belfuse.com/signal
Chassis Mount
STP Series
Toroidal Power Transformers
Power in the Round 100 VA to 2000 VA
The STP series of transformers offer VA power ranges from 100 VA
to 2000 VA inclusive. These standard transformer products share
common lead lengths, colors, mounting configurations and more. The
STP series are designed to comply with international safety standards.
Benets
• Minimal core losses
• Low profile
• Power/mass efficient
• Reduced EMI
• Low dB
• RoHS compliant
General Specications
• Power - 100 VA to 2000 VA
• Dual Primaries - 2 x 115 V / 50-400 Hz
• Dual Secondaries - Standard outputs 2 x 115 V with multiple
output configurations available
• Connections: 12.0” color-coded stranded leads
• Supplied with mounting hardware set; screw, nut, top plate and
2 rubber pads
• Insulation System - UL 1446 Class B, 130° C
Agency Certications
• Component certifications for North American and IEC/EN
standards available on request
• UL recognized to UL 506 / UL 5085, File # E63829
RoHS
Compliant
belfuse.com/signal
500 Bayview Avenue, Inwood, NY 11096
Toll Free 866-239-5777 | Tel 516-239-5777 | Fax 516-239-7208
sales@signaltransformer.com | techhelp@signaltransformer.com
Custom versions available upon request.
© 2018 Signal Transformer Specications subject to change without notice STP Series 11.18
STP Series Datasheet
Part Number Selection
Mechanical Specications
AA
B
Notes:
1. STP transformers having dual secondary windings may be ordered by specifying the power range, output voltage and current requirements.
(A 250 VA transformer with two 24 V secondary windings = STP-0250-2024. A 1200 VA transformer with two 120 V windings = STP-1200-2120.)
Where dissimilar or multiple output configurations are required, please contact Customer Service for additional information. In all cases, a serialized part
number will be assigned to the final product label.
2. The dimension profiles depicted for each VA range are for standard transformers with 2 x 115 V output configurations. Dimensions of transformers with
multiple outputs, dissimilar outputs or ELV outputs may vary.
Part Number
1
Power Range
Dimensions
2
Inches (mm)
Weight
Recomm.
Fastener Size
VA
A B
lbs
(kg)
STP-0100-2115 100 4.2 (105) 1.4 (35) 2.86 (1.3) #8
STP-0150-2115 150 4.6 (116) 1.7 (42) 4.40 (2.0) #10
STP-0200-2115 200 4.8 (120) 1.9 (48) 5.30 (2.4) 1/4”
STP-0250-2115 250 5.0 (127) 2.0 (50) 6.40 (2.9) 1/4”
STP-0300-2115 300 5.1 (128) 2.2 (55) 7.0 (3.2) 1/4”
STP-0400-2115 400 5.3 (133) 2.8 (70) 10.3 (4.7) 5/16”
STP-0500-2115 500 5.6 (140) 2.9 (72) 12.1 (5.5) 3/8”
STP-0600-2115 600 6.1 (155) 2.9 (72) 14.8 (6.7) 3/8”
STP-0800-2115 800 6.7 (170) 2.9 (72) 18.0 (8.2) 3/8”
STP-1000-2115 1000 7.1 (180) 3.1 (78) 22.1 (10.0) 3/8”
STP-1200-2115 1200 7.8 (198) 3.2 (80) 29.5 (13.4) 3/8”
STP-1600-2115 1600 8.3 (210) 3.4 (86) 35.3 (16.0) 1/2”
STP-2000-2115 2000 9.2 (232) 3.6 (90) 44.1 (20.0) 1/2”
BLACK
BLACK
WHITE
WHITE
BROWN
BROWN
RED
RED
PRIMARY 1
PRIMARY 2
SECONDARY 1
SECONDARY 2
0 V
0 V
115 V
115 V
RoHS
Compliant