MDR-138-8 Tyco Electronics, MDR-138-8 Datasheet
MDR-138-8
Manufacturer Part Number
MDR-138-8
Description
POWER RELAY, 8PDT, 125VDC, 10A, PANEL
Manufacturer
Tyco Electronics
Datasheet
1.MDR-131-1.pdf
(2 pages)
Specifications of MDR-138-8
Relay Type
Non Latching
Coil Voltage Vdc Nom
125V
Contact Current Max
10A
Contact Voltage Ac Nom
440V
Contact Voltage Dc Nom
125V
Coil Resistance
1520ohm
Contact Configuration
8PDT
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
FIXED
CONTACT
Features
• AC and DC coils, latching and non-latching.
• 4PDT through 24PDT contact arrangements.
• Contacts will not chatter when relays are subjected to high-impact shock
Contact Data
Arrangements: 4 Form C (4PDT) through 24 Form C (24PDT).
Contact Ratings
The above AC contact ratings are based on contact loads having a 50% power factor. The DC
contact ratings are based on resistive loads.
Contact Section
Ordering Information and Coil Characteristics – No models in this series are maintained in stock.
blows of 2000 ft.-lbs.
Type
Small
Non -
Latching
Medium
Non -
Latching
Small
Latching
Medium
Latching
* Actual Wattmeter readings
Single Contacts
0.8A, 125VDC
10A, 115VAC
3A, 28VDC
Small 4PDT
Part Number
MDR-131-1
MDR-131-2
MDR-135-1
MDR-137-8
MDR-134-1
MDR-134-2
MDR-136-1
MDR-138-8
MDR-163-1
MDR-163-2
MDR-170-1
MDR-170-2
MDR-172-1
MDR-173-1
MDR-141-1
MDR-141-2
MDR-167-1
MDR-142-1
MDR-67-2
MDR-4091
MDR-67-3
MDR-5060
MDR-4076
MDR-4092
MDR-5035
MDR-5061
MDR-6064
MDR-6065
MDR-7020
MDR-7035
MDR-66-4
MDR-6066
MDR-7025
MDR-7036
Two Contacts in Series
Medium 24PDT
Contacts
12PDT
12PDT
16PDT
16PDT
16PDT
16PDT
24PDT
24PDT
24PDT
24PDT
12PDT
12PDT
12PDT
12PDT
16PDT
16PDT
16PDT
16PDT
4PDT
4PDT
4PDT
4PDT
8PDT
8PDT
8PDT
8PDT
4PDT
4PDT
4PDT
4PDT
8PDT
8PDT
8PDT
8PDT
1.5A, 125VDC
15A, 115VAC
3A, 440VAC
(60 Hz. for AC)
Coil Voltage
125VDC
125VDC
125VDC
125VDC
125VDC
125VDC
125VDC
125VDC
115VAC
440VAC
115VAC
440VAC
115VAC
440VAC
115VAC
440VAC
115VAC
440VAC
115VAC
440VAC
115VAC
440VAC
115VAC
440VAC
115VAC
440VAC
28VDC
28VDC
28VDC
28VDC
28VDC
28VDC
28VDC
28VDC
Operate Data @ 25 C
Latching Two-Position Types: Except for the latching feature, MDR
latching relays utilize the same general construction as non-latching types.
They have two sets of coils and provide a latching two-position operation.
Contacts Shown With
Coil 1-2 De-Energized and
Coil 3-4 Energized.
Environmental Data
Temperature Range: Standard models: 0 C to +65 C.
Mechanical Data
Termination: #5-40 screw terminals supplied.
Weight (Approx.):
Medium AC Non-Latching
Medium DC Non-Latching
MDR
10 Amp Rotary Relay
For Demanding Shock &
Vibration Applications
Coil Current
Small DC Non-Latching
Small – 4 & 8PDT: 32 oz. (0.914 kg); 12PDT: 33 oz. (0.943 kg).
Medium – 16PDT: 72 oz. (2.04 kg); 24PDT: 74 oz. (2.10 kg).
Small AC Non-Latching
Medium AC Latching
Medium DC Latching
(Amps)
Small AC Latching
Small DC Latching
0.215
0.045
0.362
0.082
0.215
0.045
0.362
0.082
0.230
0.055
0.620
0.160
0.667
0.125
0.620
0.160
0.667
0.125
0.150
0.020
0.778
0.164
0.150
0.020
0.778
0.164
0.380
0.055
0.316
0.083
0.380
0.055
0.316
0.083
Type
series
Resistance (Ohms)
Special order models: 0 C to +90 C.
DC Coil
B
A
C
1,256
1,520
1,256
1,520
1,024
1,024
4,500
4,500
1,500
1,500
940
107
107
210
760
210
760
540
540
Typ. Operate Time (ms) Typ. Release Time (ms)
66
76
66
76
62
42
42
36
36
24
88.6
24
88.6
M
8.4
8.4
D
L
E
15 to 30
10 to 16
65 to 90
30 to 80
5 to 12
6 to 12
6 to 12
8 to 14
K
F
G
Coil Power*
J
H
(Watts)
10.0
10.0
17.0
17.0
18.7
17.0
17.0
18.7
21.8
20.6
21.8
20.6
12.0
12.0
10.3
10.3
16.0
16.0
10.4
10.4
Coil
Coils Must be Energized Alternately,
Not Simultaneously
6.5
5.1
6.5
5.1
6.9
6.3
5.5
3.0
5.5
3.0
5.7
8.8
5.7
8.8
1
2
10 to 30
5 to 18
5 to 15
6 to 20
(Volts RMS)
Breakdown
N/A
N/A
N/A
N/A
1,230
1,880
1,308
2,375
1,230
1,880
1,308
2,375
1,230
1,880
1,230
1,880
1,308
2,375
1,230
1,880
1,308
2,375
1,230
1,880
1,308
2,375
1,230
1,880
1,308
2,375
1,230
1,880
1,308
2,375
1,230
1,880
1,308
2,375
Coil
3
4
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MDR-138-8 Summary of contents
Page 1
... Ordering Information and Coil Characteristics – No models in this series are maintained in stock. Type Part Number Contacts Small MDR-131-1 Non - MDR-131-2 Latching MDR-135-1 MDR-137-8 MDR-134-1 MDR-134-2 MDR-136-1 MDR-138-8 MDR-163-1 MDR-163-2 Medium MDR-170-1 Non - MDR-170-2 Latching MDR-172-1 MDR-173-1 MDR-141-1 MDR-141-2 MDR-167-1 MDR-142-1 Small ...
Page 2
... Tyco Electronics Corporation - P&B, Winston-Salem, NC 27102 Technical Support Center: 1-800-522-6752, www.pandbrelays.com Overall Height 4PDT 3.13" (79.5mm) Max. 8PDT 3.53" (89.7mm) Max. 12PDT 3.88" (98.6mm) Max. Coil and Contact Terminal Screws #5-40 Supplied 2 COIL ...