Open Style 15VA to 1000VA

High quality open style toroidal transformers with either single 230V primary winding or with twin 115Vac 50/60Hz primary windings for 230V (series) or 115V (parallel) operation.
Twin secondary windings may be connected in series or parallel, or used independently.
Power Ratings 15VA to 1000VA
Supplied with mounting discs for single-bolt fixing

Datasheet:Open & Encapsulated Transformers

High quality open style toroidal transformers with either single 230V primary winding or with twin 115Vac 50/60Hz primary windings for 230V (series) or 115V (parallel) operation.
Twin secondary windings may be connected in series or parallel or used independently.
Power Ratings 15VA, 30VA, 50VA, 80VA, 120VA, 160VA, 225VA, 300VA, 500VA, 625VA, 800VA, 1000VA
Approved to EN61558, IEC61558 and UL recognised to UL5085-1
Small size and low weight compared with traditional stacked lamination types
Extremely low level of radiated magnetic field
Very low induced noise (hum)
Very low iron loss
Double insulated primary leads
Supplied with mounting kit
100% electrical and flash tested
Manufactured in an ISO 9001:2015 and ISO 14001:2015 certified Talema facility
Fully RoHS & REACH Compliant


Datasheet: Open & Encapsulated Transformers

Important Installation Note:

Under no circumstances should both ends of the fixing bolt contact a metal chassis or frame as this would create a ‘shorted turn’ causing irreparable damage.

Many of these transformers are available through distribution : See our Transformers in Distribution page and choose the Mounting Style “Open Style” from the drop-down list.

Table of Talema Part Numbers with Brief Specifications

See datasheet for full specifications

Datasheets are available by VA Rating and Primary Voltage(s):

