www.murata-ps.com Recommended Alternative: PQC-COVER MVAC-COVER Enclosure Assembly for MVACxxx Series To Be Discontinued* *LAST TIME BUY: 4/1/201 8. CLICK HERE FOR DISCONTINUANCE NOTICES. MODEL USEAGE TABLE ORDERING GUIDE MVAC400 Models MVAC250 Models Model Number Description MVAC400-xxAF MVAC250-xxF MVAC-COVER Enclosure for MVAC250 and MVAC400 product series MVAC400-xxAFD MVAC250-xxAF MVAC400-xxAFT MVAC250-xxAFD PRODUCT OVERVIEW MVAC-400-xxAFR MVAC250-xxAFT The MVAC-COVER is intended as an enclosure for the MVAC400 & MVAC250 series of open frame prod- ucts and can be used with the models shown in the Model Usage Table. It is intended for system deployments where the product is deployed in a semi open environment and not mounted in a totally enclosed system case (where the product is inaccessible to End Users). It is manufactured from high quality steel and provided with an anti-corrosion coating. The construction also provides an optimized air ow pattern to accommodate both forced and convection cooling deployments. The MVAC-COVER kit is sold separately and it is intended that the End User assembles the MVACxxx open frame product directly. 2 (4X) 5 (4X) 4 FEATURES INPUT CONNECTOR Allows installation in equipment that does not afford protection MVACxxx safety approvals not impacted Allow operation in convection and forced cooled CUTOUT applications Multiple mounting orientations 3 OUTPUT CONNECTORS Galvanized steel corrosion resistant plating RoHS Complaint MATERIALS PARTS LIST GROUND SYMBOL (See Figure Opposite) Enclosure Base Item Enclosure Cover Insulator Sheet PCB Retaining Screws (M3x6 Pan Head With Cup Washer) 1 Cover retain Screws (M3 x 6 Countersink Screw) INSTALLATION INSTRUCTIONS 1. Install the insulator () in to the chassis base () taking care to align the cutout with the grounding symbol (clearly stamped in the chassis) and PEM standoffs and ensuring that the insulator lies at against the chassis base when properly installed. 2. Lower the MVAC-400 into place with the orientation as shown in the above diagram. 3. The mounting holes (slotted holes) should align with the 4 PEM standoffs provided in the chassis base. 4. Install the M3 x 6 pan head screws () complete with cup washers. 5. Align the cover with the chassis base (). For full details go to 6. Secure cover () to the chassis base with the 4 M3 x 6 countersink screws (). www.murata-ps.com/rohs 7. Inspect the completed assembly for misalignment (cover, chassis base, insulator, or PCB). www.murata-ps.com/support MVAC-COVER.A01 Page 1 of 2MVAC-COVER Enclosure Assembly for MVACxxx Series MECHANICAL DIMENSIONS 21.0 95.0 WINDOW FOR ACCESSING INPUT CONNECTOR & GROUND TERMINAL WINDOW FOR ACCESSING OUTPUT CONNECTORS 137.0 21.0 95.0 15.0 107.0 23.5 90.0 SAFETY CONSIDERATIONS 1. Refer to the relevant MVAC datasheet of the product to be deployed in the MVAC-COVER assembly. 2. A protective bonding conductor from the end product protective earthing terminal must be tied to TB1. 3. This enclosure can only be used with a Class I deployment and is not suitable for Class II deployment. 4. Ensure that the insulator is correctly aligned and ts correctly and is ush with the chassis base. 5. The chassis standoffs are dimensioned to provide the correct clearance in conjunction with the insulator. 6. Do not operate the power supply with the cover removed. The primary heatsink is considered a live primary circuit, and should not be touched. 7. It is the responsibility of the end user to ensure that in all cases, the applicable safety standards are applied to provide the proper creepage and clearance requirements, and to comply with the safety certi cation requirements of the installed MVAC product. 8. Used only in non-tropical conditions. 9. There are a total of 10 M3 inserts for mounting the enclosure: 6 on the bottom of the chassis (maximum screw penetration of 3mm) 4 on the side walls maximum screw penetration of 5mm) 10. This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: