Item # ISB, Intrinsically Safe Barrier (ISB) on Motor Protection Electronics, Inc.

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	Item # ISB Intrinsically Safe Barrier (ISB)

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Intrinsically Safe Barrier (ISB)
The ISB10 provides an intrinsically safe barrier ISB between a 10 channel conductance probe in a hazardous location and pump controls in a non-hazardous area. The barrier is designed to allow the level sense signal (±12V square wave) from the pump control device to pass through unchanged. If an accident or malfunction occurs in the control panel that would potentially connect spark-inducing energy to the probe wiring in the wet well, the barrier clamps to limit the voltage and current to a safe level. The barrier has a fuse in each channel that is capable of disconnecting the barrier from a high energy source that may be present in the control panel.

Specifications

Control Drawing 1

Control Drawing 2

UL File No.		E189808

Rated Operating Voltage		± 12.0 V

Barrier Clamp Voltage		± 15.15 V

Internal Resistance (Per Channel)		1.92 KΩ

Operating Temperature		-20 to 65 °C

Storage Temperature		-45 to 85 °C

No. of Channels		10

Enclosure Construction		Aluminum

DOWNLOADS


		Product Datasheet - MPE-ISB (PDF, 544KB)

		MPE-ISB-Specification (DOC, 20KB)

Item # ISB Intrinsically Safe Barrier (ISB)

UL File No.

Rated Operating Voltage

Barrier Clamp Voltage

Internal Resistance (Per Channel)

Operating Temperature

Storage Temperature

No. of Channels

Enclosure Construction