VADatasheet LinkPart NumberPrimary Winding(s)Secondary VoltageSecondary Current (Each)
1515VA, 230V0015P1-2-006230V2 x 6V1.25
1515VA, 230V0015P1-2-009230V2 x 9V0.83
1515VA, 230V0015P1-2-012230V2 x 12V0.63
1515VA, 230V0015P1-2-015230V2 x 15V0.5
1515VA, 230V0015P1-2-018230V2 x 18V0.42
1515VA, 2 x 115V0015P2-2-0062 x 115V2 x 6V1.25
1515VA, 2 x 115V0015P2-2-0092 x 115V2 x 9V0.83
1515VA, 2 x 115V0015P2-2-0122 x 115V2 x 12V0.63
1515VA, 2 x 115V0015P2-2-0152 x 115V2 x 15V0.5
1515VA, 2 x 115V0015P2-2-0182 x 115V2 x 18V0.42
3030VA, 230V0030P1-2-006230V2 x 6V2.5
3030VA, 230V0030P1-2-009230V2 x 9V1.67
3030VA, 230V0030P1-2-012230V2 x 12V1.25
3030VA, 230V0030P1-2-015230V2 x 15V1
3030VA, 230V0030P1-2-018230V2 x 18V0.83
3030VA, 230V0030P1-2-022230V2 x 22V0.68
3030VA, 2 x 115V0030P2-2-0062 x 115V2 x 6V2.5
3030VA, 2 x 115V0030P2-2-0092 x 115V2 x 9V1.67
3030VA, 2 x 115V0030P2-2-0122 x 115V2 x 12V1.25
3030VA, 2 x 115V0030P2-2-0152 x 115V2 x 15V1
3030VA, 2 x 115V0030P2-2-0182 x 115V2 x 18V0.83
3030VA, 2 x 115V0030P2-2-0222 x 115V2 x 22V0.68
5050VA, 230V0050P1-2-006230V2 x 6V4.17
5050VA, 230V0050P1-2-009230V2 x 9V2.78
5050VA, 230V0050P1-2-012230V2 x 12V2.08
5050VA, 230V0050P1-2-015230V2 x 15V1.67
5050VA, 230V0050P1-2-018230V2 x 18V1.39
5050VA, 230V0050P1-2-022230V2 x 22V1.14
5050VA, 230V0050P1-2-055230V2 x 55V0.45
5050VA, 2 x 115V0050P2-2-0062 x 115V2 x 6V4.17
5050VA, 2 x 115V0050P2-2-0092 x 115V2 x 9V2.78
5050VA, 2 x 115V0050P2-2-0122 x 115V2 x 12V2.08
5050VA, 2 x 115V0050P2-2-0152 x 115V2 x 15V1.67
5050VA, 2 x 115V0050P2-2-0182 x 115V2 x 18V1.39
5050VA, 2 x 115V0050P2-2-0222 x 115V2 x 22V1.14
5050VA, 2 x 115V0050P2-2-0552 x 115V2 x 55V0.45
8080VA, 230V0080P1-2-010230V2 x 10V4
8080VA, 230V0080P1-2-012230V2 x 12V3.33
8080VA, 230V0080P1-2-015230V2 x 15V2.67
8080VA, 230V0080P1-2-018230V2 x 18V2.22
8080VA, 230V0080P1-2-022230V2 x 22V1.82
8080VA, 2 x 115V0080P2-2-0102 x 115V2 x 10V4
8080VA, 2 x 115V0080P2-2-0122 x 115V2 x 12V3.33
8080VA, 2 x 115V0080P2-2-0152 x 115V2 x 15V2.67
8080VA, 2 x 115V0080P2-2-0182 x 115V2 x 18V2.22
8080VA, 2 x 115V0080P2-2-0222 x 115V2 x 22V1.82
120120VA, 230V0120P1-2-012230V2 x 12V5
120120VA, 230V0120P1-2-015230V2 x 15V4
120120VA, 230V0120P1-2-018230V2 x 18V3.33
120120VA, 230V0120P1-2-022230V2 x 22V2.73
120120VA, 230V0120P1-2-055230V2 x 55V1.03
120120VA, 2 x 115V0120P2-2-0122 x 115V2 x 12V5
120120VA, 2 x 115V0120P2-2-0152 x 115V2 x 15V4
120120VA, 2 x 115V0120P2-2-0182 x 115V2 x 18V3.33
120120VA, 2 x 115V0120P2-2-0222 x 115V2 x 22V2.73
120120VA, 2 x 115V0120P2-2-0552 x 115V2 x 55V1.03
160160VA, 230V0160P1-2-012230V2 x 12V6.67
160160VA, 230V0160P1-2-015230V2 x 15V5.33
160160VA, 230V0160P1-2-018230V2 x 18V4.44
160160VA, 230V0160P1-2-022230V2 x 22V3.64
160160VA, 230V0160P1-2-030230V2 x 30V2.67
160160VA, 230V0160P1-2-055230V2 x 55V1.45
160160VA, 2 x 115V0160P2-2-0122 x 115V2 x 12V6.67
160160VA, 2 x 115V0160P2-2-0152 x 115V2 x 15V5.33
160160VA, 2 x 115V0160P2-2-0182 x 115V2 x 18V4.44
160160VA, 2 x 115V0160P2-2-0222 x 115V2 x 22V3.64
160160VA, 2 x 115V0160P2-2-0302 x 115V2 x 30V2.67
160160VA, 2 x 115V0160P2-2-0552 x 115V2 x 55V1.45
225225VA, 230V0225P1-2-012230V2 x 12V9.38
225225VA, 230V0225P1-2-015230V2 x 15V7.5
225225VA, 230V0225P1-2-018230V2 x 18V6.25
225225VA, 230V0225P1-2-022230V2 x 22V5.11
