General Purpose Relays
PCB Relays
Potter & Brumfield
Miniature PCB Relay T77
n
n
n
n
n
3 to 10A rating
Small size
Creepage spacings of 6.5mm between coil and contacts
4,000Vrms coil to contact dielectric strength
UL Class F approved insulation system
Typical applications
Appliances, HVAC, industrial control
V Z
Approvals
VDE 40010327, UL E29244
Technical data of approved types on request
Coil Data
Coil voltage range
5 to 48VDC
2
Class E, F
Operative range, IEC 61810
Coil insulation system according UL
Contact Data
Contact arrangement
Rated voltage
Max. switching voltage
Rated current
1 form A, 1 NO
30VDC, 250VAC
30VDC, 277VAC
3 to 10A
Coil versions, DC coil, sensitive type, 200mW
Coil
code
Rated
voltage
VDC
3
5
6
9
12
24
48
Operate
voltage
VDC
2.25
3.75
4.5
6.75
9
18
Release
voltage
VDC
0.15
0.25
0.3
0.45
0.6
1.2
Coil
resistance
Ω 10ꢀ
45
125
180
405
720
2880
11520
Rated coil
power
mW
Contact material
3A type: Ag
003
005
006
009
012
024
048
200
200
200
200
200
200
200
10A type: AgCdO
100mA at 5VDC
360 ops./h
Min. recommended contact load
Frequency of operation
Operate/release time max.
Electrical endurance
10ms/4ms
3A type
5A type
3A, 250VAC res., -30°C to +55°C
5A, 250VAC res., -30°C to +40°C
5A, 250VAC res, -30°C to +85°C
100x103 ops.
36
2.4
100x103 ops.
10x103 ops.
100x103 ops.
10x103 ops.
All figures are given for coil without pre-energization, at ambient temperature +23°C
10A type 10A, 250VAC res., -30°C to +55°C
10A, 250VAC res., -30°C to +85°C
Contact ratings
Coil versions, DC coil, standard type, 450mW
Coil
code
Rated
voltage
VDC
3
5
6
9
12
24
48
Operate
voltage
VDC
2.1
3.5
4.2
6.3
8.4
16.8
33.6
Release
voltage
VDC
0.15
0.25
0.3
0.45
0.6
1.2
Coil
resistance
Ω 10ꢀ
20
55.6
80
180
320
1280
5120
Rated coil
power
mW
3A type: 3A 250VAC
5A type: 5A 250VAC
10A type: 10A 250VAC
003
005
006
009
012
024
048
450
450
450
450
450
450
450
Mechanical endurance, DC coil
10x106 operations
2.4
All figures are given for coil without pre-energization, at ambient temperature +23°C
Electrical endurance
Operate time
Coil temperature rise
100
12
60
Contact Rating 10,
120VAC Res.
10
8
50
40
10
6
4
2
30
OperateTime
20
Contact Rating 3,
250VAC Res.
10
ReleaseTime
1
0.2
0.1
0.3
0.4
0.5
0.6 0.7
0
1
2
3
4
5
6
7
8
9
10
0.2
0.1
0.3
0.4
0.5
0.6 0.7
Contact Current (A)
Coil Power (W)
Coil Power (W)
1
10-2011, Rev. 1011
www.te.com
© 2011 Tyco Electronics Corporation,
a TE Connectivity Ltd. company
Datasheets and product specification
according to IEC 61810-1 and to be used
only together with the ‘Definitions’ section.
Datasheets and product data is subject to the
terms of the disclaimer and all chapters of
the ‘Definitions’ section, available at
http://relays.te.com/definitions
Datasheets, product data, ‘Definitions’ sec-
tion, application notes and all specifications
are subject to change.
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