What is the minimum order quantity for the AT-SY7?

MOQ is 10–50 pieces for stocked models and 100–500 pieces for OEM or branded production, depending on the configuration and packaging. Trial orders are accepted for first-time buyers.

What is the lead time for AT-SY7?

Stocked units ship in 3–7 working days. Production orders take 15–20 days after deposit and artwork approval; peak season (August–November) may extend to 25 days. The schedule is confirmed in writing on the proforma invoice.

Can the AT-SY7 be customised with our brand?

Yes. We support OEM with your logo, housing colour, retail packaging and manual, and ODM with firmware and app-interface changes for Wi-Fi and 4G models. Provide artwork and target market requirements for evaluation.

Home › Products › Smart Switches › AT-SY7 3-Phase 4G Smart Switch — 400 V, 63 A

Smart Switches · Ref. AT-SY7

AT-SY7 3-Phase 4G Smart Switch — 400 V, 63 A

Three-phase 4G switch with phase-loss, phase-sequence and unbalance protection — supports prepaid cut-off for tenant sub-metering and machinery.

4G full-network cellular, plug and play — no gateway required
Phase loss / phase sequence / three-phase unbalance protection
Prepaid power cut-off for tenant sub-metering and sub-let supply
Auto-reclosing, operation logs and power-failure alarms
Custom API configuration for platform integration

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Buyer information

Model / SKU: AT-SY7 (ref. at-sy7)
MOQ: 10–50 pcs for stocked models · 100–500 pcs for OEM/branded runs
Lead time: 3–7 working days ex-stock · 15–20 days for production orders
Sample: Available in 3–5 days by courier; sample cost refundable on the first bulk order
Certification: CE, RoHS, Tuya compatible
OEM / ODM: Logo, housing colour, packaging and manual; firmware & app changes for Wi-Fi/4G models
Trade terms: FOB Ningbo / Shanghai · CIF, DDP or EXW on request
Payment: T/T 30% deposit, balance before shipment · Alibaba Trade Assurance · PayPal for samples

Indicative terms for export orders. Final MOQ, price and schedule are confirmed in the quotation — reply within 24 hours.

Specifications
Rated voltage	AC 400 V, 50/60 Hz (3-phase)
Rated current	1–63 A adjustable
Poles / width	3P (72 mm)
Metering accuracy	Class 1.0
Communication	4G
Ambient / protection	−25 °C to +70 °C · IP20
Installation	35 mm standard DIN rail

Typical applications: Industrial workshops, agricultural irrigation and machinery, tenant sub-metering, cold storage and HVAC power control.

Further reading 4G or Wi-Fi? Choosing the Right Remote Control Switch for Your Project→Smart Breaker vs Smart Relay vs Contactor: Which One Controls Your Load Best?→How to Switch a Water Pump Remotely When There Is No Wi-Fi→

Bulk Pricing & OEM Options Available

Tell us your quantity and market — MOQ is flexible for first orders, and samples ship worldwide.

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AT-SY7 3-Phase 4G Smart Switch — 400 V, 63 A

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Bulk Pricing & OEM Options Available