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Low-voltage Circuit Breakers

Earth Leakage Relays

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  • Feature
  • Specification
  • Standards
  • Discontinued
Contents

Lineup

Model   Interchangeable earth leakage relay (*1)
  Compact standard model General-purpose model Harmonic/surge-resistant type
  Electric self-holding type Mechanical self-holding type Electric self-holding type
Hole
diameter
(mm)		 NV-ZBA NV-ZSA NV-ZHA
ZCT model to be combined (*6) 15 ZT15B － ZT15B － ZT15B
30 ZT30B － ZT30B － ZT30B
40 ZT40B － ZT40B － ZT40B
60 － ZT60B － ZT60B ZT60B
80 － ZT80B － ZT80B ZT80B
100 － ZT100B － ZT100B ZT100B
Image NV-ZBA NV-ZSA NV-ZHA外観
Phase line type 3φ4W, 3φ3W, 1φ3W, 1φ2W
Control voltage VAC JIS 100/200 selectable 100/200 selectable
200/415 selectable		 －
UL/JIS (*2)
UL/CE (*3)		 － － 120/240 selectable
240/440 selectable
JIS High-speed
type		 Rated sensitivity current mA 30/100/200/500
selectable		 100/200/500
selectable		 30/100/200/500
selectable		 100/200/500
selectable		 －
Max. operating time (s) 0.1 0.1
Time-delay
type		 Rated sensitivity current mA 100/200/500 selectable 100/200/500 selectable
(200/500/1000 selectable)
Operating time (s) (*5) 0.3/0.8/1.6 selectable 0.3/0.8/1.6 selectable
Min. inertial non-operating time (s) 0.1/0.5/1.1 0.1/0.5/1.1
UL/JIS High-speed
type		 Rated sensitivity current mA － － 30　50
Max. operating time (s) 0.1
Time-delay
type		 Rated sensitivity current mA 100/200/500 selectable
Operating time (s) (*5) 0.1/0.45/1.0 selectable
Min. inertial non-operating time (s) －/0.1/0.5
UL/CE High-speed
type		 Rated sensitivity current mA － － 30/50/100 selectable
Max. operating time (s) at 5IΔn 0.04
Time-delay
type		 Rated sensitivity current mA 100/300/500 selectable
300/500/1000 selectable
Max. operating time (s) at 5IΔn (*5) 0.45/1.0 selectable
Min. inertial non-operating time (s) at 5IΔn 0.1/0.5
Earth leakage indication system Electric type (LED) Mechanical type (button) Electric type (LED)
Resetting method Press the reset button
or turn off
the control power supply once.		 Press the reset button
for combined
use with the earth leakage indicator.		 Press the reset button
or turn off
the control power supply once.
Built-in
contact		 Configuration 1c 1a1c 1a1c
Continuous current (A) 5 5 5
Contact capacity (A)
  cosφ=1
L/R=0		 cosφ=0.4
L/R=0.007
100VAC 5 2
200VAC 5 2
24VDC 5 2
  cosφ=1
L/R=0		 cosφ=0.4
L/R=0.007
100VAC 5 3
200VAC 3 2
415VAC 2 1
30VDC 4 3
100VDC 0.4 0.4
200VDC 0.2 0.2
  cosφ=1
L/R=0		 cosφ=0.4
L/R=0.007
120VAC 5 2
240VAC 5 2
24VDC 5 2
Use an auxiliary relay
for 440VAC contacts.
Connection Front
connection		 ⦿Clamp terminal ⦿Clamp terminal ⦿Clamp terminal
Built-in
connection		 － ○Clamp terminal ○Clamp terminal
Standard attachment parts
(Front connection)		 Main unit mounting screw
Mass (kg) Relay 0.3 0.4 0.4
External
accessories		 Terminal cover ○ (TC-ZBA) ○ (TC-ZSA) ○ (TC-ZSA) (*7)
Mounting frame for the built-in connection － ○ (FP-NVZS) ○ (FP-NVZS)
IEC 35mm rail (DIN rail) mounting tool ○ (DIN-ZBA) － －
Max. consumption (VA) 3
Conforming
standard		 US UL standard
(UR certified)		 － － UL 1053
Recognized
component
(File No.E196562)
European CE marking － － Declaration for conformity
IEC 60947-2
EN 60947-2
Model   Interchangeable earth leakage relay (*1)
  Harmonic/surge-resistant type For leakage alarms Plug-in type
  Mechanical self-holding type Self-resetting type Electric self-holding type
Hole
diameter
(mm)		 NV-ZLA NV-ZAA NV-ZP
ZCT model to be combined (*6) 15 ZT15B ZT15B － ZT15B －
30 ZT30B ZT30B － ZT30B －
40 ZT40B ZT40B － ZT40B －
60 ZT60B － ZT60B － ZT60B
80 ZT80B － ZT80B － ZT80B
100 ZT100B － ZT100B － ZT100B
Image NV-ZLA外観 NV-ZAA外観 NV-ZP外観
Phase line type 3φ4W, 3φ3W, 1φ3W, 1φ2W
Control voltage VAC JIS － 100/200 selectable
415		 100　200
UL/JIS (*2)
UL/CE (*3)		 120/240 selectable
240/440 selectable
480		 － －
JIS High-speed
type		 Rated sensitivity current mA － － 30/200/500
selectable		 200/500
selectable
Max. operating time (s) 0.1
Time-delay
type		 Rated sensitivity current mA 30/100/200/500
selectable		 100/200/500
