P+F Z787 50mA Zener Barrier - 2-Channel DC Safety Barrier with 26.5V Working Voltage and 327Ω Resistance
Price:
negotiable
MOQ:
1 piece
Delivery Time:
on request
Brand:
P+F
Product Description
Product Overview
The Z787 Zener Barrier is a 2-channel DC version safety barrier designed for hazardous area applications. With positive polarity and 50mA fuse rating, this DIN rail mountable device provides reliable intrinsic safety protection for industrial measurement and control systems.
Key Features
- 2-channel DC version with positive polarity
- 50mA fuse rating for enhanced protection
- DIN rail mountable for easy installation
- Working voltage: 26.5V at 10µA
- Maximum series resistance: 327Ω
- Diode return functionality
Technical Specifications
Electrical Specifications
| Parameter | Value |
|---|---|
| Nominal Resistance | 300 Ω |
| Series Resistance | max. 327 Ω (terminals 1, 8) |
| Voltage Drop | 1.2 V + (36 Ω × signal current) |
| Fuse Rating | 50 mA |
| Working Voltage (Supply) | max. 27 V |
| Working Voltage (Measurement) | max. 26.5 V at 10 µA |
Hazardous Area Specifications
| Parameter | Value |
|---|---|
| Maximum Safe Voltage | 250 V |
| Minimum Series Resistance | 301 Ω |
| Voltage | 28 V |
| Current | 93 mA |
| Power | 650 mW |
Environmental & Mechanical
| Parameter | Value |
|---|---|
| Ambient Temperature | -20 to 60 °C (-4 to 140 °F) |
| Storage Temperature | -25 to 70 °C (-13 to 158 °F) |
| Relative Humidity | max. 75% (without condensation) |
| Degree of Protection | IP20 |
| Dimensions (W×H×D) | 12.5 × 115 × 116 mm |
| Weight | approx. 150 g |
Certifications & Approvals
ATEX
IECEx
FM Approval
UL Approval
TÜV
Connection Details
| Area | Terminals |
|---|---|
| Hazardous Area | terminals 1, 2; 3, 4 |
| Safe Area | terminals 5, 6; 7, 8 |
| Core Cross Section | max. 2 × 2.5 mm² |
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
SC Automation Limited
Location
Unit 1406B 14/F，The Belgian Bank Building, Nos. 721-725 Nathan Road, Mongkok, Kowloon,Hong kong.
Contact Person
Joy chen