MLCR datasheet, PDF - EEWORLD Datasheet

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MLCR: DescriptionON-DELAY RELAY, 4PDT, MOMENTARY, 215VDC (COIL), 10A (CONTACT), 0.15-3s, SOCKET MOUNT; CategoryTopical application Mechanical and electrical/engineering/automation; File Size262KB，4 Pages; ManufacturerMACOM; Websitehttp://www.macom.com

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MLCR Overview

ON-DELAY RELAY, 4PDT, MOMENTARY, 215VDC (COIL), 10A (CONTACT), 0.15-3s, SOCKET MOUNT

MLCR Parametric

Parameter Name	Attribute value
Minimum operating temperature	0.0 Cel
Maximum operating temperature	50 Cel
state	Active
Relay type	ON-DELAY RELAY
Minimum adjustable delay	0.1500 s
Maximum adjustable delay	3 s
width	45 mm
high	109 mm
length or diameter	45 mm
Maximum DC coil voltage	215 V
Maximum AC contact current	10 A
Maximum DC contact current	10 A
contact_output_supply_type	AC/DC
Manufacturer Series	TR
Installation features	SOCKET MOUNT
Dimensions	45mm X 45mm X 109mm
eference_standard	CSA; UL
Relay action	MOMENTARY
Relay function	4PDT
Terminal type	SNAP-ON

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Catalog 1308242

Issued 3-03

AGASTAT

GP/ML/TR

series

10 Amp Control Relay

Non-latching, Latching & Timing Versions

File E15631

File LR29186

SERIES GP

SERIES TR

Users should thoroughly review the technical data before selecting a product

part number. It is recommended that users also seek out the pertinent

approvals files of the agencies/laboratories and review them to ensure the

product meets the requirements for a given application.

GP/ML/TR Design Features

Among the advances AGASTAT control relays offer over existing designs is

a unique contact operating mechanism. An articulated arm assembly

amplifies the movement of the solenoid core, allowing the use of a short

stroke coil to produce an extremely wide contact gap. The long support

arms used in conventional relays are eliminated. Both current capacity and

shock/vibration tolerance are greatly increased, as well as life expectancy.

Features

• Occupies very small panel space

• May be mounted singly, in continuous rows or in groups.

• Available with screw terminal molded socket.

• 4 SPDT contacts.

• Magnetic blowout device option increases DC current carrying ability

approximately ten times for both N.O. and N.C. contacts. In both AC and

DC operation, the addition of the device will normally double the contact

life, due to reduced arcing.

Design/Construction

AGASTAT control relays are operated by a moving core electromagnet

whose main gap is at the center of the coil. A shoe is fitted to the core

which overlaps the yoke and further increases the magnetic attraction.

The coil itself is in the form of an elongated cylinder, which provides a

low mean turn length and also assists heat dissipation. Since the

maximum travel of the electromagnet does not provide optimum contacts

movement, an ingenious amplifying device has been designed.

This consists of a W-shaped mechanism, shown in figure 1. When the

center of the W is moved vertically the lower extremities move closer to

each other as can be seen in the illustration. The center of the W mecha-

nism is connected to the moving core of the electromagnet and the two

lower points are connected to the moving contacts.

Two of these mechanisms are placed side-by-side to actuate the four

contacts sets of the relay. The outer arms of the W mechanisms are leaf

springs, manufactured from a flat piece of non-ferrous metal. These outer

arms act as return springs for their corresponding contacts. This provides

each contact with its own separate return spring, making the contacts

independent.

The mechanical amplification of the motion of the electromagnet

permits a greater distance between the contacts, while the high efficiency

of the electromagnet provides a nominal contact force in excess of 100

grams on the normally open contacts.

All the contacts are positioned well away from the cover and are well

ventilated and separated from each other by insulating walls.

The absence of metal-to-metal friction, the symmetrical design of the

contact arrangement and the lack of heavy impacts provides a mechanical

life of 100,000,000 operations.

For use in AC circuits, the relay is supplied with a built-in rectification

circuit, thus retaining the high DC efficiency of the electromagnet. The

current peak on energizing is also eliminated and consequently the relay

can operate with a resistance in series (e.g. for high voltages or for drop-

out by shorting the coil). The use of the rectification circuit offers still

other advantages. The same model can operated at frequencies ranging

from 40 to 400 cycles. Operation of the relay is crisp; even with a low AC

voltage, there is a complete absence of hum and vibration.

The plastic dust cover has two windows through which the iron yoke

protrudes to facilitate cooling and also to allow direct mounting

arrangement of the relay irrespective of the terminals.

GP/ML Contact Data @ 25°C

Arrangements:

4 Form C (4PDT)

Material:

Siver plated.

Ratings:

See chart.

Expected Life: Mechanical:

100 million operations.

Electrical:

See chart and graph.

Contact Ratings and Expected Life

Voltage

540 VAC

380 VAC

220 VAC

120 VDC

48 VDC

Current

(Amps)

3 x 3.3

3x6

2.5

1.25

1.5

Power Factor

Time Constant

COS Ø = 0.5

Resistive

COS Ø = 0.8

Resistive

COS Ø = 0.5

Resistive

COS Ø = 0.8

Resistive

COS Ø = 0.25

Resistive

Number of

Electrical

Operations

15,000

10,000

200,000

20,000

400,000

200,000

1,500,000

3,000,000

2,000,000

15,000,000

30,000,000

20,000,000

1,000,000

Remarks

2 contacts in series

2 contacts in parallel

3hp motor

2 contacts in parallel

3hp motor

Filament lamps

with blow-out device

Load Life Curve

Figure 1 – Illustration of Amplification

This diagram illustrates

amplification obtained

by the articulated

operating mechanism.

NOTE: Seismic & radiation tested EGP, EML and ETR models

are available. Consult factory for detailed information.

Dimensions are shown for

reference purposes only.

Dimensions are in inches over

(millimeters) unless otherwise

specified.

Specifications and availability

subject to change.

www.tycoelectronics.com

Technical support:

917

Refer to inside back cover.

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