R. STAHL 9276A Galvanic Isolator

Product Name: Loop-powered binary output without auxiliary output

Field Circuit Type: Ex i

Article Number: 9276/10-24-48-00k

Order Number: 261446

Product Overview

The R. STAHL 9276A series binary outputs provide signals for the intrinsically safe operation of Ex i solenoid valves, signal lamps, or sirens. These devices do not require a separate auxiliary power supply as they are powered by the control circuit. The intrinsically safe outputs are electrically isolated from the inputs.

Important portfolio for a wide range of solenoid valves
Space-saving due to narrow construction – 12.5 mm wide
Usable up to SIL 3 (IEC/EN 61508)

Technical Characteristics

Explosion Protection

Parameter	Value
Application Domain (Zones)	2
Interface Ex 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
cULus identification	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	ATEX (IBE), Canada (CSA), China (CQM), États-Unis (UL), IECEx (IBE), SIL (exida)
Marine approval	DNV
Certificate of conformity	ATEX (EUK), China (CCC)

Safety Values

Parameter	Value
Maximum voltage U_o	27.7 V
Maximum current I_sc (Ex ia)	101 mA
Maximum power P_o	697 mW
Max. permissible external capacitance C_o for IIC	0.085 μF
Max. permissible external inductance L_o for IIC	4 mH
Max. permissible external capacitance C_o for IIB	0.663 μF
Max. permissible external inductance L_o for IIB	17 mH
Max. permissible external capacitance for IIA	2.2 μF
Max. permissible external inductance for IIA	35 mH
Max. permissible external capacitance for IIIC	0.663 μF
Max. permissible external inductance for IIIC	17 mH
Max. permissible external capacitance for I	2.2 μF
Max. permissible external inductance L_o for I	35 mH
Internal capacitance	Negligible
Internal inductance	Negligible
Maximum safety technical voltage	253 V AC

Intrinsic Safety Limit Values (Inductance L / Capacitance C_o that can be connected together)

Group	Inductance L_o [mH]
Group	20 mH	10 mH	5 mH	1 mH	0.100 mH
IIC	C_o [μF]	0.068 μF	0.068 μF	0.068 μF	0.079 μF	0.108 μF
IIB	C_o [μF]	0.250 μF	0.250 μF	0.350 μF	0.663 μF
IIA	C_o [μF]	0.440 μF	0.440 μF	0.680 μF	0.960 μF
IIIC	C_o [μF]	0.250 μF	0.250 μF	0.350 μF	0.663 μF
I	C_o [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 Characteristics

Parameter	Value
Number of channels	1
Auxiliary supply	None
Maximum dissipated power	1.41 W
Reverse polarity protection	Yes
Electrical separation voltage test according to standard	EN IEC 60079-11
Electrical separation Output Ex i to input	375 V AC peak value
Input voltage for ON	15 - 30 V
Input voltage for OFF	0 - 5 V
Output open-circuit voltage U_o	24 V
Maximum output current I_a	48 mA
Internal resistance R	275.5 Ω
Switching delay ON/OFF	≤ 20 ms
Switching delay OFF/ON	≤ 20 ms
Output establishment time	20 ms
Switching status indication	Yellow LED "STAT"

Ambient Conditions

Parameter	Value
Ambient temperature	-40 °C ... 60 °C (-40 °F ... +140 °F)
Storage temperature	-40 °C ... 80 °C (-40 °F ... +176 °F)
Maximum relative humidity	10 ... 95%
Operation at altitude	< 2000 m
Electromagnetic compatibility	EN 61326-1, industrial environment use Immunity to disturbances according to EN 61000-6-2 Emission of disturbances according to EN 61000-6-4

Mechanical Characteristics

Parameter	Value
Degree of protection (IP)	IP30
Degree of protection (IP) pins	IP20
Flammability resistance (UL 94)	V0
Housing material	Polyamide
Pitch	12.5 mm
Width	12.5 mm (0.49 in)
Height	114.5 mm (4.51 in)
Length	116 mm (4.57 in)
Weight	165 g (0.36 lb)

Mounting / Installation

Parameter	Value
Mounting type	DIN rail NS35/15, NS35/7.5
Mounting position	Vertical / Horizontal
Connection type	Spring clamp terminal
Rigid conductor cross-section min.	0.2 mm²
Rigid conductor cross-section max.	1.5 mm²
Flexible conductor cross-section min.	0.2 mm²
Flexible conductor cross-section max.	1.5 mm²
AWG connection size	24 ... 16

Outline Drawing

Outline drawing (all dimensions in mm [inches]) – subject to change.

Drawing Description:

The drawing shows a rectangular device with a width of 12.50 mm [0.49 in] and a height of 114.50 mm [4.51 in]. The length is 116 mm [4.57 in]. Terminal blocks are visible on the top and bottom. The drawing indicates compatibility with ISpac series 9260, 9270, 9275, 9276, 9282 with spring clamp terminals.

Subject to change regarding technical characteristics, dimensions, weight, construction types, and delivery options. Figures are for indicative purposes only.

Contact Information:

R. STAHL Schaltgeräte GmbH
Am Bahnhof 30
74638 WALDENBURG
Tel: +49 7942 943 1700
Fax: +49 7942 943 1777
Email: sales.de@r-stahl.com
Website: r-stahl.com

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