Delta MCS-1800 Specifications download pdf (Page 51)

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ORDERING INFORMATION

MOTORSAVER™ THREE-PHASE VOLTAGE MONITOR

460

Supply Watts 6W maximum

Frequency 50*/60 Hz

Humidity 10-95% RH, non-condensing

Contact Rating SPDT, pilot duty 480 VA @ 240 VAC

General-purpose 10A @ 240 VAC

Transient Protection IEC 1000-4-5, ANSI/IEEE C62.41,

UL508

Line Voltage Monitored 190-480

Low Voltage Trip 90% of setpoint (±1%)

Low Voltage Reset 93% of setpoint (±1%)

Reset Delay Time

after Fault 1-500 second adjustable

Reset Delay Time

after Power Loss 1-500 second adjustable

Trip Delay Time

High Voltage 1-30 second adjustable

Trip Delay Time

Low Voltage 1-30 second adjustable

Trip Delay Time

Phase Fault 1 second ﬁxed

Trip Delay Time

Unbalance 1-30 second adjustable

Voltage Unbalance Reset

Trip setting minus 1% (5-8%) Trip

setting minus 0.5% (2-4%)

Voltage Unbalance Trip 2% to 8%, adjustable

Operating Temperature -4° to 158°F (-20° to 70°C)

Dimensions 3.5"H x 2.1"W x 2.4"D

(8.9 x 5.3 x 6.1 cm)

Weight 0.9 lb (0.4 kg)

Approvals UL and cUL listed, File #E68520, CE

Warranty 5 years

DESCRIPTION

The MotorSaver™ Model 460 microcontroller-based

voltage and phase sensing circuit constantly monitors the

three phase voltage to detect harmful power line conditions.

When a harmful condition is detected, the Model 460 output

relay is deactivated after an adjustable trip delay time. The

output relay reactivates after power line conditions return to

an acceptable level for an adjustable restart delay time. If

equipped with the manual reset option, an external normally

open momentary reset switch must be closed to reactivate

the output relay. The trip and restart delays prevent nuisance

tripping due to rapidly ﬂuctuating power line conditions.

The Model 460 automatically senses whether it is connected

to a 190-240V 60 Hz system, a 440-480V 60 Hz system, or

a 380-416V 50 Hz system. An adjustment is provided to set

the nominal line voltage from 190-240 or 380-480 VAC. Other

adjustments include a 1-30 second trip delay, a 1-500 second

restart delay, and a 2% to 8% voltage-unbalance trip point

adjustment.

FEATURES

• Protection of three-phase motors from loss of any

phase, low-voltage, phase reversal, voltage unbalance,

and high voltage

• Adjustable restart delay

• Adjustable trip delay

• Adjustable voltage unbalance trip point

• Optional manual reset

• Diagnostic LEDs for indication of trip status

• Single-phase condition detection regardless of

regenerated voltages

• Surface or DIN rail mounting

Control Power

24-240 VAC

External

Normally Open

Momentary Manual

Reset Switch

(customer

supplied)

Shown de-energized

Model 460

Input

Power

Motor

L2 L3

Auto

Pilot Contact

Manual Reset

on 460-MR only

Off

Manual

Stop

Start

Magnetic

Contactor

WIRING

SPECIFICATIONS

460

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

MODEL DESCRIPTION

460 Three-phase voltage monitor, 190-480 VAC

460-MR Three-phase voltage monitor, 190-480 VAC with manual reset

460-575 Three-phase voltage monitor, 190-480 VAC, 1-30 second trip delay, 1-500 second restart delay, 2-8% voltage unbalance trip point

March 2014

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Delta MCS-1800 Specifications Page 51

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