Downloads for Isolation Power Transformers (N-90MD)

P OWER TRANS FOR MER
CHASSIS MOUNT : Isolation Medical
N-90MD
Electrical Specifications (@25°C)
1. Maximum Power:
2. Input Voltage:
3. Output Voltage:
4. Full Secondary Load:
5. Voltage Regulation:
6. Leakage Current:
250 VA
115 V, 50 / 60 Hz
115V + 5%
2.17 Amps RMS
5 % TYP @ full load to no load
<50µA between primary and secondary*
Description:
The N-90MD is power transformer for isolating equipment from direct connection to
the power line. It is designed and constructed to meet the low leakage current
requirements for today’s medical equipment. The primary and secondary are wound
on separate arbors, then assembled on a laminate core side-by-side separated by
insulation. This prevents electrical connection under normal or overload conditions
between the primary and secondary windings. This hospital type unit is offered with a
resettable circuit breaker, providing protection from overload or short circuit
conditions.
3.5 AMP
PRIMARY
OVERCURRENT
CIRCUIT
BREAKER
B
A
Safety:
These units are designed with 1500V isolation between winding to winding and
between winding and core. Materials and construction are rated for Class B
insulation system.
C
UL 544 File: E10290†
Dimensions:
Unit: In inches
A
B
C
D
E
4.625
3.875
6.125
3.00
4.937
Weight: 11.9.0 lbs
Mounting Holes: .375 x .187
Connections: 6 ft. long cord, 5-15P NEMA Plug, 5-15R NEMA Receptacle
E
D
Schematic:
BLK
115 V
50/60 Hz
PF
SF
PS
SS
BLK
WHT
GRN
WHT
115 V
GRN
* Leakage current between primary and secondary is typically measured at less than 10µA.
† UL listing is only valid on parts produced on or before December 31, 2009. Parts will carry a
date code of “0952” or earlier.
RoHS Compliance: As of manufacturing date February 2005, all standard products meet the requirements
of 2011/65/EU, known as the RoHS initiative.
* Upon printing, this document is considered “uncontrolled”. Please contact Triad Magnetics’ website for
the most current version.
Web: www.TriadMagnetics.com
Phone 951-277-0757
Fax 951-277-2757
460 Harley Knox Blvd.
Perris, California 92571
Publish Date: December 4, 2013
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