Maida Development Company -
sales@maida.com
- (757) 723-0785
STANDARD MARKING
Minimum marking shall consist of an
abbreviated style designation and, when
space is available, the manufacturer’s
initials or company logo.
Example:
MDC
FV
14N201
Where:
MDC - Company Initials
FV -
Fail safe Varistor
14 -
Diameter
N -
Series Designation (FN, FM, FE)
201
- Nominal DC Voltage Rating
(200VDC)
A manufacturing date code and/or
special markings are available upon
request.
Other safety agency designations are
included where applicable.
THERMALLY PROTECTED
SERIES
INTRODUCTION
14 FN 201 K
1. Nominal Disk Diameter
14 – 14mm
20 – 20mm
25 – 25mm
2. Lead
Configuration
FN – 2 leaded
FM – 3 leaded, fused on center lead
FE – 3 leaded, fused on outer lead
3. AC Voltage Rating
Two significant figures plus number
of zeroes that follow, i.e. 201 is 200 VDC
4. Varistor Voltage Range Tolerance
The Thermally Protected Series is designed for safe
disconnection of the varistor from the circuit due to
abnormal operating conditions. These components
consist of 2 or 3 leaded wire leads, a thermal
disconnect, and have nominal diameters of 14mm,
20mm, and 25mm. Voltage ranges from 60VAC-
750VAC with peak surge currents of 4.5kA/6kA
(14mm), 10kA (20mm), and 18kA (25mm).
STYLE DESIGNATION
The Maida Style Number is the typical means to
identify our components when ordered. The style
number identifies several parameters that are
important for the characteristics of the device. An
alternative ordering method, if known, is by our Item
Number.
The following example is the standard part
numbering system when ordering our Thermally
Protected Series components by the Maida Style
Number:
39