ABB UA26-30-10RA Capacitor Switching Contactor – Specs, Ratings & Availability in India

Why this FAQ?
These FAQs focus on practical details—application, ratings, installation, compliance, and sourcing—helping engineers and buyers assess suitability for capacitor bank switching.

[faq question=”What is the ABB UA26-30-10RA capacitor switching contactor used for?”]

The ABB UA26-30-10RA is a 3-pole capacitor switching contactor designed for applications where inrush currents can exceed 100 times the nominal RMS current. It comes with pre-mounted damping resistors to limit current peaks during capacitor bank energization. Typical use is in power factor correction panels and capacitor switching circuits.

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[faq question=”What is the rated control voltage of the UA26-30-10RA?”]

The coil is rated for 220–230 V AC at 50 Hz and 230–240 V AC at 60 Hz. Average pull-in power is 120 V·A (50 Hz) / 140 V·A (60 Hz), while holding power is about 12 V·A.

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[faq question=”What are the capacitor switching capacities at different voltages?”]

At 230/240 V and 40 °C, the unit switches up to 12.5 kvar; at 400/415 V and 40 °C, up to 22 kvar; at 440 V, up to 24 kvar; and at 500/550 V, up to 30 kvar. Capacitor rating reduces with higher ambient temperatures (e.g., 70 °C: 9 kvar at 230 V, 15.5 kvar at 400 V).

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[faq question=”What standards and certifications does this contactor meet?”]

The UA26-30-10RA complies with IEC/EN 60947-1 and IEC/EN 60947-4-1 standards. Rated insulation voltage is 1000 V, impulse withstand voltage is 8 kV, and degree of protection for terminals is IP20. UL/CSA compliance is also noted with 600 V Ui.

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[faq question=”What is the electrical durability of the UA26-30-10RA?”]

The electrical durability is 250,000 operations for Ue ≤ 440 V and 100,000 operations for 500–690 V. The maximum electrical switching frequency is 240 operations per hour.

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[faq question=”How should this contactor be installed?”]

It can be mounted on DIN rail (TH35-15 / TH35-7.5 per IEC 60715) or with two M4 screws. Terminals are screw-type with cable clamps, IP20 protected, and supplied in open position for easier wiring. Capacitors must be fully discharged (≤50 V residual) before re-energizing.

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[faq question=”What are the physical dimensions and weight?”]

The UA26-30-10RA measures 54 mm wide, 126.3 mm deep, and 120 mm high, with a net weight of 0.71 kg. This compact block-type design is suitable for panel mounting.

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[faq question=”Where can I source the ABB UA26-30-10RA in India?”]

Shansen Enterprises is an authorized ABB channel partner offering the UA26-30-10RA with pan-India delivery. Quick quotes and ordering are available via WhatsApp support.

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