote ON/OFF Control optional OUTPUT SPECIFICATIONS Output Voltage See Table Output Voltage Adjustment Range -10 +10 % Line Regulation Full load ≤ -0.5 ≤ +0.5 % Load Regulation ≤ -0.5 ≤ +0.5 % Output Current See Table Output Power See Table Ripple & Noise See Table Remote Sense optional PROTECTION Over Voltage Protection 115 150 % Vo Over Load Protection 110 130 % Io Short Circuit Protection Yes Over Temperature Protection Yes GENERAL SPECIFICATIONS Efficiency See Table Input to Output 1000 Input to FG 1000 Withstand Voltage Output to FG All for 1 minute 500 VDC Isolation Resistance At 500VDC > 100 M Ω ENVIRONMENTAL SPECIFICATIONS Operating Temperature -10 +50 °C Storage Temperature -20 +85 °C Cooling Method Fan PHYSICAL SPECIFICATIONS Dimensions (L x W x H) 8.46 x 4.53 x 1.97 inches (215 x 115 x 50 mm) Weight 2.4 lbs (1100g) SAFETY & EMC CHARACTERISTICS Safety Standards Design refer to LVD EMC Standards Design refer to EN55022, EN61000-4

Rev. B DCHF350 Series 350W, Single Output 2:1 Input Voltage Range DC/DC Chassis Mount Converters Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 06/10/2011 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 3 of 5 MODEL SELECTION TABLE Model Number Input Voltage Output Voltage Output Current Ripple & Noise Output Power Efficiency DCHF350W-SMD24-12 12 VDC 27.5 A 120mVp-p 330W 80% DCHF350W-SMD24-24

24 VDC

(19 - 36 VDC) 24 VDC 14.6 A 150mVp-p 350W 80% DCHF350W-SMD48-12 12 VDC 27.5 A 120mVp-p 330W 81% DCHF350W-SMD48-24

48 VDC

(36 - 72 VDC) 24 VDC 14.6 A 150mVp-p 350W 81% DCHF350W-SMD110-12 12 VDC 29.2 A 120mVp-p 350W 83% DCHF350W-SMD110-24

110 VDC

(72 - 144 VDC) 24 VDC 14.6 A 150mVp-p 350W 87% MECHANICAL DRAWING 0.98 (25) 0.49 (12.5) 1.97 (50) 4 - M4 8.46 (215) 1.91 (48.5) 1.44 (36.5) 0.39 (10) 3.74 (95) 4.53 (115) 4 - M4 0.33 (8.5) 6 - M3 1.08 (27.5) 4.63 (117.5) 1.99 (50.5) Unit: inches (mm)

Rev. B DCHF350 Series 350W, Single Output 2:1 Input Voltage Range DC/DC Chassis Mount Converters Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 06/10/2011 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 4 of 5 PIN CONNECTIONS PIN CONNECTIONS Pin No Assignment 1, 2 3, 4 Screw Size: M4*6 DC Output (V+) DC Output (V-) FG DC Input (V+) DC Input (V-) 8.46 (215) 4 - M4 Unit: inches (mm)0.18 (4.5) 0.43 (11) 4 - M4 DC INPUT DC OUTPUT 1.97 (50) 4.53 (115) 1.97 (50) 0.49 (12.5) 0.98 (25)

Rev. B DCHF350 Series 350W, Single Output 2:1 Input Voltage Range DC/DC Chassis Mount Converters Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 06/10/2011 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 5 of 5 COMPANY INFORMATION Wall Industries, Inc. has created custom and modified units for over 50 years. Our in-house research and development engineers will provide a solution that exceeds your performance requirements on-time and on budget. Our ISO9001-2008 certification is just one example of our commitment to producing a high quality, well-documented product for our customers. Our past projects demonstrate our commitment to you, our customer. Wall Industries, Inc. has a reputation for working closely with its customers to ensure each solution meets or exceeds form, fit and function requirements. We will continue to provide ongoing support for your project above and beyond the design and production phases. Give us a call today to discuss your future projects. Contact Wall Industries for further information: Phone: (603)778-2300 Toll Free: (888)597-9255 E-mail: sales@wallindustries.com Web: www.wallindustries.com Address: 5 Watson Brook Rd. Exeter, NH 03833