PBDU Series

DIN-Rail Mounting

Compact 17.5 mm enclosure saves space and reduces installation time and cost

Protects against phase loss, phase reversal and phase unbalance (adjustable)

Overview
Operation
Knowledge Base

Features	Protects against phase loss, phase reversal and phase unbalance Phase unbalance is adjustable from 5% to 25%, and can be disabled altogether if desired LED status indication on front face for easy troubleshooting Universal voltage range of 280 - 480V AC
Enclosure Style	Mounts on 35mm DIN-rail
Configuration/ Contact Rating	SPDT 5A @ 250V AC
Approvals	UL File #E236146
Technical Documentation	Catalog Pages Instruction Sheet CAD Drawings

Operation:

Phase Loss: Unit trips on loss of any Phase L1, L2 or L3, regardless of any regenerative voltages.

Phase Reversal (Out-of-Sequence): Unit trips if sequence (rotation) of the three phases is anything other than L1-L2-L3. It will not work on L3-L2-L1.

Phase Unbalance: Adjustable from 5 - 25% unbalance or can be disabled. Unit trips when any one of the three lines deviates from the average of all three lines by more than the adjusted set point for a period longer than the adjustable trip delay.

Macromatic's Three-Phase Monitor Relays Knowledge Base contains general and technical industry articles to help you learn more about Three-Phase Monitor Relays.

Compact 17.5 mm enclosure saves space and reduces installation time and cost

Protects against phase loss, phase reversal and phase unbalance (adjustable)