Shakti Switchgears

EasyPact TVS contactor 3 poles for motor applications up to 40A 22kW@440V. It provides a 220V 50Hz AC coil, without built-in auxiliary contacts, power and control connections by screw clamp terminals. 75mm width for standard operating rates up to 1200 cycles per hour. It procures standard reliability and durability with 0.9 Mcycles electrical durability AC-3 and 5 Mcycles mechanical durability. It can cover -5°C to 55°C working temperature and mounted by DIN-rail, No derating up to 3000m altitude. Multi-standards certified (IEC, CCC, EAC) and Green Premium compliant (RoHs/Reach)

A26 contactors are mainly used for controlling 3-phase motors and generally for controlling power circuits up to 690 V AC or 220 V DC. The contactors can also be used for many other applications such as isolation, capacitor switching, lighting. The A... series 1-stack 3-pole contactors are of the block type design. - Main poles and auxiliary contact blocks: 3 main poles, 1 built-in auxiliary contact, front and side-mounted add-on auxiliary contact blocks - Control circuit: AC operated with laminated magnet circuit - Accessories: a wide range of accessories is available.

Here’s a detailed description of Havells’s HGS series contactors — what they are, how they work, and what to expect. I’m also using two example HGS contactors — [Havells 12A 3-Pole HGS Contactor]() and [Havells HGS 100 3‑Pole 100A Contactor]() — to help describe typical features and range.

---

What is HGS — Overview

HGS is a series of power magnetic contactors manufactured by Havells, used to switch and control AC loads (motors, compressors, industrial machines, heavy equipment, etc.).

The HGS series covers a wide current-rating range — from small contactors (e.g. 9 A / 12 A) up to heavy-duty ones rated 800 A.

They come as typically 3-pole contactors, though there are variants/spinoffs for different pole/coil types (AC contactors, DC coil contactors, capacitor-duty versions, etc.).

---

Key Design & Specification Features

Common attributes across the HGS series (though specific values vary by model):

Feature / Attribute Description / Typical Value

Coil types / voltage options Many HGS contactors offer a “universal coil” — multiple coil-voltage variants (e.g. 240 V AC, 415 V AC, 24 V AC/DC, etc.) for flexibility.
Duty / Utilization categories Rated for heavy-duty switching (AC-3 duty, often also suitable for AC-4 / “inching & plugging” duty — e.g. crane-duty, frequent start/stop tasks) when properly selected.
Terminals & Protection Terminals are “finger-proof” (IP20 protection) to reduce risk of accidental contact.
Construction / Durability Designed for high electrical and mechanical life, with high endurance — capable of many switching cycles.
Mounting and installation Many HGS contactors (especially smaller ones) support DIN-rail mounting; larger ones may use other mounting.
Auxiliary contacts & features Some models provide auxiliary contact(s) (NO or NC) for control circuits; some frames support additional accessories (e.g. arc-chutes, interlocks, overload relays).
Voltage & load capacities Depending on model — e.g. the 12 A version handles modest loads; larger HGS units go up to several hundred amps for heavy industrial loads.

The Havells 12A 3-Pole HGS Contactor — a lighter duty contactor, suitable for smaller motors or modest loads requiring ~12 A switching. Its coil can come in multiple voltage options, and it supports 3-pole switching. This makes it useful for small machines, pumps, or lighting/control circuits.

On the opposite end, the Havells HGS 100 3-Pole 100A Contactor (or other high-current variants) are designed for heavy loads — large motors, industrial machinery, compressors, or other heavy-duty applications. These higher-rated contactors provide robustness, high switching capacity, and often support auxiliary contacts and accessories for advanced control.

This illustrates how HGS series spans from light duty (household/machine control) to heavy industrial use.

---

Why HGS Is Widely Used / What to Expect

Flexibility — with multiple coil-voltage options and a wide current range, HGS contactors can be selected to match a large variety of applications (from small motors to heavy industrial machines).

Reliability & Safety — designed with IP-protected terminals, robust mechanical/electrical life, proper insulation — suitable for industrial and even harsh environments.

Standards-compliant — HGS goods comply with relevant switching device standards (e.g. IS/IEC 60947-4-1).

The Mitsubishi S-T10 contactor is a 3-pole magnetic contactor from the MS-T series, rated for motor control applications up to 4kW (at 380-440V AC) and a rated operational current of 9A (AC-3 duty). It is a compact, reliable device for industrial use.