Description

PEPPERL FUCHS Z728 ZENER BARRIER

General specifications
Type		DC version, positive polarity
Electrical specifications
Nominal resistance		300 Ω
Series resistance		max. 327 Ω
Fuse rating		50 mA
Hazardous area connection
Connection		terminals 1, 2
Safe area connection
Connection		terminals 7, 8
Working voltage
	Supply loop	max. 26.9 V
	Measurement loop	max. 26.5 V at 10 µA
Conformity
Degree of protection		IEC 60529
Ambient conditions
Ambient temperature		-20 … 60 °C (-4 … 140 °F)
Storage temperature		-25 … 70 °C (-13 … 158 °F)
Relative humidity		max. 75 % , without condensation
Mechanical specifications
Degree of protection		IP20
Connection		screw terminals
Core cross section		max. 2 x 2.5 … mm²
Mass		approx. 150 g
Dimensions		12.5 x 115 x 116 mm (0.5 x 4.5 x 4.6 inch) (W x H x D)
Construction type		modular terminal housing , see system description
Mounting		on 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
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] I (-20 °C ≤ T_amb ≤ 60 °C) [circuit(s) in zone 0/1/2]
	Voltage	28 V
	Current	93 mA
	Power	650 mW
Supply
	Maximum safe voltage	250 V
Series resistance		min. 301 Ω
Certificate		TÜV 99 ATEX 1484 X
	Marking	II 3G Ex nA IIC T4 Gc [device in zone 2]
Directive conformity
	Directive 2014/34/EU	EN IEC 60079-0:2018+AC:2020 , EN 60079-11:2012 , EN 60079-15:2010
International approvals
FM approval
	Control drawing	116-0118
UL approval
	Control drawing	116-0139 (cULus)
IECEx approval
	IECEx certificate	IECEx BAS 09.0142 IECEx BAS 17.0091X
	IECEx marking	[Ex ia Ga] IIC , [Ex ia Da] IIIC , [Ex ia Ma] I Ex ec IIC T4 Gc
General information
Supplementary information		Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.