Isolator Barriers

Loop-powered binary output

Ex i field circuit

9276/10-24-48-00s Art. No. 261442

Key Features

A comprehensive portfolio for a wide range of solenoid valves
Space savings due to a slim design – 12.5 mm wide
Can be used for functional safety levels up to SIL 3 (IEC/EN 61508)

Image of the R. STAHL 9276A Isolator Barrier

Series 9276 digital outputs issue signals for the intrinsically safe operation of Ex i solenoid valves, indicator lamps or horns. The devices do not require a separate auxiliary power supply as they are powered by the control circuit. The intrinsically safe outputs are galvanically separated from the inputs.

Technical Data

Explosion Protection

Parameter	Value
Application range (zones)	2
Ex interface zone	0, 1, 2, 20, 21, 22
IECEX gas certificate	IECEX IBE 17.0045X
IECEx gas explosion protection	Ex ec [ia Ga] IIC T4 Gc
IECEx dust certificate	IECEx IBE 17.0045X
IECEx dust explosion protection	[Ex ia Da] IIIC
IECEX firedamp certificate	IECEX IBE 17.0045X
IECEX firedamp protection	[Ex ia Ma] I
ATEX gas certificate	IBEXU 17 ATEX 1153 X
ATEX gas explosion protection	II 3 (1) G Ex ec [ia Ga] IIC T4 Gc
ATEX dust certificate	IBEXU 17 ATEX 1153 X
ATEX dust explosion protection	II (1) D [Ex ia Da] IIIC
ATEX firedamp certificate	IBEXU 17 ATEX 1153 X
ATEX firedamp protection	I (M1) [Ex ia Ma] I
cULus certificate	E81680
Marking cULus	Class I, Div. 2, Groups A,B,C,D; Class I, Zone 2, AEx/Ex nA Group IIC AIS Class I,II,III, Div. 1, Groups A,B,C,D,E,F,G; Class I, Zone 0, [AEx ia]/[Ex ia] IIC T4 any mounting pos. Ta = 60°C
Certificates	See Doc. 9276 6 031 001 3 ATEX (IBE), Canada (UL), China (CQM), IECEx (IBE), Korea (KTL), SIL (exida), USA (UL)
Ship approval	DNV
Declaration of conformity	ATEX (EUK), China (CCC)
Safety Data
Max. voltage U/Voc	27.7 V

Safety Data

Parameter	Value
Max. current I (Ex ia)	101 mA
Max. power P.	697 mW
Max. permissible external capacitance C/C for IIC	0.085 μF
Max. permissible external inductance L/La for IIC	4 mH
Max. permissible external capacitance C/C for IIB	0.663 µF
Max. permissible external inductance L/La for IIB	17 mH
Max. permissible external capa.IIA	2.2 μF
Max. permissible external inductance L。 for IIA	35 mH
Max. perm. ext. capacit. IIIC	0.663 μF
Max. permis. ext. induct. IIIC	17 mH
Max. permissible ext. capac. I	2.2 μF
Max. permissible external inductance L。 for I	35 mH
Internal capacitance	Negligible
Internal inductance	Negligible
Safety-related max. voltage	253 V AC
Intrinsically safe limiting values inductance L/capacitance C。	Jointly connectable inductance L/capacitance Co
IIC	L. [mH]: 20 mH, 10 mH, 5 mH, 1 mH, 0.100 mH C. [µF]: 0.068 μF, 0.068 μF, 0.068 μF, 0.079 μF, 0.108 μF
IIB	L. [mH]: 10 mH, 5 mH, 1 mH, 0.100 mH C. [µF]: 0.250 μF, 0.250 μF, 0.350 μF, 0.663 μF
IIA	L. [mH]: 20 mH, 5 mH, 1 mH, 0.100 mH C. [µF]: 0.440 μF, 0.440 μF, 0.680 μF, 0.960 μF
IIIC	L. [mH]: 10 mH, 5 mH, 1 mH, 0.100 mH C. [µF]: 0.250 μF, 0.250 μF, 0.350 μF, 0.663 µF
I	L. [mH]: 20 mH, 5 mH, 1 mH, 0.100 mH C. [µF]: 0.440 μF, 0.440 μF, 0.680 μF, 0.960 μF

Functional Safety

Parameter	Value
SIL	3
HFT	0
SFF	100%
Lambda SD	0 FIT
Lambda SU	50 FIT
Lambda DD	0 FIT
Lambda DU	0 FIT

Electrical Data

Parameter	Value
Number of channels	1
Auxiliary power	without
Max. power dissipation	1.41 W

Auxiliary Power

Parameter	Value
Polarity reversal protection	Yes
Galvanic Isolation	EN IEC 60079-11
Test voltage as per standard	375 V AC peak value
Galvanic separation Ex i output to input

Input

Parameter	Value
Input voltage for ON	15 – 30 V
Input voltage for OFF	0 – 5 V

Output

Parameter	Value
Output open-circuit voltage U	24 V
Max. output current I_{a max}	48 mA
Output internal resistance R_i	275.5 Ω
Switching delay ON/OFF	≤ 20 ms
Switching delay OFF/ON	≤ 20 ms
Response time output	20 ms
Switching state indication	Yellow "STAT" LED

Ambient Conditions

Parameter	Value
Ambient temperature °C	-40 °C ... 60 °C
Ambient temperature °F	-40 °F ... +140 °F
Storage temperature °C	-40 °C ... 80 °C
Storage temperature °F	-40 °F ... +176 °F
Max. relative humidity	10 to 95%
Use at the height of	< 2000 m
Electromagnetic compatibility	EN 61326-1 Use in industrial environment Immunity according to EN 61000-6-2 Interference emission to EN 61000-6-4

Mechanical Data

Parameter	Value
Degree of protection (IP)	IP30
Degree of protection (IP) terminals	IP20
Fire resistance (UL 94)	VO
Enclosure material	Polyamide
Grid dimension	12.5 mm
Width	12.5 mm
Width, inches	0.49 in
Height	114.5 mm
Height in inches	4.51 in
Length	112.5 mm
Length in inches	4.43 in
Weight	165 g
Weight	0.36 lb

Mounting / Installation

Parameter	Value
Mounting type	DIN rail NS35/15, NS35/7.5
Mounting orientation	Vertical Horizontal
Connection type	Screw terminal
Min. rigid conductor cross section	0.2 mm²
Max. rigid conductor cross section	2.5 mm²
Min. flex conductor cross section	0.2 mm²
Max. flex conductor cross section	2.5 mm²
Connection cross-section AWG	24 ... 14

Technical Drawings - Subject to Alterations

Hazardous Location vs. Nonhazardous Location Output characteristic curve 9276/10-24-48-00

Output characteristic curve 9276/10-24-48-00

Shows output current (mA) vs. input voltage (V).

Connection diagram 9276/10

Diagram showing connection details.

Dimensional Drawings (All Dimensions in mm [inches]) – Subject to Alterations

Diagram showing the dimensions of the isolator barrier, including height, width, and length in both millimeters and inches.

We reserve the right to make alterations to the technical data, dimensions, weights, designs and products available without notice. The illustrations cannot be considered binding.

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