ABB Thermal overload relay T16 Data Sheet

Data sheet

Thermal overload relay T16

Thermal overload relays are economic
electromechanical protection devices for
the main circuit. They are used mainly
to protect motors against overload and
phase failures. Starter combinations are
setup together with contactors.

2CDC231001S0010

Description

– Overload protection – trip class 10
– Phase loss sensitivity
– Temperature compensation from -25 … +60 °C
– Adjustable current setting for overload protection
– Automatic or manual reset selectable
– Suitable for three- and single-phase application
– Trip-free mechanism
– Status indication
– STOP and TEST function
– Direct mounting onto mini contactors or block contactors

Approvals

cULus UL 508

A

CB scheme

K

CCC

E

ABS

RINA

DNV

Lloyd’s Register

P

Marks

a

CE

Order data

T16 screw terminal
For B6/B7/VB6/VB7 mini contactors
For AS block contactors

Setting range AType Order code

0.10 ... 0.13 T16-0.13 1SAZ711201R1005 1 0.100

0.13 ... 0.17 T16-0.17 1SAZ711201R1008 1 0.100

0.17 ... 0.23 T16-0.23 1SAZ711201R1009 1 0.100

0.23 ... 0.31 T16-0.31 1SAZ711201R1013 1 0.100

0.31 ... 0.41 T16-0.41 1SAZ711201R1014 1 0.100

0.41 ... 0.55 T16-0.55 1SAZ711201R1017 1 0.100

0.55 ... 0.74 T16-0.74 1SAZ711201R1021 1 0.100

0.74 ... 1.00 T16-1.0 1SAZ711201R1023 1 0.100

1.00 ... 1.30 T16-1.3 1SAZ711201R1025 1 0.100

1.30 ... 1.70 T16-1.7 1SAZ711201R1028 1 0.100

1.70 ... 2.30 T16-2.3 1SAZ711201R1031 1 0.100

2.30 ... 3.10 T16-3.1 1SAZ711201R1033 1 0.100

3.10 ... 4.20 T16-4.2 1SAZ711201R1035 1 0.100

4.20 ... 5.70 T16-5.7 1SAZ711201R1038 1 0.100

5.70 ... 7.60 T16-7.6 1SAZ711201R1040 1 0.100

7.60 ... 10.0 T16-10 1SAZ711201R1043 1 0.104

10.0 ... 13.0 T16-13 1SAZ711201R1045 1 0.104

13.0 ... 16.0 T16-16 1SAZ711201R1047 1 0.104

Packing
unit

PCE

Weight
per PCE

kg

Suitable for mounting on:
AS09 … AS16
B6/BC6, B7/BC7
VB6/VBC6, VB7/VBC7

Functional description

3~1~

A

2CDC231001S0010

1

2

3

4

5

6

7

8

1

Terminals (1L1, 3L2, 5L3)

2

Current setting range

Adjustable current setting for overload protection

3

Status indication

4

RESET button

Automatic or manual reset selectable

5

Signaling contacts 97-98

6

Terminals 2T1, 4T2, 6T3

7

Tripping contacts 95-96

8

STOP button

Application / internal function

The thermal overload relays are three pole relays with bimetal tripping elements (1 per pole). The motor current flows through
the bimetal tripping elements and heats them directly and indirectly. In case of an overload (over current), the bimetal
elements become bent as a result of the heating. This leads to a release of the relay and a change of the contacts switching
position (95-96 / 97-98). The contact 95-96 is used to control the load contactor.

The overload relays have a setting scale in Amperes, which allows the direct adjusting of the relay without any additional
calculation. In compliance with international and national standards, the setting current is the rated current of the motor
and not the tripping current (no tripping at 1.05 x I, tripping at 1.2 x I; I = setting current). The relays are constructed in way
that they protect themselves in the event of an overload. The overload relay has to be protected against short-circuit. The
appropriate short-circuit protection devices are shown in the table.

Operation mode

2CDC232001F0010

Contact 95-96 Contact 97-98 Status indication Comment

Trip state open closed

RESET state closed open ON

TEST manual reset mode open closed

TEST auto reset mode open closed while TEST is operated

STOP while device is in trip state open closed STOP button has no function

STOP while device is in RESET state open open while STOP button is pressed

Wiring diagram

RESET

M

9795

2T1 4T2 6T3

2 - 2CDC106020D0201

TEST

STOP

9896

2CDC232001F0009

Resistance and power loss per pole and short-circuit protection device

switching frequency

78

tripping time

(s)

9.1 0.36"8.6 0.34"

Type Setting range Resistance per

pole

lower value

A

upper value

A

Ω

Power loss Short-circuit

protection device

at lower value

W

at upper value Wcoordination

type 2

T16-0.13 0.10 0.13 106.51 1.1 2.0 0.5 A, Type T

T16-0.17 0.13 0.17 62.28 1.1 2.0 1.0 A, Type T

T16-0.23 0.17 0.23 37.43 1.1 2.0 1.0 A, Type T

T16-0.31 0.23 0.31 20.60 1.1 2.0 1.0 A, Type T

T16-0.41 0.31 0.41 11.42 1.1 2.0 2.0 A, Type gG

T16-0.55 0.41 0.55 6.35 1.1 2.0 2.0 A, Type gG

T16-0.74 0.55 0.74 3.62 1.1 2.0 4.0 A, Type gG

T16-1.0 0.74 1.00 1.920 1.1 2.0 6.0 A, Type gG

T16-1.3 1.00 1.30 1.065 1.1 2.0 6.0 A, Type gG

T16-1.7 1.30 1.70 0.623 1.1 2.0 10.0 A, Type gG

T16-2.3 1.70 2.30 0.340 1.1 2.0 10.0 A, Type gG

T16-3.1 2.30 3.10 0.187 1.1 2.0 10.0 A, Type gG

T16-4.2 3.10 4.20 0.102 1.1 2.0 20.0 A, Type gG

T16-5.7 4.20 5.70 0.059 1.1 2.0 20.0 A, Type gG

T16-7.6 5.70 7.60 0.031 1.1 2.0 35.0 A, Type gG

T16-10 7.60 10.00 0.0193 1.1 2.0 35.0 A, Type gG

T16-13 10.00 13.00 0.0131 1.3 2.2 40.0 A, Type gG

T16-16 13.00 16.00 0.0078 1.3 2.2 40.0 A, Type gG

Technical diagrams

Intermittent periodic duty

(Op/h)

140

120

100

80

60

40

20

t = 1 s

a

t = 1.5 s

a

t = 3 s

a

t = 5 s

a

0

020406080100 (%)

duty ratio

Motor starting time

Dimensions

in mm and inches

1.2 0.05"

t = 0.5 s

a

ABB827833

40

20

11

10

6

4
3

2

1

3456

multiple of setting current

Tripping curve, starting from cold state

36.9 1.45" 2.4 0.09"

7.4

ABB836246

8.1 0.32" 14.4 0.57"

45 1.77"

76.7 3.02"

12.35 0.49"9.1 0.36"

35.6 1.4"

48.2 1.9"

53.5 2.11"

2CDC232008F0008

2CDC106020D0201 - 3