Our Products
Two focused categories with model data, selection support and order-specific document checks.
Micro Switches
Snap-action micro switches for appliances, automotive and industrial control. Available models, documents and OEM requests are confirmed through the authorized ZHJ distribution channel.
View seriesMCCBs & Circuit Protection
NY brand molded case circuit breakers and related switching devices for standard, residual-current, electronic, smart and new-energy applications.
View seriesAll Series at a Glance
Micro Switch DMS01
General-purpose 16A micro switch (DMS01): compact, sensitive actuation, 50,000-cycle life, CQC and CB certified for appliances, instruments and automation.
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Micro Switch DMS02
General-purpose 10A micro switch (DMS02): compact, sensitive actuation, 50,000-cycle life, UL and ENEC certified for appliances, instruments and automation.
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Micro Switch DMS03
Compact 3A micro switch (DMS03) with 200,000-cycle mechanical life for low-power precision control in office equipment, appliances and instruments.
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Waterproof Micro Switch DMS05 (IP67)
IP67 waterproof micro switch (DMS05) rated 10A 250VAC with 1,000,000-cycle mechanical life for automotive, outdoor and wet-environment applications.
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Waterproof Micro Switch DMS06 (IP67)
IP67 waterproof micro switch (DMS06) rated 10A 250VAC with -40°C to +125°C operating range, listed under UL file E303918.
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Waterproof Micro Switch DMS07 (IP67)
IP67 waterproof micro switch (DMS07) rated 16A 250VAC — the high-current option in the waterproof range for appliances and outdoor equipment.
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Waterproof Micro Switch DMS08 (IP67)
IP67 waterproof micro switch (DMS08) for low-voltage DC control — 1A at 12/24/36VDC for sensors and signal circuits.
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Waterproof Micro Switch DMS09 (IP67)
IP67 waterproof micro switch (DMS09) for 1A DC signal circuits with pre-wired lead options for automotive and outdoor sensors.
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Waterproof Micro Switch DMS11 (IP67)
IP67 waterproof micro switch (DMS11) for 0.1A 12VDC micro-signal switching — the most sensitive option in the waterproof range.
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STM6RT Dual-Adjustable MCCB
STM6RT thermal-magnetic MCCB with dual-adjustable thermal (0.8–1.0 In) and magnetic (5–10 In) settings — listed frames from 125A to 1250A.
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STM6 Thermal-Magnetic MCCB
STM6 thermal-magnetic MCCB for distribution and motor protection, covering 10A to 2000A across 125A to 2000A frames with C, S, M and H breaking-capacity options.
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STM6E Electronic MCCB
STM6E electronic MCCB with adjustable 0.4–1.0 In current settings, 160A to 2000A frames, 3P/4P configurations and Icu up to 100kA at AC400V.
View detailsSTMRT-1250 Dual-Adjustable MCCB
STMRT-1250 dual-adjustable thermal-magnetic MCCB for AC400V distribution, covering 16A to 1250A with 3P/4P configurations and C, S, M and H breaking types.
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STM6LY Residual Current MCCB
STM6LY adjustable residual-current MCCB combining overload, short-circuit and earth-leakage protection across 125A to 1250A frames, with 2P, 3P and 4P options.
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STM6LY-250M R Adjustable Residual Current MCCB
STM6LY-250M/R adjustable residual-current MCCB for AC400V circuits, combining thermal-magnetic, short-circuit and earth-leakage protection with selectable settings.
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STM6LE-250 Residual Current Protection MCCB
STM6LE-250 electronic residual-current MCCB for AC400V distribution: 50A to 1250A, 4P, remote control, prepayment and bilingual display functions.
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STM6LE-160 GZ IoT Auto-Reclosing MCCB
STM6LE-GZ IoT auto-reclosing residual-current MCCB for AC400V networks: 40A to 1250A, remote control, energy metering, fault location and PV reclosing.
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STM7LE-250 Residual Current Protection MCCB
STM7LE-250 electronic residual-current MCCB for AC400V networks, covering 50A to 800A in 4P configurations with communication, metering and prepayment functions.
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STM6EY Electronic LCD MCCB
STM6EY electronic MCCB with LCD monitoring for AC400V distribution, adjustable 32A to 1250A settings, 3P/4P options and Icw up to 20kA for one second.
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STM6ELY-250 Electronic Residual LCD MCCB
STM6ELY-250 electronic residual-current MCCB with LCD and remote communication, covering 40A to 1000A in 4P configurations for AC400V systems.
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STM6EY-250MP3 JLY Smart Four-Remote MCCB
STM6EY-MP3/JLY smart MCCB with four-remote monitoring and control functions, adjustable 125A to 800A ratings, 3P/4P options and response time within one second.
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STM6ZY-250M IoT Smart MCCB
STM6ZY-250M IoT smart MCCB for AC400V networks: adjustable 50A to 1000A ratings, 3P/4P, four-stage protection, metering and communication interfaces.
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STM6ZY-400MP IoT Circuit Breaker
STM6ZY-400MP IoT MCCB for AC400V smart distribution, combining adjustable electronic protection, energy metering, remote control and communication interfaces.
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STM7-320 High-Voltage New Energy MCCB
STM7 high-voltage new-energy MCCB for AC380V to AC1140V systems, covering 16A to 1250A across 320A, 630A and 1250A frames with 3P construction.
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STM7DC-630 New Energy DC Circuit Breaker
STM7DC new-energy DC circuit breaker for DC750V to DC1500V solar, battery-storage and DC distribution systems, covering 100A to 1600A with 2P, 3P and 4P options.
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STM7E-125 Three-Phase Unbalance Changeover Switch
STM7E-125 intelligent changeover switch for correcting three-phase unbalance in AC400V/AC220V networks, with 125A to 250A model ratings and 8–10ms switching.
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STM7E-250 ZB Multi-Function Changeover Switch
STM7E-250 ZB multi-function changeover switch for three-phase unbalance correction: 125A to 250A, metering, remote control and early-warning functions.
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ECB-250 Prepayment MCCB
ECB prepayment MCCB for AC230V/AC400V utility distribution, covering 16A to 1600A with cost control, remote operation and 3P construction.
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DC6 Series Remote IoT Operation Module
DC6 remote IoT operation module for 125A to 2000A breaker frames, supporting DC24V, AC230V and AC400V control with RS485 communication and remote operation.
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