Installation Instructions

Altronix is not responsible for any typographical errors. Product specifications are subject to change without notice.
140 58th Street, Brooklyn, New York 11220 USA, 718-567-8181, fax: [phone]
website: www.altronix.com, e-mail: [e-mail]. Made in U.S.A.
IIT2885D - Rev. 051712 B16P
T2885D
Open Frame Transformer
Specification Chart:
Model # Input (Primary) Output (Secondary)
T2885D 115VAC (1A) or 220VAC (0.5A) 50/60Hz 28VAC/100VA (3.5A)
Installation Instructions:
1. Mount transformer in the desired location/enclosure (refer to Transformer Dimensions below).
2. Connect AC power 115VAC or 220VAC, 50/60Hz to the primary leads (black, white, red and blue)
(refer to Wiring Configuration below).
3. Measure output voltage across the secondary leads Black and Brown before connecting devices. This helps avoiding
potential damage. Open circuit voltage is approx. 30.4VAC (refer to Wiring Configuration below).
4. Connect 28VAC device to be powered to the secondary leads (brown and black) (refer to Wiring Configuration below).
WARNING: This installation should be made by qualified service personnel and should conform to the National
Electrical Code and all local codes.
Wiring Configuration:
Transformer Dimensions
(H x W x D approximate):
2.56” x 3.57” x 2.25” (65mm x 90.7mm x 57.2mm)
PRIMARY - 115VAC 50/60Hz
Red
Lead
White
Lead
Blue
Lead
Black
Lead
PRIMARY - 220VAC 50/60Hz
Black
Lead
White
Lead
Blue
Lead
Red
Lead
SECONDARY - 28VAC
Black
Lead
Brown
Lead
10 9 8 7 6
PRIMARY TERMINALS
SECONDARY TERMINALS
5 4 3 2 1
3.57”
(90.7mm)
4.00”
(101.6mm)
3.625”
(92.1mm)
2.56”
(65mm)
2.25”
(57.2mm)
1.31”
(33.3mm)
MEMBER