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Apem 12166X778 Toggle Switch

This is a four-pole toggle switch with solder lugs, featuring an ON-NONE-ON toggle action. Suitable for various control applications requiring multiple circuit connections and a reliable switching mechanism. It is fully sealed with a matte black finish, IP67 rated for dust and water resistance, making it ideal for high-performance environments including industrial, military, or outdoor uses. The switch has a brass actuator with black chrome plating, solid rivet contacts that are gold plated for oxidation resistance, and an epoxy-sealed case for enhanced durability and performance under harsh conditions.

Authorized Distributors
Source:Newark
Part No:12166X778
Stock:84
Inv Date:05-28-2026
Price: Unit price: $250.61
Buy/RFQ:
Source:DigiKey
Part No:12166X778
Stock:30
Inv Date:05-28-2026
Price: Unit price: $210.13
Buy/RFQ:
Part No:12166X778
Stock:46
Inv Date:05-29-2026
Price: Unit price: $203.36
Buy/RFQ:
Part No:12166X778
Stock:0
Inv Date:05-28-2026
Price: Unit price: $235.22
Buy/RFQ:
Part No:12166X778
Stock:48
Inv Date:05-28-2026
Price: Unit price: $201.53
Buy/RFQ:
Part No:12166X778
Stock:48
Inv Date:05-28-2026
Price: Unit price: $201.53
Buy/RFQ:

Apem 12166X778 Toggle Switch Specifications:

  • Electrical Ratings: 2A 250VAC, 4A 125VAC, 4A 28VDC, minimum load 10mA 50mV
  • Initial Contact Resistance: 10 mΩ max.
  • Insulation Resistance: 1,000 MΩ min. at 500VDC
  • Dielectric Strength: 1,000 Vrms between terminals, 2,000 Vrms between poles/frame
  • Electrical Life: 20,000 cycles at 2A 250VAC; 10,000 cycles for specific functions
  • Material: Case - diallylphthalate, actuator - brass with black chrome, contacts - gold-plated silver/nickel alloy
  • Sealing: Fully sealed to IP67, protected by two O-rings, panel mounted with hex nut
  • Operating Temperature: -40°C to +85°C
  • Shock Resistance: 50g for 11ms
  • Vibration Resistance: 10-500 Hz at 10g
  • Panel Thickness: 3mm to 8mm
  • Torque: 1.5 Nm max.
  • Bushing Diameter: 11.9 mm (15/32 inch)

Buy the APEM Series 12000X778 Toggle Switch: 12166X778

Purchase the APEM 12166X778 toggle switch online today and enjoy a reliable, fully sealed switch with four poles, solder lug terminals, and IP67 protection. Designed for industrial and military applications, it features high durability, precise switching, and corrosion-resistant gold-plated contacts. The robust construction includes a brass actuator, epoxy-sealed case, and multiple circuit options, making it suitable for controlling complex systems in harsh environments. Secure your equipment with a top-quality switch engineered for long-lasting performance and safety.

Get APEM 12166X778 toggle switch today—built for durability and high performance in demanding environments.

Frequently Asked Questions

Where can I buy Apem 12166X778?

You can click on the BUY or RFQ button to purchase 12166X778 from an authorized Apem distributor.

How do I troubleshoot issues or seek technical support for part 12166X778?

You can download the 12166X778 datasheet or visit the Apem website for support.

Who is the manufacturer of 12166X778?

Apem

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