R. STAHL 9276A Series Loop-Powered Binary Output Ex i Field Circuit Isolators

Article Number: 261442

Model: 9276/10-24-48-00s

Product Overview

The R. STAHL 9276A series provides loop-powered binary outputs for Ex i field circuits. These digital outputs are designed to operate intrinsically safe solenoid valves, pilot lights, or horns. The devices do not require separate auxiliary energy, as they are powered by the control circuit. The intrinsic safety outputs are galvanically isolated from the inputs.

Key Features:

Extensive catalog for a wide range of solenoid valves.
Space-saving design with a width of 12.5 mm.
Usable up to SIL 3 (IEC/EN 61508).

Technical Data

Explosion Protection

Applications (zones)	2
Interface Ex zone	0, 1, 2, 20, 21, 22
IECEX gas homologation	IECEx IBE 17.0045X
IECEx gas explosion protection	Ex ec [ia Ga] IIC T4 Gc
IECEx dust homologation	IECEx IBE 17.0045X
IECEx dust explosion protection	[Ex ia Da] IIIC
IECEx firedamp homologation	IECEX IBE 17.0045X
IECEx firedamp explosion protection	[Ex ia Ma] I
ATEX gas homologation	IBEXU 17 ATEX 1153 X
ATEX gas explosion protection	II 3 (1) G Ex ec [ia Ga] IIC T4 Gc
ATEX dust homologation	IBEXU 17 ATEX 1153 X
ATEX dust explosion protection	II (1) D [Ex ia Da] IIIC
ATEX firedamp homologation	IBEXU 17 ATEX 1153 X
ATEX firedamp explosion protection	I (M1) [Ex ia Ma] I
cULus homologation	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 See Doc. 9276 6 031 001 3

Certifications

Certifications	ATEX (IBE), Canada (CSA), China (CQM), Korea (KTL), EE.UU. (UL), IECEx (IBE), SIL (exida)
Naval certification	DNV

Safety Data

Maximum voltage U	27.7 V
Maximum current I (Ex ia)	101 mA
Maximum power P.	697 mW
Maximum admissible external capacitance C. for IIC	0.085 μF
Maximum admissible external inductance L. for IIC	4 mH
Maximum admissible external capacitance C. for IIB	0.663 μF
Maximum admissible external inductance L. for IIB	17 mH
Maximum admissible external capacitance IIA	2.2 μF
Maximum admissible external inductance IIA	35 mH
Max. admissible ext. capacitance IIIC	0.663 μF
Max. admissible ext. inductance IIIC	17 mH
Max. admissible external capacitance I	2.2 μF
Maximum admissible external inductance L. for I	35 mH
Internal capacitance	Irrelevant
Internal inductance	Irrelevant
Maximum technical safety voltage	253 V AC

Intrinsic Safety Limits Inductance L₀ / Capacitance C₀

	20 mH	10 mH	5 mH	1 mH	0.100 mH
IIC L₀ [mH]	0.068 μF	0.068 μF	0.068 μF	0.079 μF	0.108 μF
IIB L₀ [mH]	0.250 μF	0.250 μF	0.350 μF	0.663 μF
IIA L₀ [mH]	0.440 μF	0.440 μF	0.680 μF	0.960 μF
IIIC L₀ [mH]	0.250 μF	0.250 μF	0.350 μF	0.663 μF
I L₀ [mH]	0.440 μF	0.440 μF	0.680 μF	0.960 μF

Functional Safety

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

Electrical Data

Number of channels

Auxiliary Power

Auxiliary power	None
Maximum dissipated power	1.41 W
Reverse polarity protection	Yes ✔️

Galvanic Isolation

Test voltage according to standard	EN IEC 60079-11
Galvanic isolation Ex i to output	375 V AC maximum value

Input

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

Output

Output voltage at open circuit U	24 V
Maximum output current Iₐ max	48 mA
Output internal resistance R	275.5 Ω
Switching delay ON/OFF	≤ 20 ms
Switching delay OFF/ON	≤ 20 ms
Output stabilization time	20 ms
Switching status indication	Yellow LED "STAT"

Environmental Conditions

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%
Usage at altitude	< 2000 m
Electromagnetic compatibility	EN 61326-1 industrial environment use. Immunity according to EN 61000-6-2 Radiated spurious emissions according to EN 61000-6-4

Mechanical Data

Degree of protection (IP)	IP30
Degree of protection (IP) terminals	IP20
Fire resistance (UL 94)	V0
Enclosure material	Polyamide
Web dimension	12.5 mm
Width	12.5 mm
Mounting width	12.5 mm
Mounting width in inches	0.49 in
Height	114.5 mm
Height	114.5 mm
Height inches	4.51 in
Length	112.5 mm
Length inches	4.43 in
Weight	165 g
Weight	0.36 lb

Mounting / Installation

Mounting type	DIN rail NS35/15, NS35/7.5
Mounting position	vertical / horizontal
Connection type	Screw terminal
Minimum rigid conductor cross-section	0.2 mm²
Maximum flexible conductor cross-section	2.5 mm²
Minimum flexible conductor cross-section	0.2 mm²
Maximum flexible conductor cross-section	2.5 mm²
Ambient temperature AWG	24 ... 14

Dimensional Drawing

A dimensional drawing is provided, showing overall dimensions in mm and inches. Key dimensions include:

Height: 114.50 mm [4.51 in]
Length: 112.50 mm [4.43 in]
Width: 12.50 mm [0.49 in]

The drawing also indicates compatibility with ISpace series 9260, 9265, 9270, 9275, 9276, 9282 with screw terminals.

Disclaimer

R. STAHL reserves the right to modify technical data, dimensions, weights, constructions, and delivery options.

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