LT Switchgear — ACB, MCCB, MPCB & Contactors
Air circuit breakers, moulded-case and motor-protection breakers, contactors and overload relays for incomers, feeders and motor circuits.
Icu / Ics to fault levelAC-1 / AC-3 dutyFixed / draw-out ACB
LV SWITCHGEAR & PROTECTION
LV Switchgear & Protection Devices
Air and moulded-case breakers, contactors, protection relays and surge protection — selected against your fault level and coordinated so the right device trips first.
OVERVIEW
Switchgear selection is a coordination exercise, not a catalogue pick. We work from the fault level at the point of installation, choose breaking capacity and utilisation category to match, and set discrimination so a downstream fault does not take out the incomer.
We supply loose switchgear against a schedule, or fit and wire it inside panels we build. Agricultural pump-set starters and protection run on the same line card.
THE LINE-UP
What we design, build and supply.
Protection & Control Relays
Electromechanical and electronic relays for circuit protection, interlocking and control logic, including motor and phase-fault protection.
Phase failure / asymmetryUnder / over voltageInterposing & interlock
Surge Protection Devices
Transient surge suppression at the incomer and at sensitive sub-boards, protecting drives, PLCs and instrumentation from spikes.
Type 1 / Type 2IEC 61643-11Status indication
Agricultural Power Products
Pump-set starters and protection built for agricultural supply conditions — wide voltage swing, single-phasing and dry-run risk.
Pump-set startersDry-run / phase protectionField-serviceable
Changeover Switches & Isolators
Manual and motorised changeover switches, load-break isolators and on-load switch disconnectors for source selection and safe isolation.
3 / 4-poleMechanical interlockLockable off position
Earth-Leakage & RCD Protection
Residual-current devices and earth-leakage relays with core-balance CTs for personnel and fire protection on distribution circuits.
30 mA / 100 mA / 300 mACore-balance CTAdjustable time delay
PRODUCT PAGES
Explore each product.
IN-HOUSE CAPABILITY
How the work actually gets done.
- Fault-level review and breaking-capacity selection
- Discrimination and cascading study across incomer and feeders
- Type-1 / Type-2 coordination for motor starter combinations
- Surge-protection scheme design across incomer and sub-boards
- Supply against a switchgear schedule, or fitted and wired into our panels
- Replacement, upgrade and spares for installed switchgear
SPECIFICATIONS & STANDARDS
The numbers we build to.
| General rules | IEC 60947-1 |
|---|---|
| Circuit breakers | IEC 60947-2 — Icu / Ics rated to the project fault level |
| Contactors & starters | IEC 60947-4-1, utilisation categories AC-1 and AC-3 |
| Starter coordination | Type-1 or Type-2 to IEC 60947-4-1, as specified |
| Surge protection | IEC 61643-11 — Type 1 and Type 2 SPDs |
| Enclosure protection | IP42–IP54 indoor · IP55 outdoor |
MANUFACTURER LINES
Brands behind this category.
WHAT YOU GET
From enquiry to after-sales.
- Switchgear schedule review and device selection
- Discrimination, cascading and coordination checks
- Supply loose, or fitted and wired inside a Microtech panel
- Site replacement and upgrade of existing switchgear
- Warranty support through the manufacturer channel
FROM THE FLOOR
LV Switchgear & Protection Devices in the field.
COMMON QUESTIONS
Before you enquire.
Do I need Type-1 or Type-2 coordination?
Type-1 permits contactor and starter damage after a short circuit provided there is no hazard outside the enclosure; Type-2 permits only light contact welding, so the starter stays serviceable. Type-2 costs more and is normally specified for critical or hard-to-reach drives. Tell us the duty and we will quote the coordinated combination.
Which surge protection type do I need where?
Type 1 at the origin of the installation where a direct lightning strike is credible, Type 2 at distribution boards feeding sensitive equipment. Many sites need both, coordinated by cable length or a decoupling inductor.
Can I buy switchgear loose, without a panel?
Yes. We supply against your schedule as an authorised channel promoter for the brands listed, so warranty and manufacturer support carry through.
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