corcom VM, XM, ZM User Manual

M Series

Power Entry Modules Patent No. 4,488,201
with Optional RFIPower Line Filters
for General and Medical Applications

ULRecognized
CSACertified
VDE Approved

M Series

The M series power entry modules offer the most choices
of power entry components and filtering options to fit a
specific need. The fully configured M series expands the
options of a manufacturer whose products are marketed
worldwide. One component, fully assembled and tested,
provides the capability of interfacing a multi-voltage power
supply to any common voltage or fusing scheme in the
world, without modification.

•The IECconnector provides an internationally accepted

power entry termination, which can be used with a
variety of line cords.

•The selectable fuseholder allows use of single or dual

European fuses, or a single North American fuse.

•The optional DPST on/off switch breaks both sides of the

line and is labeled with the international I/O markings.

•The optional voltage selector provides a convenient

means to change transformer primary connection, and it
is available in both 2-voltage and 4-voltage
configurations.

•The series is available with four filter circuits to meet a

variety of applications, and convenient connections are
provided on unfiltered models to allow wiring of a
separate RFIfilter.

The M series is a family of components offering maximum
flexibility and cost-effectiveness in the selection of primary
power components. Wiring to the modules is
accomplished via .110” terminals for labor savings and
convenience.

Four filter circuits provide a choice of attenuation tailored
to specific categories of susceptibility and emissions
needs.

HM Models– This medical filter provides susceptibility

protection without the leakage current associated with line­to-ground capacitors. Designed to allow equipment to
meet UL544 for patient care and nonpatient care
equipment, the HMfilter has a maximum leakage current
of 2 µA at 120 VAC60 Hz. See Appendix Cfor more
information on medical applications and ULstandards.

FM Models– General purpose RFIfilter designed for

susceptibility applications, effectively providing RFI
controlof line-to-ground noise. The design is compact and
meets the very low leakage current requirements of VDE
portable equipment as well as (120 Volt) UL544 nonpatient
medical equipment.

XM/ZM

VM

XM Models– High performance RFIfilter designed to

bring most digital equipment (including switching power
supplies)into compliance with FCC Part 15J, Class B
conducted emissions limits.

ZM Models– Premium RFIfilter designed to bring most

digital equipment (including switching power supplies) into
compliance with EN55022, Level B(as well as FCC Part
15J, Class B) conducted emissions limits.

Ordering Information

Consult your local Corcom sales representative for pricing.

Available Part Numbers
Filtered Unfiltered

5EHM1 3EXM1S 6VM1
5EHM1S 3EXM4 6VM1C
5EHM4 3EXM4S 6VM1S
5EHM4S 3EZM1S 6VM1SC
5EFM1 3EZM4 6VM2
5EFM1C 3EZM4S 6VM2S
5EFM1S 6VM4
5EFM1SC 6VM4C
5EFM4 6VM4S
5EFM4C 6VM4SC
5EFM4S
5EFM4SC

Libertyville, IL [phone]

Series M

Fuse Block/Cover Assembly

To change from North American to European fusing: open
cover, using small blade screwdriver or similar tool; loosen
Phillips screw two turns; remove fuse block by sliding up,
then away from Phillips screw and lifting up from pedestal;
change fuses; (note that twoEuropean fuses are required,
although a dummy fuse may be used in the neutral [lower]
holder); invert fuse block and slide back onto Phillips
screw and pedestal; tighten Phillips screw, and replace
cover(note that fuse(s) that go into the housing first are
the active set).

Fuse Changing

European Fusing Arrangement

Specifications – Unfiltered Models

Hipot rating (one minute):

line-to-ground 1500 VAC
line-to-line 1450 VDC

line-to-load (switch off) 2500 VAC
Operating voltages: 100, 120, 230, 240 VAC
Operating frequency: 50/60 Hz

Switch:

Double-insulated, rated for

100,000 operations at full load;

10,000 operations at 70 Amps inrush current.

Fuse (not included): Reversible fuseholder

accepts one 1/4 x 1-1/4” fuse

or two 5 x 20mm fuses.

Terminals: .110” (2.79mm) terminals

Electrical Schematics – Unfiltered Models

VM (1-Voltage)

North American Fusing Arrangement

Voltage Selection

To change selected voltage: open cover, using small blade
screwdriver or similar tool; set aside cover/fuse block
assembly; pull voltage selector card straight out of
housing, using indicator pin; orient selector card so that
desired voltage is readable at the bottom; orient indicator
pin to point up when desired voltage is readable at bottom
(note that when indicator pin is fixed, successive voltages
are selected by rotating the card 90° clockwise); insert
voltage selector card into housing, printed side of card

facing forward toward IEC connector and edge containing
the desired voltage first; replace cover, and verify that

indicator pin shows the desired voltage.

Voltage Selector Card Orientation

Note 3

VM (2-Voltage)

Note 2

Note 3

Note 1

Note 1

Note 4

VM (4-Voltage)

Note 2

Note 3

Note 1:Jumpers required if no input filter is used.
Note 2:Provision for dual European style fusing.
Note 3:On/off switch present only with “S” suffix.
Note 4:When using a center-tapped transformer, the C-F winding should

be the low voltage (high current) winding and must be capable of
handling the full primary current in the 120V position.

230V Nomenclature relates to pending European
CENELECagreement.

Note 1

Note 1

LA
99

Libertyville, IL [phone]