Vanma distribution-box smart lock
Vanma passive locks
Supplier：JWM · Shenyang, Liaoning
For power-industry interlock scenarios, with over-voltage, over-current and electrostatic protection.
- Origin
- Shenyang, Liaoning · China
- Protection
- Over-voltage · over-current · ESD
- Typical uses
- Distribution rooms, box substations, substations
- HS code
- 830140 （Reference classification by this site; customs determination prevails）
Market signal
Kazakhstan imported $13.7 M of HS 8301 from China in 2025, +20% on 2024
Kazakhstan imported $30.9 M of HS 8301 in 2025, +18% on 2024
Source: Kazakhstan customs and China customs, normalised by this site; data as of 2026-09-23。
Supplier
JWM
Shenyang JWM Hi-Tech Development Co., Ltd. · Shenyang, Liaoning · 2001
Twenty-plus years of traceability built on auto-identification: guard-tour readers, cloud patrol, GPS/BeiDou patrol and passive smart locks. Whether a patrol was completed, which lock was opened when and by whom — the system keeps the record. Sold in 128+ countries; overseas customers include G4S, Securitas and Bank of China.
- Export markets 128+ countries
- Rating IP67 readers / IP68 locks
- Warranty 3 years on hardware
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