225225VA, 230V0225P1-2-024230V2 x 24V4.69
225225VA, 230V0225P1-2-030230V2 x 30V3.75
225225VA, 2 x 115V0225P2-2-0122 x 115V2 x 12V9.38
225225VA, 2 x 115V0225P2-2-0152 x 115V2 x 15V7.5
225225VA, 2 x 115V0225P2-2-0182 x 115V2 x 18V6.25
225225VA, 2 x 115V0225P2-2-0222 x 115V2 x 22V5.11
225225VA, 2 x 115V0225P2-2-0242 x 115V2 x 24V4.69
225225VA, 2 x 115V0225P2-2-0302 x 115V2 x 30V3.75
300300VA, 230V0300P1-2-012230V2 x 12V12.5
300300VA, 230V0300P1-2-018230V2 x 18V8.33
300300VA, 230V0300P1-2-022230V2 x 22V6.82
300300VA, 230V0300P1-2-025230V2 x 25V6
300300VA, 230V0300P1-2-030230V2 x 30V5
300300VA, 230V0300P1-2-035230V2 x 35V4.29
300300VA, 230V0300P1-2-055230V2 x 55V2.73
300300VA, 2 x 115V0300P2-2-0122 x 115V2 x 12V12.5
300300VA, 2 x 115V0300P2-2-0182 x 115V2 x 18V8.33
300300VA, 2 x 115V0300P2-2-0222 x 115V2 x 22V6.82
300300VA, 2 x 115V0300P2-2-0252 x 115V2 x 25V6
300300VA, 2 x 115V0300P2-2-0302 x 115V2 x 30V5
300300VA, 2 x 115V0300P2-2-0352 x 115V2 x 35V4.29
300300VA, 2 x 115V0300P2-2-0552 x 115V2 x 55V2.73
500500VA, 230V0500P1-2-020230V2 x 20V12.5
500500VA, 230V0500P1-2-025230V2 x 25V10
500500VA, 230V0500P1-2-030230V2 x 30V8.33
500500VA, 230V0500P1-2-040230V2 x 40V6.25
500500VA, 230V0500P1-2-055230V2 x 55V4.55
500500VA, 2 x 115V0500P2-2-0202 x 115V2 x 20V12.5
500500VA, 2 x 115V0500P2-2-0252 x 115V2 x 25V10
500500VA, 2 x 115V0500P2-2-0302 x 115V2 x 30V8.33
500500VA, 2 x 115V0500P2-2-0402 x 115V2 x 40V6.25
500500VA, 2 x 115V0500P2-2-0552 x 115V2 x 55V4.55
625625VA, 230V0625P1-2-018230V2 x 18V17.4
625625VA, 230V0625P1-2-022230V2 x 22V14.2
625625VA, 230V0625P1-2-040230V2 x 40V7.81
625625VA, 230V0625P1-2-045230V2 x 45V6.94
625625VA, 230V0625P1-2-050230V2 x 50V6.25
625625VA, 230V0625P1-2-055230V2 x 55V5.68
625625VA, 230V0625P1-4-012230V4 x 12V13.00
625625VA, 2 x 115V0625P2-2-0182 x 115V2 x 18V17.4
625625VA, 2 x 115V0625P2-2-0222 x 115V2 x 22V14.2
625625VA, 2 x 115V0625P2-2-0402 x 115V2 x 40V7.81
625625VA, 2 x 115V0625P2-2-0452 x 115V2 x 45V6.94
625625VA, 2 x 115V0625P2-2-0502 x 115V2 x 50V6.25
625625VA, 2 x 115V0625P2-2-0552 x 115V2 x 55V5.68
625625VA, 2 x 115V0625P2-4-0122 x 115V4 x 12V13
800800VA, 230V0800P1-2-040230V2 x 40V10
800800VA, 230V0800P1-2-045230V2 x 45V8.89
800800VA, 230V0800P1-2-050230V2 x 50V8
800800VA, 230V0800P1-2-055230V2 x 55V7.27
800800VA, 2 x 115V0800P2-2-0402 x 115V2 x 40V10
800800VA, 2 x 115V0800P2-2-0452 x 115V2 x 45V8.89
800800VA, 2 x 115V0800P2-2-0502 x 115V2 x 50V8.09
800800VA, 2 x 115V0800P2-2-0552 x 115V2 x 55V7.27
10001000VA, 230V1000P1-2-018230V2 x 18V27.8
10001000VA, 230V1000P1-2-022230V2 x 22V22.7
10001000VA, 230V1000P1-2-040230V2 x 40V12.5
10001000VA, 230V1000P1-2-045230V2 x 45V11.1
10001000VA, 230V1000P1-2-050230V2 x 50V10
10001000VA, 230V1000P1-2-055230V2 x 55V9.09
10001000VA, 230V1000P1-4-022230V4 x 22V11.4
10001000VA, 230V1000P1-4-028230V4 x 28V8.93
10001000VA, 2 x 115V1000P2-2-0182 x 115V2 x 18V27.8
10001000VA, 2 x 115V1000P2-2-0222 x 115V2 x 22V22.7
10001000VA, 2 x 115V1000P2-2-0402 x 115V2 x 40V12.5
10001000VA, 2 x 115V1000P2-2-0452 x 115V2 x 45V11.1
10001000VA, 2 x 115V1000P2-2-0502 x 115V2 x 50V10
10001000VA, 2 x 115V1000P2-2-0552 x 115V2 x 55V9.09
10001000VA, 2 x 115V1000P2-4-0222 x 115V4 x 22V11.4
10001000VA, 2 x 115V1000P2-4-0282 x 115V4 x 28V8.93
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