selectable		 200/500 selectable
Operating time (s) (*5) 0.1/0.45/1.0 selectable (*4) 0.3
Min. inertial non-operating time (s) －/0.1/0.5 0.1
UL/JIS High-speed
type		 Rated sensitivity current mA 30　50 － －
Max. operating time (s) 0.1
Time-delay
type		 Rated sensitivity current mA 100/200/500 selectable
Operating time (s) (*5) 0.1/0.45/1.0 selectable
Min. inertial non-operating time (s) －/0.1/0.5
UL/CE High-speed
type		 Rated sensitivity current mA 30/50/100 selectable － －
Max. operating time (s) at 5IΔn 0.04
Time-delay
type		 Rated sensitivity current mA 100/300/500 selectable
300/500/1000 selectable
Max. operating time (s) at 5IΔn (*5) 0.45/1.0 selectable
Min. inertial non-operating time (s) at 5IΔn 0.1/0.5
Earth leakage indication system Mechanical type (button) Electric type (LED) Electric type (LED)
Resetting method Press the reset
button for combined
use with the earth leakage indicator.		 Automatically resets
when leakage current is eliminated.
Or turn off the control power supply once.		 Press the reset button
or turn off
the control power supply once.
Built-in
contact		 Configuration 1a1c 1c 1c
Continuous current (A) 5 5 5
Contact capacity (A)
  cosφ=1
L/R=0		 cosφ=0.4
L/R=0.007
120VAC 5 3
240VAC 3 2
480VAC 1 1
30VDC 3 3
  cosφ=1
L/R=0		 cosφ=0.4
L/R=0.007
120VAC 5 2
200VAC 5 2
24VDC 5
Use an auxiliary relay for
415VAC contacts.
  cosφ=1
L/R=0		 cosφ=0.4
L/R=0.007
100VAC 5 4
200VAC 5 2
30VDC 5 1.5
Connection Front
connection		 ⦿Clamp terminal ⦿Clamp terminal ⦿Clamp terminal
Built-in
connection		 ○Clamp terminal － ○Clamp terminal
Standard attachment parts
(front connection)		 Main unit mounting screw
Mass (kg) Relay 0.4 0.3 0.3
External accessories Terminal cover ○ (TC-ZSA) (*7) ○ (TC-ZBA) －
Mounting frame for the built-in connection ○ (FP-NVZS) － ○ (FP-NVZP)
IEC 35mm rail (DIN rail) mounting tool － ○ (DIN-ZBA) －
Max. consumption (VA) 3 2
Conforming
standard		 US UL standard
(UR certified)		 UL 1053
Recognized
component
(File No.E196562)		 － －
European CE marking Declaration for conformity
IEC 60947-2
EN 60947-2		 － －
  • Notes:
  • *1Interchangeable earth leakage relays can be freely combined with relays and our ZCTs.
    However, 30mA sensitive products (excluding NV-ZHA/ZLA) are only available in combination with the ZT15B, ZT30B, and ZT40B.
  • *2Indicates the UL control voltage. This product is simultaneously marked for UL (cURus) and JIS.
    JIS voltage indication is 100/200V selectable for 120/240V selectable, 200/415V selectable for 240/440V selectable, and 460V for 480V.
    Please specify "UL/JIS" when ordering.
  • *3Indicates the UL control voltage. This product is simultaneously marked for UL (cURus) and JIS.
    CE voltage indication is 120/230V selectable for 120/240V selectable, 230/440V selectable for 240/440V selectable.
    Please specify "UL/JIS" when ordering.
  • *4This is a high-speed/time-delay switching type. The product is marked with the maximum value.
  • *5Operating time ranges from 0.15 to 0.45s for 0.3s and 0.45s, 0.6 to 1.0s for 0.8s and 1.0s, and 1.2 to 2.0s for 1.6s.
  • *6Can be combined with the interchangeable ZCT with a primary conductor. Refer to the general catalog for details.
  • *7Not UL certified.
  • Remarks:
  • 1Relays with ratings shown in parentheses ( ) are manufactured to order.
  • 2The CE marking is a self-declaration for the purpose of tripping the MCCB in the event of ground fault when combined with a Mitsubishi Electric’s MCCB with CE marking (with a shunt trip device).
  • 3NV-ZBA/ZSA/ZAA/ZP
    Control voltage Applicable circuit voltages Voltage fluctuation range where
    the earth leakage protection can operate.
    100V 100/110V 80 to 121V
    200V 200/220V 160 to 242V
    415V 400/415/440V 320 to 484V
  • 4NV-ZHA/ZLA
    Control voltage Applicable circuit voltages Voltage fluctuation range where
    the earth leakage protection can operate.
    120V 100/110/120V 80 to 132V
    240V 200/220/230/240V 160 to 242V
    415V 380/400/415/440V 320 to 484V
    480V 460/480V 368 to 528V

    Canadian CSA standards
    C22.2 　 No.144

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