ZSB-409A Intrinsically Safe C-UL-US ATEX IECEx | Ultrasonic Sensors

Description

The ZSB-409A is a 3-channel dc positive polarity zener safety barrier for use in intrinsic safety applications. The 3-channel design has one 24 V dc channel and two 10 V dc channels. The ZSB-409A is compatible with Migatron’s RPS-409A-IS, RPS-409A-IS2 and RPS-409A-IS3 ultrasonic sensors, and combines all of the connections into one convenient package. The ZSB-409A provides for the safe operation of an intrinsically safe electrical apparatus installed in a hazardous gas or dust environment classified as Zone 0, 1, 2, 20, 21, or 22 for ATEX/IECEx, and Class I, II, or III for UL/cUL.

The ZSB-409A safety barrier is intended for indoor or outdoor use in locations where the temperature does not exceed the specified range (Ta) of the safety barrier. The safety barrier must be installed in a safe area; typically in racks or control cabinets with an appropriate level of protection from dust and liquids. The ZSB-409A is designed for easy installation onto standard 35 mm DIN-Rail, and is fitted with an insulated wire for making the ground connection. Refer to Control Drawing No. Ex05121109 for further information on installation.

Specifications

Safe Area Terminal Connections

Channel#	Terminals	Supply Voltage maximum (V dc)	Fuse Rating (mA)	Nominal Resistance (Ω)
1	7 & GND	25.5	50	320 (terminals 7 to 3)
2	5 & GND	10.4	50	2718 (terminals 5 to 1)
3	6 & GND	10.4	50	2718 (terminals 6 to 2)

GND = Safe Area ground terminals are 8, 13, 14, 15, & 16

The maximum voltage Um applied to a non-intrinsically safe apparatus or an intrinsically safe associated apparatus/equipment is 250 V rms or dc.

Entity Parameters:	See Control Drawing No. Ex05121109
Connections:	Cage terminals, each maximum 12 AWG solid/stranded wire type Cu, torque 5-7 Lb. In. (0.6-0.8 Nm)
Ambient Temperature:	-40°C ≤ Ta ≤ +60°C (-40°F ≤ Ta ≤ +140°F)
Humidity:	0 – 95% Non-Condensing
Housing Material:	Polyamide
Protection:	Model ZSB-409A must be installed inside an end-use enclosure with suitable ratings for the environment, with at least an ingress protection rating of IP20.
Mounting:	DIN-Rail
Weight:	approximate 270 g (9.5 oz.)
Dimensions:	Length = 99 mm (3.9″), Width = 22.5 mm (0.9″), Height = 114.5 mm (4.5″)

Explosion Protection and Approvals

(ATEX) DEMKO 13 ATEX 1214149X	(IECEx) IECEx UL 13.0030X	(UL/cUL) File # E226209
I M(1) [Ex ia Ma] I	[Ex ia Ma] I	Class I, Division 1, Groups A, B, C, and D;
II (1) G [Ex ia Ga] IIC	[Ex ia Ga] IIC	Class II, Division 1, Groups E, F, and G; and
II (1) D [Ex ia Da] IIIC	[Ex ia Da] IIIC	Class III, Division 1

Ordering Information

PART NUMBER	DESCRIPTION
ZSB-409A	3-Channel DC Positive Polarity Zener Safety Barrier
F24-7942744	DIN-Rail (6″ section) – Sold Separately
F33-5441504	DIN-Rail Grounding Block – Sold Separately