Delta MCS-1800 Specifications download pdf (Page 47)

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ORDERING INFORMATION

MOTORSAVER™ THREE-PHASE VOLTAGE MONITOR

201A

Supply Watts 5W

Frequency 50* or 60 Hz

Transient Protection 2500V for 10 ms

Line Voltage Monitored Three-phase, 190-480

VAC, adjustable

Low Voltage Trip 90% of setpoint

Low Voltage Reset 93% of setpoint

Reset Delay Time after Fault 2 seconds

Reset Delay Time after Power Loss

2 seconds

Trip Delay Time Low Voltage 4 seconds

Trip Delay Time Phase Fault 2 seconds

Trip Delay Time Unbalance 2 seconds

Voltage Unbalance Reset 4.5%

Voltage Unbalance Trip 6%

Dimensions 2.37"W x 1.75"H x 4.25"L

(6.0 x 4.4 x 10.8cm)

Weight 0.56 lb (0.25 kg)

Approvals UL Listed, File #E68520,

CE certiﬁed

Warranty 5 years

DESCRIPTION

The MotorSaver™ 201A Three-Phase Voltage Monitor is

an autoranging plug-in voltage monitor designed to protect

three-phase motors regardless of size. It is used on 190-

480 VAC 50/60 Hz motors to prevent damage caused by

single phasing, low voltage, phase reversal, or voltage

unbalance. To detect harmful power line conditions, the

unique microprocessor-based voltage and phase sensing

circuit constantly monitors the three-phase voltages. When a

harmful condition is detected, the Model 201A MotorSaver's

output relay is deactivated after a ﬁxed trip-delay time period.

The output relay reactivates after power line conditions return

to an acceptable level for a ﬁxed restart delay time. The trip

delay prevents nuisance tripping due to rapidly ﬂuctuating

power line conditions.

FEATURES

• Protection of three-phase motors against single

phasing, low voltage, phase reversal, and voltage

unbalance

• DIN rail- or surface-mounted socket

• UL and ULC listed, CE certiﬁed

• Bicolor LED indication of normal and fault conditions

• Single-phase condition detection regardless of

regenerated voltages

Motor

L2 L3

Start

Stop

Hand

Auto Pilot

Off

Control

Voltage

240 VAC max

201A

435

WIRING

MODEL DESCRIPTION

201A MotorSaver three-phase voltage monitor

OT08PC Socket, 600 VAC, DIN rail or surface mount

SPECIFICATIONS

Shown de-energized

Model 201A

* 50 Hz will increase all delay times by 20%.

201A

OT08PC

March 2014

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Delta MCS-1800 Specifications Page 47

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