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Pepperl+Fuchs Z728 Zener Barrier

A commonly used Zener barrier designed for intrinsically safe applications, capable of transmitting both analogue and digital signals in a bi-directional manner. Suitable for positive polarity signals, it features a single channel and mounts easily on DIN rails, complying with EEx ia IIC standards. It is suitable for hazardous zones 0, 1, 2, with protection ratings including IP20. The device includes a series resistance max. 327 Q, fuse rating 50 mA, working voltage up to 26.5 V at 10 pA, and dimensions of 12.5x115x110mm. It meets IEC and ATEX certifications for use in explosion-proof environments.

Authorized Distributors
Source:Newark
Part No:Z728
Stock:173
Inv Date:06-08-2026
Price: Unit price: $261.49
Buy/RFQ:
Part No:Z728
Stock:18
Inv Date:06-08-2026
Price: Unit price: $266.72
Buy/RFQ:

Pepperl+Fuchs Z728 Zener Barrier Specifications:

  • Type: DC version, positive polarity
  • Nominal resistance: 3009
  • Series resistance max.: 327 Q
  • Fuse rating: 50 mA
  • Working voltage: max. 26.5 V at 10 pA
  • Connection terminals: hazardous area 1,2; safe area 7,8
  • Dimensions: 12.5x115x110mm
  • Protection rating: IP20
  • Ambient temperature: -20 to 60°C
  • Storage temperature: -25 to 70°C
  • Relative humidity: max. 75% without condensation
  • Mechanical: modular terminal housing, DIN rail mount
  • Approval: IECEx, ATEX, UL, FM
  • Certifications: ATEX BAS 01 ATEX 7005, TUV 99 ATEX 1484 X
  • Voltage: max. 26.9 V supply loop, safety voltage up to 250 V
  • Current: max. 93 mA
  • Power: 650 mW
  • Construction: modular terminal housing compliant with EN 60715
  • Markings: [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma]
  • Hazardous zones: 0, 1, 2

Buy the Pepperl+Fuchs Z728 – Reliable Zener Barrier for Industrial Applications

Enhance your safety system with the Pepperl+Fuchs Zener Barrier, designed for intrinsically safe operation in hazardous zones. Its DIN rail mounting, positive polarity, and compliance with IECEx and ATEX standards make it ideal for industrial applications. Suitable for zones 0, 1, and 2, it offers robust protection with a compact design measuring 12.5x115x110mm. The barrier supports analogue and digital signals, with a maximum working voltage of 26.5 V, and features a series resistance of up to 327 Q. Trusted by industries worldwide, this product guarantees compliance and safety in explosive atmospheres.

Buy Pepperl+Fuchs Z728 now and ensure safe, reliable signal transmission in hazardous industrial environments with certified explosion-proof protection.

Frequently Asked Questions

Where can I buy Pepperl+Fuchs Z728?

You can click on the BUY or RFQ button to purchase Z728 from an authorized Pepperl+Fuchs distributor.

How do I troubleshoot issues or seek technical support for part Z728?

You can download the Z728 datasheet or visit the Pepperl+Fuchs website for support.

Who is the manufacturer of Z728?

Pepperl+Fuchs

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