Company Overview and Market Positioning

Hangzhou Mashidi Electric Technology Co., LTD, operating under the brand name Mashidi and headquartered in Hangzhou, has positioned itself as a manufacturer of emergency power disconnect switches designed specifically for low-voltage DC power battery systems used in new energy vehicles. The company's strategic focus responds directly to a well-defined industry pain point: low-voltage DC battery systems in new energy vehicles require an accessible emergency power disconnect that can stop power flow quickly, protecting both operators and the electrical systems they depend on.

This narrow, application-specific positioning allows Mashidi to concentrate engineering resources on a single product category rather than spreading capability across unrelated electrical components. The result is a portfolio of 26 emergency power switch products organized across four distinct series—ED, ET, LS, and S—each addressing different current ratings, actuator styles, and feedback requirements.

Differentiated Value Proposition

Mashidi's product line is built around several core differentiators. First is the push-to-stop, pull-to-reset operating mechanism found across the ED and ET series, which allows an operator to instantly interrupt a battery circuit by pressing a mushroom-style pushbutton and just as easily restore power by pulling the actuator back into position. Second, select AB models across the ED, ET, and S series integrate a synchronized micro-switch output, meaning the mechanical act of disconnection is simultaneously communicated as an electrical signal. This status feedback supports real-time emergency stop status reporting, linkage alarm functions, fault interlock protection, and circuit state monitoring—capabilities that go beyond simple mechanical disconnection to strengthen a vehicle's overall safety and intelligent control architecture.

Third, the breadth of the lineup is notable: thermal current ratings span from 80A to 400A, and ingress protection ratings range from IP64 to IP66, giving system integrators flexibility to match a switch to the specific current demands and environmental exposure of a given vehicle platform. Finally, Mashidi states that its products are matched to mainstream lithium battery vehicle original equipment specifications, positioning the switches as drop-in components for existing platform designs rather than requiring custom engineering.

Technical Capabilities That Set the Standard

Across the portfolio, several technical benchmarks recur consistently. Contact voltage (Ue) tops out at 96V DC for most models, while the ET100, ET100-1, LS100 series, and S250AB are rated for 80V DC. Overload interruption capability scales with product tier: the ED400-F-30 and ED400-F-30-AB can rupture overload currents of up to 1,400A at 96V DC, while the 80V DC-rated ET100, ET100-1, LS100 series, and S250AB handle up to 500A. Contact quality is reflected in a typical voltage drop of less than 40mV across new contacts throughout the range, and mechanical durability is rated at 50,000 cycles for standard models, with the S2-250 rated above 50,000 cycles.

Environmental tolerance is also engineered into the design. Most models operate across a temperature range of -50°C to 60°C, while the S2-250 extends this to -40°C to 85°C. Chinese-spec ED150, ED250, and ED400 models carry a storage and transport temperature rating of -50°C to 85°C. Net weight across the catalog ranges from 105g to 436g, reflecting the diversity of current ratings and housing designs within the lineup.

ED Series Emergency Power Switches

The ED Series is positioned for electric forklifts, AGV handling vehicles, sightseeing patrol cars, aerial work platforms, and lithium battery construction machinery. Models such as the ED125-F16, ED150-F16, ED250-F26, and ED400-F-30 use a classic large red mushroom pushbutton for instant cutoff, rated to rupture overload currents that scale from 800A at 96V DC on the 125A-rated models up to 1,400A at 96V DC on the ED400-F-30. The -AB variants, including ED125-F16-AB, ED150-F16-AB, ED250-26-AB, and ED400-F-30-AB, add the synchronized micro-switch for status feedback, with auxiliary contact ratings such as 15A at 24V DC, 10A at 48V DC, and 5A at 96V DC depending on the model. The ED125-X-F16, ED250-X-F36, and ED400-X-F36 substitute a special small red mushroom pushbutton for applications where a more compact actuator is required.

ET Series Emergency Power Switches

The ET Series covers the same core industry applications with or without micro-switch status output. The ET100 and ET100-1 are rated at 80V DC with a 100A thermal current rating, rupturing overload currents up to 500A. The ET350-1-AB and ET350-2-AB step up to a 350A thermal current rating and 96V DC contact voltage, rupturing overload currents up to 1,400A, while adding synchronized micro-switch output for fault interlock and circuit monitoring functions—the ET350-2-AB distinguishes itself with a special oval red mushroom pushbutton.

LS Series Emergency Power Switches

The LS Series, including the LS100/80 and LS100-1/80, uses a special small red pushbutton for compact installations. Both are rated at 80V DC with an 80A thermal current rating, rupturing overload currents up to 500A at 80V DC, and carrying IP64 ingress protection with 139g and 138g net weights respectively.

S Series Emergency Power Switches

The S Series targets electric forklifts, pallet trucks, sightseeing patrol vehicles, aerial work platforms, and lithium battery construction machinery. The S2-250 uses wrench lever operation, where a right rotation connects contacts A-A and B-B and a left rotation disconnects them, with engagement and disconnection torque of 1.5 N/m to 10 N/m. It carries a 250A thermal current rating, ruptures overload currents up to 1,000A at 96V DC, and is rated IP66 per DIN 40050, complying with IEC 60947-5-1 and IEC 60947-5-5 standards. The S250AB offers a press-to-stop, rotate-to-reset mechanism with synchronized micro-switch output, rated 80V DC with an 80A thermal current rating and IP65 protection.

Industry Coverage and Application Scenarios

Mashidi's emergency power switches are adapted across new energy vehicles, electric forklifts, AGV handling vehicles, pallet trucks, sightseeing patrol cars, aerial work platforms, and lithium battery construction machinery. This consistent application coverage across every product line underscores the company's focus on component-level safety control for low-voltage DC battery systems, giving operators across these vehicle categories a manual means of disconnecting power in an emergency while supporting integration into broader vehicle safety and monitoring systems through the AB-series micro-switch feedback.

Conclusion

Across its ED, ET, LS, and S series, Mashidi presents a structured range of emergency power disconnect switches that scale from 80A to 400A thermal current ratings and IP64 to IP66 ingress protection, with optional synchronized micro-switch feedback for vehicles requiring integrated status monitoring. For manufacturers and integrators working with low-voltage DC battery systems in electric forklifts, AGVs, aerial work platforms, and related lithium battery equipment, this breadth of current ratings, actuator styles, and feedback options provides a documented technical basis for matching a switch to specific platform requirements.

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Mashidi Electric