Introducing the new products of Swallow Electric.

new product

Multi Transformer with LED M-EL series

It has an energized indication, and by adding a ±20V terminal on the input side, one transformer can handle six different input voltages.

Power Transformer with LED SC-EL series

Single-phase, double-winding transformer with electrostatic shielding and energized indication.

Multi-transformer M series

By adding ±10V (±20V) terminals on the input side, a single transformer can handle six different input voltages.

CL series Power transformer with service outlet (LED lighting + built-in circuit breaker)

Power transformer CL series

※Patent applied

Single phase, double winding: Electrostatic shielding, grounding terminal, energized indication

Energized indication by blue LED

This is a power transformer for use in a panel with a built-in output outlet (AC100V), ultra-bright LED, and circuit breaker.

If you use a power transformer (CL series) with a service outlet, you can reduce the number of parts in the board and save man-hours.

Power transformer
Product Features of Power transformer
Power transformer Example of use


PI-E series Power transformer (Push-in type terminal block)

For faster and easier wiring……Just plug it in and you’re ready to wire.

Transformer with push-in terminal block

※Patent applied

Single phase, double winding: Electrostatic shielding, grounding terminal, energized indication

Energized indication by blue LED

Single wires and bar terminals can be connected by simply plugging them in, and IV wires can be connected by using a flathead screwdriver and pressing down on the spring while plugging them in.

Power transformer PI21-E

200・220V-100・110V-E Single phase, double winding

Power transformer PI41-E

380・400・440V-100・110V-E Single phase, double winding

Power transformer
Product Features of Power transformer


M-EL series Multi transformer with LED (energized display, multi-input, screw-up type terminal block)

Multi transformer M-EL series

By adding an energized indication and a ±20V terminal on the input side, a single transformer can handle six different input voltages.

Single phase, double winding: Muiti tap, Electrostatic shielding, grounding terminal, energized indication

Energized indication by blue LED

Multi transformer M21-EL 200V series

Primary side: 0, 190V, 200V, 210V, 220V, 230V, 240V

Secondary side: 0, 100V, 110V, 120V, E, EARTH GROUND, Energized indication

Capacity: 200VA~5KVA

Multi transformer M41-EL 400V series

Primary side: 0, 190V, 200V, 210V, 220V, 230V, 240V

Secondary side: 0, 100V, 110V, 120V, E, EARTH GROUND, Energized indication

Capacity: 200VA~5KVA

Multi transformer M42-EL 200V series

Primary side: 0, 380V, 400V, 420V, 440V, 460V, 480V

Secondary side: 0, 200V, 220V, 240V, E, EARTH GROUND, Energized indication

Capacity: 200VA~5KVA

Power transformer
connection diagram
connection diagram


M series Multi transformer (multi-input, screw-up type terminal block)

Multi transformer M-EL series

By adding a ±10V (±20V) terminal on the input side, a single transformer can handle six different input voltages.

Single phase, double winding: Muiti tap, Electrostatic shielding, grounding terminal

Multi transformer M21-E 200V series

Primary side: 0, 190V, 200V, 210V, 220V, 230V, 240V

Secondary side: 0, 100V, 110V, 120V, E, EARTH GROUND

Capacity: 200VA~5KVA

Multi transformer
connection diagram
connection diagram


SC-EL series Power transformer with LED (energized display, screw-up type terminal block)

Power transformer with LED (energized display, screw-up type terminal block)

Energized indication by blue LED

Single phase, double winding: Electrostatic shielding, Energized indication

Power transformer SC21-EL 200V series

Primary side: 0, 200V, 220V

Secondary side: 0, 100V, 110V, E, Energized indication

Capacity: 100VA~10KVA

Power transformer SC41-EL 400V series

Primary side: 0, 380V, 400V, 440V

Secondary side: 0, 100V, 110V, E, Energized indication

Capacity: 100VA~10KVA

Power transformer SC42-EL 400V series

Primary side: 0, 380V, 400V, 440V

Secondary side: 0, 200V, 220V, E, Energized indication

Capacity: 100VA~10KVA

Single phase
double winding
connection diagram