Description
The Zener Barrier Z954 is a 3-channel AC version barrier designed to prevent surges of energy from entering hazardous areas. It acts as a safety device for electrical signals transmitted between safe and hazardous zones.
Here’s a breakdown of the key points and specifications:
General Features:
- Channels: 3
- Version: AC
- Mounting: DIN rail mountable
Electrical Specifications:
- Nominal Resistance: 12 Ω
- Series Resistance (Max): 27.27 Ω
- Fuse Rating: 50 mA
- Working Voltage:
- Supply Loop (Max): 3.7 V
- Measurement Loop (Max): 0.6 V at 1 µA
- Conformity: IP20 (protected against objects larger than 12.5mm and dust)
Environmental Conditions:
- Operating Temperature: -20°C to 60°C (-4°F to 140°F)
- Storage Temperature: -25°C to 70°C (-13°F to 158°F)
- Relative Humidity (Max): 75% (non-condensing)
Hazardous Area Connection: Terminals 1, 2; 2, 3; 2, 4 Safe Area Connection: Terminals 5, 7; 6, 7; 8, 7
Hazardous Area Approvals:
- EU-Type Examination Certificate: BAS 01 ATEX 7005
- Marking: II (1)GD, I (M1) [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] IV
- Voltage: 4.5 V
- Current: 383 mA
- Power: 430 mW
- Supply Maximum Safe Voltage: 250 V
- Series Resistance (Min): 11.76 Ω
- Certificate: TÜV 99 ATEX 1484
- Marking: II 3G Ex nA IIC T4 Gc
- Directive Conformity: Directive 2014/34/EU (ATEX 139)
- International Approvals: FM, UL/cULus, IECEx
Pepperl+Fuchs, Zener Barrier 3-channel, AC version, Working voltage 0.6 V at 1 µA, Series resistance max. 27.27 Ω, Fuse rating 50 mA, DIN rail mountable, Type: AC version
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