Catalog 1308242
Issued 3-03 AGASTAT
GP/ML/TR series
10 Amp Control Relay
Non-latching, Latching & Timing Versions
File E15631 File LR29186
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.
SERIES GP SERIES TR
GP/ML/TR Design Features Features
Among the advances AGASTAT control relays offer over existing designs is Occupies very small panel space
a unique contact operating mechanism. An articulated arm assembly May be mounted singly, in continuous rows or in groups.
amplifies the movement of the solenoid core, allowing the use of a short Available with screw terminal molded socket.
stroke coil to produce an extremely wide contact gap. The long support 4 SPDT contacts.
arms used in conventional relays are eliminated. Both current capacity and Magnetic blowout device option increases DC current carrying ability
shock/vibration tolerance are greatly increased, as well as life expectancy. 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
GP/ML Contact Data @ 25C
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.
Arrangements: 4 Form C (4PDT)
The coil itself is in the form of an elongated cylinder, which provides a
Material: Siver plated.
low mean turn length and also assists heat dissipation. Since the
Ratings: See chart.
maximum travel of the electromagnet does not provide optimum contacts
Expected Life: Mechanical: 100 million operations.
movement, an ingenious amplifying device has been designed.
Electrical: See chart and graph.
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
Contact Ratings and Expected Life
each other as can be seen in the illustration. The center of the W mecha-
Power Factor Number of
nism is connected to the moving core of the electromagnet and the two
Current or Electrical
lower points are connected to the moving contacts.
Voltage (Amps) Time Constant Operations Remarks
Two of these mechanisms are placed side-by-side to actuate the four
540 VAC 3 COS = 0.5 15,000 2 contacts in series
contacts sets of the relay. The outer arms of the W mechanisms are leaf
380 VAC 15 Resistive 10,000 2 contacts in parallel
springs, manufactured from a flat piece of non-ferrous metal. These outer
arms act as return springs for their corresponding contacts. This provides 380 VAC 10 Resistive 200,000
each contact with its own separate return spring, making the contacts
380 VAC 3 x 3.3 COS = 0.8 200,000 3hp motor
independent.
220 VAC 20 Resistive 20,000 2 contacts in parallel
The mechanical amplification of the motion of the electromagnet
220 VAC 15 COS = 0.5 20,000 2 contacts in parallel
permits a greater distance between the contacts, while the high efficiency
220 VAC 10 Resistive 400,000
of the electromagnet provides a nominal contact force in excess of 100
220 VAC 3 x 6 COS = 0.8 200,000 3hp motor
grams on the normally open contacts.
220 VAC 5 1,500,000 Filament lamps
All the contacts are positioned well away from the cover and are well
ventilated and separated from each other by insulating walls.
220 VAC 5 Resistive 3,000,000
The absence of metal-to-metal friction, the symmetrical design of the
220 VAC 2.5 COS = 0.25 2,000,000
contact arrangement and the lack of heavy impacts provides a mechanical
220 VAC 2 Resistive 15,000,000
life of 100,000,000 operations.
220 VAC 1.25 Resistive 30,000,000
For use in AC circuits, the relay is supplied with a built-in rectification
120 VDC 1.5 Resistive 20,000,000 with blow-out device
circuit, thus retaining the high DC efficiency of the electromagnet. The
current peak on energizing is also eliminated and consequently the relay 48 VDC 10 Resistive 1,000,000
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 Load Life Curve
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.
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 Dimensions are in inches over Specifications and availability www.tycoelectronics.com
reference purposes only. (millimeters) unless otherwise subject to change. Technical support:
917
specified. Refer to inside back cover.Catalog 1308242
Issued 3-03 AGASTAT
Initial Dielectric Strength Operate Data @ 20C
Between non-connected terminals: 2,000V rms, 60 Hz.
Operate Time at Rated Voltage: Between energizing and opening of
Between non-connected terminals & relay yoke: 2,000V rms, 60 Hz. normally closed contacts, less than 18 milliseconds on AC and less than
15 milliseconds on DC.
Release Time: Between energizing and closing of normally open
Initial Insulation Resistance
contacts, less than 35 milliseconds on AC and less than 30 milliseconds
9
Between non-connected terminals: 10 ohms at 500VDC.
on DC. Between de-energizing and opening of normally open contacts,
9
Between non-connected terminals & relay yoke: 10 ohms at 500VDC.
less than 70 milliseconds on AC and less than 8 milliseconds on DC.
Between de-energizing and closing of normally closed contacts, less than
Coil Data
85 milliseconds on AC and less than 25 milliseconds on DC.
Voltage: 24, 120 & 220VAC, 60 Hz. Add series resistor for 380-440VDC;
12, 24, 48, 125 & 250VDC.
Environmenal Data
Duty Cycle: Continuous.
Operating Temperature Range: 0C to +60C.
Nominal Coil Power: 6VA for AC coils; 6W for DC coils.
Vibration: Single axis fragility curve data are available on request at
There is no surge current during operation.
frequencies from 5 Hz. to 33 Hz.
Coil Operating Voltage
Shock: The relay, when kept energized by means of one of its own
contact sets, will withstand 40g shock load when operating on DC, and
DC AC, 50/60Hz
150g shock load on AC.
Nominal Coil Voltage 12 24 48 125 250 24 120 220
Minimum Pick-up
Voltage at 20C 9 18 36 94 187 19 92 175
Mechanical Data
Minimum Pick-up
Mounting Terminals: 16 flat base pins. Screw terminal sockets are
Voltage at 40C 9.5 19 38 100 200 20 102 188
available.
Wire Connection: The 16 flat pins are arranged in four symmetrical rows
Maximum voltage for
of four pins; the pitch in both directions being .394. Connection may be
continuous use 13.5 27 53 143 275 27 137 245
made to the relay by soldering. Sockets are available with screw terminals.
For 380VAC Use 6800 ohms 4 watt resistor in series with 220VAC relay. The internal wiring of the relay is also symmetrical as shown in the
For 440VAC Use 8200 ohms 6 watt resistor in series with 220VAC relay. adjacent figure, allowing the relay to be inserted into the socket in either of
two positions. Terminals B2 and B3 are provided as extra connections for
Drop-out voltage is between 10% and 40% of the nomninal voltages for both DC
special applications.
and AC (For example: in a 120 VAC unit, drop-out will occur between 12 and 48
Weight: 10.9 oz. (308g) approximately.
volts.) DC relays will function with unfiltered DC from a full-wave bridge rectifier.
Ordering Information
Typical Part No. GP I N
1. Basic Series:
GP = Non-latching Control Relay ML = Magnetic Latching Control Relay
2. Coil Voltage:
A = 12VDC G = 24VAC, 60 Hz.
B = 24VDC I = 120VAC, 60 Hz.
C = 48VDC J = 220VAC, 60 Hz.
D = 125VDC
F = 250VDC
3. Options:
N = Magnetic Blow-out Device
Q = Light to indicate coil energization (GP only. 120VAC, 125VDC, 220VAC and 250VDC voltages only.)
R = Internal diode to suppress coil de-energization transient. (GP only. When used on DC unit, relay release time increases to same value as AC unit).
Our authorized distributors are more likely to maintain the following items in stock for immediate delivery..
GPD
GPDN
Outline Dimensions
Wiring Diagrams (Bottom Views)
Dimensions are shown for Dimensions are in inches over Specifications and availability www.tycoelectronics.com
reference purposes only. (millimeters) unless otherwise subject to change. Technical support:
918
specified. Refer to inside back cover.