AMF Panel
Subtech AMF panels have protected hospitals, factories, banks, and government infrastructure across India for over 25 years. Automatic. Reliable. Built for Indian conditions.
What is an AMF Panel?
An AMF panel is the device that stands between a power failure and a crisis.
When the grid goes down, the panel detects the outage within milliseconds, sends the start signal to your diesel generator, waits for stable voltage and frequency, and transfers your entire load from mains to generator. When grid power returns, it transfers back and shuts the DG down cleanly after a cool-down period.
No phone calls. No manual switching. No operator standing by at 2am.
For hospitals, server rooms, water pumps, cold storage, ATM networks, and production lines, this is not a convenience. It is a non-negotiable operational requirement.
Subtech has been manufacturing AMF panels since 1998. Every panel leaves our Greater Noida facility load-tested and documented. We use branded components throughout: Schneider, Siemens, and L&T contactors; Deep Sea and ComAp controllers; Omron relays. No substitutions. No compromises on components to hit a price point.
Our panels are specified by NTPC, DMRC, Delhi Jal Board, UP Jal Nigam, and 200+ industrial and government clients who cannot afford to gamble on an untested panel.
Why this matters for your facility
Fully Automatic. No Human Required.
Mains fails. DG starts. Load transfers. Mains returns. Load transfers back. DG stops. The entire sequence runs without a single human action. Your facility stays powered whether your staff is present or not.
Transfer in Under 10 Seconds
From grid failure to energised DG load in under 10 seconds. Well within the hold-up time of hospital UPS systems and data centre infrastructure. Slower panels cost you more than just inconvenience.
Your Generator is Protected Too
Low oil pressure, high coolant temperature, over-speed, and over-crank shutdowns are standard. If your generator develops a fault during an unattended night-time outage, the panel shuts it down before damage occurs.
Remote Monitoring Ready
Standard RS485 Modbus output. Optional GSM, SMS alert, Ethernet, and BMS integration. Monitor your DG status, runtime hours, fault history, and fuel consumption from any location.
Branded Components. Documented and Traceable.
Contactors from Schneider, Siemens, or L&T. Controllers from Deep Sea or ComAp. Relays from Omron. Wiring to IS 8623. Every component is named and traceable. No unbranded substitutes.
Support Across India. Not Just at Point of Sale.
220+ dealers and service partners nationwide. On-site commissioning available. Standard 12-month warranty extendable to 24 months. If you have a problem six months after installation, you can still reach us.
Where Subtech panels are deployed
Hospitals and Nursing Homes
Operating theatres, ICUs, ventilators, and pharmacy cold storage cannot tolerate even a 30-second gap. AMF plus DG is mandatory under most state hospital licensing regulations.
Banks and ATM Networks
RBI mandates uninterrupted ATM operation. A branch DG that requires manual starting is a liability at 3am. Subtech AMF panels ensure the generator fires automatically at any hour without staff intervention.
Factories and Manufacturing Plants
A production-line restart after an uncontrolled power cut costs far more than the panel. Continuous-process industries including food, pharma, and plastics cannot afford the gap.
Telecom Towers and Data Centres
Rural tower sites across India face four to eight hours of grid outage daily. Unattended AMF plus DG is the only viable solution. Our panels run for months without a site visit.
Water Utilities and Pumping Stations
UP Jal Nigam, Delhi Jal Board, and gram-panchayat water schemes use Subtech AMF panels to maintain continuous pumping through grid outages.
Commercial Buildings and Malls
Lifts, fire pumps, common-area lighting, and security systems must run on backup power. AMF ensures compliance with building fire-safety regulations.
Standard AMF Panel Ratings
Built to order. Non-standard ratings, marine-grade finishes, and custom controllers available on request.
Light Commercial AMF
For ATM kiosks, small clinics, retail stores, and 25 to 125 kVA DG sets. Single ACB or MCCB changeover. Compact wall-mount enclosure available.
Get quoteMid-Range Industrial AMF
For factories, mid-sized hospitals, hotels, and 160 to 500 kVA DG sets. Twin MCCB or ACB. Floor-mount enclosure with anti-condensation heater standard.
Get quoteHeavy Industrial AMF
For large plants, hospitals, and data centres running 750 to 2000 kVA DG sets. Twin air circuit breakers with motorised changeover. Supplied to NTPC and DMRC installations.
Get quoteSynchronising AMF for Multiple Generators
For parallel operation of two to four DG sets with automatic load sharing. Built around Deep Sea 8610 or ComAp InteliGen. Used where redundant generator plants are required with no single point of failure.
Get quoteTechnical Specifications
| Voltage Rating | 415V plus or minus 10%, 3-phase 4-wire |
| Frequency | 50 Hz plus or minus 5% |
| Current Ratings | 63A to 2500A standard |
| Short Circuit Withstand | 25 / 35 / 50 / 65 kA selectable |
| Transfer Time Mains to DG | Under 10 seconds |
| Transfer Time DG to Mains | Under 2 seconds, programmable |
| DG Controller | Deep Sea DSE 7220 / 7320 / 7420 standard. ComAp on request |
| Enclosure | CRCA steel, powder-coated RAL 7032, IP42 standard, IP54 and IP65 optional |
| Standards | IS 8623, IEC 61439-1, CE-marked components |
| Communication | RS485 Modbus standard. GSM, SMS, Ethernet, BMS optional |
| Warranty | 12 months standard, extendable to 24 months |
Frequently asked questions
What is the difference between an ATS panel and an AMF panel?
How fast does the AMF panel transfer load?
What size of generator can the AMF panel handle?
Do you supply the DG with the AMF panel?
What is the lead time for a custom AMF panel?
Can the AMF panel be monitored remotely?
Ready to spec your auto mains failure panel?
Share your single-line diagram, load list or three months of electricity bills. Our engineers will respond with a custom BOM, quote and delivery schedule within 24 hours.