187 series
20-25 Amp Power Relays
File E38802
File LR54109
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 confirm the product meets
the requirements for a given application.
Features
Coil Data @ 25C (continued)
AC coils 6-240VAC 50/60 Hz., DC 6-110VDC. Temperature Rise:
One or two pole models with single or double throw contacts. AC Coils:
Nominal Voltage: 35C for open models.
187 relays with 2 form A or 2 form B contacts are rated 25 amps;
45C for enclosed models.
187 relays with other contact arrangements are rated 20 amps.
25% Overvoltage: 55C for open models.
.250" combination quick connect/solder terminals or PC terminals.
65C for enclosed models.
Various mounting options include stud, core, bracket, flange, PC board.
DC Coils:
Open-style relay or with dust cover.
Nominal Voltage: 35C for open models.
40C for enclosed models.
25% Overvoltage: 50C for open models.
55C for enclosed models.
Contact Data @ 25C
Arrangements: 1 Form X (SPST-NO-DM), 1 Form Y (SPST-NC-DB),
2 Form C (DPDT), 2 Form A (DPST-NO) and 2 Form B (DPST-NC). Coil Data
Material: Silver-cadmium oxide, .25 (6.5mm) dia. or
DC Must
Fine silver, .187 (4.75mm) dia.
Nominal Resistance Operate
Expected Mechanical Life: 10 million operations.
Voltage in Ohms Voltage
Initial Contact Resistance: 50 milliohms. 10%
6 32 4.5
DC 12 120 9.0
Coils 24 470 18.0
Contact Ratings
48 1,800 36.0
Contact Code UL Ratings Expected
110 11,000 82.5
& Description Life
6 4.2 5.1
-200 20A @ 120/240VAC 100,000
AC 12 18 10.2
1/4 (6.25 mm) Dia. 10A @ 480/600VAC ops.
Coils 24 72 20.4
Silver Cadmium 3/4 HP @ 120VAC,
120 1,700 102.0
Oxide 1 1/2 HP @ 240VAC 208 5,400 176.8
240 7,200 204.0
2 HP @ 208/277VAC*
17FLA, 65LRA @ 300VAC
20A @ 28VDC
-500 5A @ 120/240VAC 100,000
Operate Data @ 25C
3/16 (4.75 mm) Dia. 2A @ 480/600VAC ops.
Fine Silver 1/8 HP @ 120VAC,
Must Operate Voltage:
1/4 HP @ 240VAC
DC Coils: 75% of nominal.
2A (7.2A inrush) @ 24VAC
AC Coils: 85% of nominal.
5A @ 28VDC
Operate Time (Excluding Bounce): 20 milliseconds, max, at nominal
voltage, no coil suppression.
-600 25A @ 120/240VAC 100,000
Release Time (Excluding Bounce): 10 milliseconds, max, at nominal
1/4 (6.25 mm) Dia. 10A @ 480/600VAC ops.
voltage, no coil suppression.
Silver Cadmium 3/4 HP @ 120VAC,
Oxide 1 1/2 HP @ 240VAC
2 HP @ 208/277VAC*
17FLA, 65LRA @ 300VAC
Environmental Data
Temperature Range (50/60 Hz operation, based on 105C limit):
*2 HP rating at reduced electrical life, consult factory.
Operating
AC Coils: -45C to +60C for open models.
-45C to +45C for enclosed models.
DC Coils: -45C to +80C for open models.
Initial Dielectric Strength -45C to +70C for enclosed models.
Storage
Between Open Contacts: >75 0V rms, 60 Hz.
All: -65C to +100C.
Between All Other Mutually Isolated Elements: >2,500V rms, 60 Hz.
Shock: 15gs, 11 1 ms (non-operating, no mechanical damage).
Vibration: .1" double amplitude or 10 gs, 10-55 Hz. (operating, no contact
chatter).
Coil Data @ 25C
Voltage: 6-110VDC and 6-240VAC.
Nominal Power:
DC Coils: 1.2 Watts.
Mechanical Data
AC Coils: 3.0VA.
Duty Cycle: Continuous at up to 25% overvoltage. Termination: .250" quick connect/solder; and PC board.
Initial Insulation Resistance: 1,000 megohms, min. @ 500VDC Enclosure: Open or polycarbonate dust cover.
Insulation: Class B, 130C. Weight: 3 oz. (86g) approximately.
Issued 5-10 Dimensions are in inches over Dimensions are shown for reference South America: 55-11-2103-6000
USA: 1-800-522-6752
www.tycoelectronics.com (millimeters) unless otherwise purposes only. Specifications and Hong Kong: 852-2735-1628
Canada: 1-905-470-4425
specified. availability subject to change. Japan: 81-44-844-8013
Mexico: 01-800-733-8926
UK: 44-8706-080208 1
C. America: 52-55-1106-0803Outline Dimensions
Typical Part No. > 187- 32 T 2 00
1. Basic Series and Type:
187 = Open or Enclosed 20-25 Amp Power Relay.
2. Enclosure and Terminals:
1 = Open, Solder/Quick Connect Terminals.
2 = Plain Enclosure with 6-32 Tapped Core, Solder/Quick Connect Terminals
3 = Flanged Enclosure, Solder/Quick Connect Terminals
4 = Plain Enclosure with Mounting Bracket and Stud on Closed End, Solder/Quick Connect Terminals
5 = Plain Enclosure with Bottom Mounted 6-32 Stud, Solder/Quick Connect Terminals
6 = Plain Enclosure with Bottom Mounted Bracket, Solder/Quick Connect Terminals
7 = Open, Printed Circuit Board Terminals
8 = Plain Enclosure, Printed Circuit Board Terminals
0 = Special
3. Contact Arrangement:
2 = 2 Form C (DPDT) 6 = 2 Form A (DPST-NO) 7 = 2 Form B (DPST-NC) 0 = Special
8 = 1 Form X (SPST-NO-DM) 9 = 1 Form Y (SPST-NC-DB)
4. Coil:
A = 6VDC C = 24VDC F = 110VDC N = 6VAC Q = 24VAC U = 240VAC S = Special
B = 12VDC D = 48VDC P = 12VAC T = 120VAC M = 208VAC
5. Contacts:
2 = 1/4 (6.25mm) Diameter, Silver-Cadmium Oxide. 0 = Special
5 = 3/16 (4.75mm) Diameter, Pure Fine Silver.
6 = 1/4 (6.25mm) Diameter, Silver-Cadmium Oxide (Requires Contact Arrangement 6 [2 form A] or 7 [2 form B] in step 3 above).
6. Standard or Special:
00 = Standard F0 = Class F Coil A1-Z9 = Special Construction or Feature
L0 = Lamp in parallel with coil M0 = Magnetic blowout
NOTE: No sockets are available for this relay.
Our authorized distributors are more likely to maintain the following items in stock for immediate delivery.
187-32B200 187-32D200 187-32Q200 187-32U200
187-32T200
187-32C200 187-32F200
Outline Dimensions
Open 187-1 Dust Cover 187-2
Dust Cover with Mounting Flange 187-3 Dust Cover with Bracket and Stud on End 187-4
Issued 5-10 Dimensions are in inches over Dimensions are shown for reference USA: 1-800-522-6752 South America: 55-11-2103-6000
www.tycoelectronics.com (millimeters) unless otherwise purposes only. Specifications and Canada: 1-905-470-4425 Hong Kong: 852-2735-1628
specified. availability subject to change. Mexico: 01-800-733-8926 Japan: 81-44-844-8013
C. America: 52-55-1106-0803 UK: 44-8706-080208
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