Installation Instructions

T2428300
Open Frame Transformer
Specification Chart:
Model # Input (Primary) Output (Secondary)
T2428300 115VAC, 50/60Hz, 2.7A 24VAC/300VA (12.5A) or 28VAC/300VA (10A)
Installation Instructions:
1. Mount transformer in desired location/enclosure (refer to Transformer Dimensions below).
2. Connect AC power 115VAC, 50/60Hz to primary leads (red and white) (refer to Wiring Configuration below).
4. Measure output voltage across the secondary leads before connecting devices (refer to Wiring Configuration below).
This helps avoiding potential damage.
- Yellow and Brown for 24VAC (open circuit voltage @ 115VAC approx. 26.1VAC).
- Black and Brown for 28VAC (open circuit voltage @ 115VAC approx. 30.4VAC).
5. Connect 24VAC device(s) to Yellow and Brown leads or 28VAC device(s) to Black and Brown leads
(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:
XFMR
Red
Primary Leads
Secondary
Leads
White
24VAC (Yellow)
28VAC (Black)
Common (Brown)
5.15"
0.43" 0.37"
3.88"
3.52"
0.49"
0.67"
0.49"
0.67"
0.97"
5.10"
1.08"
3.05"
3.25"
0.50"0.75"
0.50"
0.50"
4.10"
0.53"
1.19"
0.25"
0.50"
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].
IIT2428300 - Rev. 051712 B16P
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