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Isolation Transformer

SERVOMAX has a wide range of ISOLATION TRANSFORMERS which reduce the effects of power Line problems like noise, spikes, surges, transients and neutral, to a minimum.

Power generation in our country, is no doubt good and availability of continuous power is Certainly better, but the stringent requirements of the sophisticated equipment being used today underlines necessity of clean power.

Owing to inductive loads, capacitive loads, SMPS loads, electronic ballasts and with PWM Switching systems, the present AC Power lines are superimposed with dangerous spikes, Surges, transients, sags and RFI noise and harmonics.

As a result failure rates of electronic equipment are on the rise. Without adequate protection, All electronic equipment is at a great RISK.

Usually the failures are not seen right away. Repeated stress from normal electrical transients weaken components and lead to shortening of component life. Line noises like spikes, surges, transients and so on definitely cause stress on semi conductor components. And Machine Systems experience catastrophic program and software failures, extensive damage to PLC’s and storage media, leading to heavy losses of production, data and man-hours.

With SERVOMAX ISOLATION TRANSFORMERS all types of electrical noises, particularly common mode noises, spikes, surges, and transients can be eliminated.








415V AC 3-Ph

415 V AC 3-Ph

150VA 3-Ph and up to 500 KVA 3-Ph

415V AC 3-Ph

220 V AC 3-Ph

150VA 3-Ph and up to 500 KVA 3-Ph

230 V AC 1-Ph

230 V AC 3-Ph

150VA 1-Ph and up to 50 KVA 1-Ph

230 V AC 1-Ph

110 V AC 3-Ph

150VA 1-Ph and up to 50 KVA 1-Ph


System Connections

Delta / star or Star / Delta


1:1 and 2:1


Better than 3.5 %

Power Factor

0.75 lag to 0.75 lead

Di-electric strength

2500 V AC for 120 Sec

Insulation resistance

More than 1000 Mega Ohms

Coupling Capacitance

0.1 PF for 100 db

Leakage Current

Less than 20 micro amps

Common Model attenuation

100 db

Construction Standards

As per IS 2026 part 1 &11

Isolation Transformer