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278435
Model code: ZB12-1

Eaton Moeller® series ZB Overload relay, ZB12, Ir= 0.6 - 1 A, 1 N/O, 1 N/C, Direct mounting, IP20

General specifications

Product Name
Eaton Moeller® series ZB Thermal overload relay
Catalog Number
278435
Model Code
ZB12-1
EAN
4015082784355
Product Length/Depth
88 mm
Product Height
67 mm
Product Width
45 mm
Product Weight
0.141 kg
Certifications
IEC/EN 60947-4-1
UL 60947-4-1
CSA-C22.2 No. 60947-4-1-14
VDE 0660
UL
UL Category Control No.: NKCR
CSA Class No.: 3211-03
IEC/EN 60947
UL File No.: E29184
CSA
CE
CSA File No.: 012528
Global Catalog
278435

Product specifications

Features
Trip-free release
Test/off button
Phase-failure sensitivity (according to IEC/EN 60947, VDE 0660 Part 102)
Reset pushbutton manual/auto
10.10 Temperature rise
The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices.
10.11 Short-circuit rating
Is the panel builder's responsibility. The specifications for the switchgear must be observed.
10.12 Electromagnetic compatibility
Is the panel builder's responsibility. The specifications for the switchgear must be observed.
10.13 Mechanical function
The device meets the requirements, provided the information in the instruction leaflet (IL) is observed.
10.2.2 Corrosion resistance
Meets the product standard's requirements.
10.2.3.1 Verification of thermal stability of enclosures
Meets the product standard's requirements.
10.2.3.2 Verification of resistance of insulating materials to normal heat
Meets the product standard's requirements.
10.2.3.3 Resist. of insul. mat. to abnormal heat/fire by internal elect. effects
Meets the product standard's requirements.
10.2.4 Resistance to ultra-violet (UV) radiation
Meets the product standard's requirements.
10.2.5 Lifting
Does not apply, since the entire switchgear needs to be evaluated.
10.2.6 Mechanical impact
Does not apply, since the entire switchgear needs to be evaluated.
10.2.7 Inscriptions
Meets the product standard's requirements.
10.3 Degree of protection of assemblies
Does not apply, since the entire switchgear needs to be evaluated.
10.4 Clearances and creepage distances
Meets the product standard's requirements.
10.5 Protection against electric shock
Does not apply, since the entire switchgear needs to be evaluated.
10.6 Incorporation of switching devices and components
Does not apply, since the entire switchgear needs to be evaluated.
10.7 Internal electrical circuits and connections
Is the panel builder's responsibility.
10.8 Connections for external conductors
Is the panel builder's responsibility.
10.9.2 Power-frequency electric strength
Is the panel builder's responsibility.
10.9.3 Impulse withstand voltage
Is the panel builder's responsibility.
10.9.4 Testing of enclosures made of insulating material
Is the panel builder's responsibility.
Pollution degree
3
Class
CLASS 10 A
Climatic proofing
Damp heat, constant, to IEC 60068-2-78
Damp heat, cyclic, to IEC 60068-2-30
Rated impulse withstand voltage (Uimp)
6000 V AC
4000 V (auxiliary and control circuits)
Rated operational current (Ie) at AC-15, 220 V, 230 V, 240 V
1.5 A
Rated operational current (Ie) at AC-15, 380 V, 400 V, 415 V
0.9 A
Rated operational current (Ie) at DC-13, 110 V
0.4 A
Rated operational current (Ie) at DC-13, 220 V, 230 V
0.2 A
Rated operational current (Ie) at DC-13, 24 V
0.9 A
Rated operational current (Ie) at DC-13, 60 V
0.75 A
Rated operational current for specified heat dissipation (In)
1 A
Static heat dissipation, non-current-dependent Pvs
0 W
Stripping length (control circuit cable)
8 mm
Stripping length (main cable)
10 mm
Voltage rating - max
600 VAC
Product category
  • Accessories
  • Overload relay ZB up to 150 A
Protection
Finger and back-of-hand proof, Protection against direct contact when actuated from front (EN 50274)
Frame size
ZB12
Adjustable current range - max
1 A
Adjustable current range - min
0.6 A
Ambient operating temperature - max
55 °C
Ambient operating temperature - min
-25 °C
Ambient operating temperature (enclosed) - max
40 °C
Ambient operating temperature (enclosed) - min
25 °C
Conventional thermal current Ith of auxiliary contacts (1-pole, open)
6 A
Equipment heat dissipation, current-dependent Pvid
6.9 W
Heat dissipation capacity Pdiss
0 W
Heat dissipation per pole, current-dependent Pvid
2.3 W
Number of auxiliary contacts (change-over contacts)
0
Number of auxiliary contacts (normally closed contacts)
1
Number of auxiliary contacts (normally open contacts)
1
Number of contacts (normally closed contacts)
1
Number of contacts (normally open contacts)
1
Overload release current setting - max
1 A
Overload release current setting - min
0.6 A
Rated operational voltage (Ue) - max
690 V
Rated operational current (Ie) at AC-15, 120 V
1.5 A
Electrical connection type of main circuit
Screw connection
Reset function
Push-button
Automatic
Screwdriver size
1 x 6 mm, Terminal screw, Standard screwdriver
2, Terminal screw, Pozidriv screwdriver
Mounting method
Direct attachment
Direct mounting
Degree of protection
IP20
Overvoltage category
III
Safe isolation
240 V AC, Between auxiliary contacts, According to EN 61140
440 V AC, Between main circuits, According to EN 61140
440 V AC, Between auxiliary contacts and main contacts, According to EN 61140
Screw size
M3.5, Terminal screw, Control circuit cables
M4, Terminal screw
Shock resistance
10 g, Mechanical, Sinusoidal, Shock duration 10 ms
Short-circuit current rating (high fault at 600 V)
1 A, Class J/CC, max. Fuse, SCCR (UL/CSA)
100 kA, Fuse, SCCR (UL/CSA)
Switching capacity (auxiliary contacts, pilot duty)
B300 at opposite polarity, AC operated (UL/CSA)
B600 at opposite polarity, AC operated (UL/CSA)
R300, DC operated (UL/CSA)
Short-circuit protection rating
Max. 6 A gG/gL, fuse, Without welding, Auxiliary and control circuits
4 A gG/gL, Fuse, Type “2” coordination
25 A gG/gL, Fuse, Type “1” coordination
Suitable for
Branch circuits, (UL/CSA)
Temperature compensation
≤ 0.25 %/K, residual error for T > 40°
Continuous
Terminal capacity (flexible with ferrule)
2 x (0.75 - 2.5) mm², Control circuit cables
1 x (0.75 - 2.5) mm², Control circuit cables
2 x (1 - 4) mm², Main cables
1 x (1 - 4) mm², Main cables
Terminal capacity (solid)
1 x (0.75 - 4) mm², Control circuit cables
1 x (1 - 6) mm², Main cables
2 x (1 - 6) mm², Main cables
2 x (0.75 - 4) mm², Control circuit cables
Terminal capacity (solid/stranded AWG)
18 - 8, Main cables
2 x (18 - 14), Control circuit cables
Tightening torque
1.8 Nm, Screw terminals, Main cables
1.2 Nm, Screw terminals, Control circuit cables

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