2Ratings and Specifications
Earth Leakage Relays¤0TZS series (Harmonics/surge with countermeasure)

Category

Separate typeMedium sensitivity Instantaneous
High-sensitivity
Instantaneous tripping type tripping / time delay tripping typeType

TZS-15HD ⑧
TZS-24HD
TZS-40HD
TZS-68HD
TZS-100HD●●

Phase and wires①1ø2 W, 1ø3 W
3 ø3 W, 3 ø4W

TZS-15MD ⑨
TZS-24MD
TZS-40MD
TZS-68MD
TZS-100MD●●Notes:◉: Standard. This configuration used unless otherwise
specified.
○: Specify when ordering.
●: “yes” or “available”.
①: Can also be applied to the ground wire.
②: Applicable rated voltage For 100V: 100 to 120V,
For 200V: 200 to 240V③: Terminals for 100V AC and 200V AC are provided.
Caution: do not apply 100V AC to the 200V ACterminal., burnout can result.

Outside view
The monitor (ZCT) is shown in the table below.

④: For 415V AC or 440V AC, please contact TERASAKI.
⑤: Operating time range and Non-operating time range.
■Ratings
Rated control voltage, V AC②

Rated operating time (sec)

0.1 or less

External dimensions mm Width × Height × Depth
Weight (FC) kg■Connections and Mountings
Front-connected (FC)Flush-mounted (FP)
■Standard features
Earth leakage detection (Current operation type)Output contact ⑥
Earth leakage indication
Reset function
Power source required

60×78×100
0.22

100 selectable ③④
200
80〜132160〜264
100
200
selectable
500
1000
0.1 or less
0.3
0.5
selectable ⑤
12
60×78×100
0.22

◉

◉

○○

Electronic
1C
LED (Red)
Push button ⑦
1VA or more

Electronic
1C
LED (Red)
Push button ⑦
1VA or more

CE marking

Non ⑩7-251

Non ⑩7-251

Applicable range Ｖ

AC100
AC200

100 selectable ③④
200
80〜132160〜264

Rated sensitivity current [mA]
30

Page of characteristics and outline dimensions

Rated operating time Operating time range
(sec)
(sec)
0.1 or less
0.1 or less
0.3
0.2〜0.36
0.5
0.4〜0.61
0.8〜1.22
1.3〜2⑥: Ratings of output contact.
Voltage
120V AC
240V AC
30V DC

COSø＝1
6A
6A
6A

COSø＝0.4 (L/R＝7ms)
3.5A
3.5A
3A

5V DC
10mA

Remarks (1): With the medium sensitivity
instantaneous tripping / time delay
tripping type, you can switch the rated
sensitivity current to 100mA, 200mA,500mA, or 1000mA, and switch theoperating time to 5 stages of 0.1 seconds
or less, 0.3, 0.5, 1, or 2 seconds with theDIP switch. The rated sensitivity current is
set to 100 mA and the operating time isset to 0.1 seconds before delivery.

TZS-15

TZS-24

TZS-40TZS-68TZS-100

ø15

ø24

0.2

0.3

ø40
0.7

ø68
1.1

ø100
2.0

61
8
6.0
61
8
6.0
49
5.5
5.0

139
30
10.5
139
30
10.5
115
22
9.5

298
100
17298
100
17257
80
15.5

650
325
29650
325
29556
250
261185
850
45118585045992
60038

Outside view

Diameter of transit part [mm]Weight [kg]Applicable numbers, size and continuous currentof wires (IV cable wires)max. continuous current A
2 wiresmax. wire size mm2
max.diameter of wire mm
max. continuous current A
3 wiresmax. wire size mm2
max.diameter of wire mm
max. continuous current A
4 wiresmax. wire size mm2
max.diameter of wire mm

Minimum load⑦: The output contacts remain operational until theRESET button is pressed. If the control power supply
fails, the contacts automatically reset.
⑧: Type of the relay displayed is TZS-HD.
⑨: Type of the relay displayed is TZS-MD.
⑩: The earth leakage relay TZS-AD for overseas withCE marking is available. Please contact us for details.

Ratings of ZCTTypeNon-operating time
range (sec)
−0.15
0.38
0.7
1.25