Emergency Power Off Buttons for Industrial Control

Redundant safety, millisecond response, and global certifications — integrate the last line of defense into your cabinet with LINKWELL EPO.

  • ≤ 20ms trip
  • -40°C to +85°C
  • IP69K / IK10
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emergency power off buttons

Engineered for fail‑safe disconnection

Designed to meet IEC 60947‑5‑1, EN ISO 13850, and UL 508 – direct opening action with forcibly guided contacts.

Positive opening

  • NC contacts forced open by non‑resilient mechanism
  • No spring‑return – ensures break even if welded
  • Silver alloy contacts, self‑cleaning

Contact variants

  • 1NC / 1NO + 1NC / 2NC
  • gold‑plated for dry circuits
  • 600V AC / 220V DC ratings

Environmental sealing

  • IP66, IP67, IP69K (high‑pressure washdown)
  • front panel sealing, corrosion‑resistant metal
  • IK10 impact resistance (20 J)

Actuator styles

  • Mushroom Ø30 / Ø40 · flush · key‑release
  • Twist‑to‑release / pull‑to‑release
  • Illuminated (LED 24V) versions

Emergency Power Off Buttons Type

Emergency Power Off Buttons for outdoor applications feature waterproof and weatherproof designs. Built with sealed housings and corrosion-resistant materials, they ensure reliable performance in industrial, marine, and harsh environmental conditions, providing immediate safety shutdown when needed.

mushroom head push buttons

Mushroom Head Push Buttons

Large, easy-to-hit surface

Twist-to-reset or pull-to-reset mechanism

Best for high-traffic industrial areas

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emergency power off buttons

Flush or Low-Profile EPO Buttons

Requires authorized personnel to reset

Adds extra safety layer in sensitive applications

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waterproof push button switch 12v

waterproof push button switch 12v

Less likely to be triggered accidentally

Suitable for control panels with space constraints

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Application of Emergency Power Off Buttons in Different Industries

Data Centers

EPO buttons in data centers provide instant power shutdown during electrical faults or fire hazards. They protect servers, networking equipment, and staff by cutting electricity immediately, minimizing equipment damage, preventing overheating, and ensuring compliance with safety and fire regulations.
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Manufacturing & Industrial Plants

In factories, EPO buttons stop machinery instantly during emergencies, preventing accidents, injuries, and equipment damage. They are critical in high-speed production lines, chemical processing, and automated assembly systems, ensuring workplace safety while maintaining regulatory compliance.
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Healthcare Facilities

Hospitals and laboratories use EPO buttons to shut off medical equipment during electrical faults or emergencies. They safeguard sensitive devices, prevent fires, and protect patients and staff, particularly in operating rooms, imaging labs, and areas with critical life-support systems.
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Technical specifications – LK‑EPO series

Designed to meet IEC 60947‑5‑1, EN ISO 13850, and UL 508 – direct opening action with forcibly guided contacts.

Parameter 22mm Compact 30mm Heavy Duty
Rated insulation voltage (Ui) 600V AC 1000V AC
Thermal current (Ith) 10 A 16 A
Utilization category AC‑15 / DC‑13 AC‑15 / DC‑13
Contact blocks 1NC / 1NO + 1NC / 2NC 2NC / 3NC + optional NO
Positive opening force > 50 N > 80 N
Mechanical endurance 1,000,000 cycles 500,000 cycles (heavy duty)
Protection class IP66 / IP67 / IP69K IP66 / IP67 / IP69K
Ambient temperature -40°C … +70°C -40°C … +85°C
Terminal type Screw / Spring‑cage Screw / Ring tongue

FAQ of 12v Push Button Switch

Does the EPO comply with positive opening per IEC 60947‑5‑1?
Yes, all LK‑EPO contacts use direct opening action – the NC contacts are forcibly opened by the actuator, independent of springs. Test certificates available.
Contacts are silver alloy rated for both, but we recommend gold‑plated for very dry/low voltage (< 5V).
Yes, with integral LED 24V AC/DC, also available with built‑in transformer for 110‑230V.
Standard 22.3mm and 30.5mm mounting holes. Adapter rings available for other standards.
We provide matching cable management systems – see our CMS series. All from one source.
MOQ 100 pcs. Custom laser marking with your part number.

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