- Products
- Catalogs
- News & Trends
- Exhibitions
ZBK
ZBK
Overview
This document provides detailed technical specifications, product codes, dimensions, and accessory information for the ZBK series of switch-disconnectors. These devices are designed for electrical switching and disconnection applications, compliant with standards such as VDE 0660, IEC 60947-3, and IEC 60947-5-1.
Product Range and Configurations
- Available in multiple pole configurations: 3P, 3P+N, 4P, 6P, and 8P.
- Rated current options include 20A, 25A, 40A, 63A, 80A, and 125A.
- Variants include switch-disconnectors with padlockable handles, door mounting, base mounting, and DIN rail mounting.
- Models are identified by specific codes (e.g., ZBK20EHN4A4, ZBK40VZVH4A3, ZBK25SMAHN1A4) indicating configuration and rating.
Technical Specifications
| Parameter | Values (by Rating) |
|---|---|
| Rated Thermal Current (Ith) | 20A to 125A depending on model |
| Rated Insulation Voltage (Ui) | 690V (up to 1000V for 125A) |
| Rated Impulse Withstand Voltage (Uimp) | 6kV (8kV for 125A) |
| AC Rated Operational Current (Ie AC21A) | 20A to 125A |
| Making Capacity (Ieff) at 3x380-440V | 160A to 850A |
| Breaking Capacity at 3x220-240V and 3x380-440V | 160A to 680A |
| Direct Motor Switching (AC3) at 3x400V | 12A to 72A |
| Motor Power Ratings (kW) at various voltages | Ranges from 3kW to 37kW depending on current rating and voltage |
| Main & Safety Switch Ratings (AC23) | 16A to 85A at 3x400V |
| Rated Conditional Short-Circuit Current | 10kA for all ratings |
| Max Fuse Size (gL/gG) | 25A to 125A |
| Rated Short-Time Withstand Current (1 sec.) | 250A to 1500A |
| Mechanical Life | 100,000 to 200,000 operations depending on rating |
| Connecting Capacity | Solid/Stranded cables from 0.5 mm² to 50 mm² depending on model |
| Terminal Screw Size and Tightening Torque | M3.5 to M6 screws; torque ranges from 0.8 Nm to 4.5 Nm |
Standards and Certifications
- Compliant with VDE 0660, IEC 60947-3, IEC 60947-5-1.
- UL and cUL certification under FILE NO. E123623.
Accessories and Options
- Auxiliary contacts available in 1NO+1NC and overlapping configurations (codes ZBKLH11, ZBKLH11X).
- PE and N terminals with fixed or terminal options (codes ZBKPE80E, ZBKPEN80E, ZBKN40E, ZBKN80E).
- Door drilling templates for external handle mounting.
- Terminal shrouds and shaft extensions available on request.
- Customized shaft dimensions up to 400mm length.
Mechanical and Installation Details
- Switches feature padlockable handles with IP66 or IP40 protection depending on mounting type.
- Dimensions vary by model and pole count, with detailed measurements provided for mounting and shaft lengths.
- Switch base mounting uses a 22mm diameter hole.
Application and Usage Recommendations
- Suitable for manual motor control and general use switching applications.
- Fuse sizes and motor ratings are specified for direct-on-line (DOL) motor starting at various voltages.
- Recommended tightening torques ensure secure electrical connections.
- Mechanical life ratings guide maintenance and replacement intervals.
Summary
The ZBK series switch-disconnectors offer a comprehensive range of electrical switching solutions with robust technical specifications, multiple configurations, and accessory options. They are designed to meet international standards and provide reliable performance for industrial and commercial electrical installations.
Catalog excerpts
main contact NC aux contact NO aux contact main contact NC aux contact NO aux contact Auxiliary contacts Switch door mounting with padlockable handle IP66 Auxiliary contacts technical information Rated insulation voltage Main & safety switch Size of terminal screw Tightening torque Fuse size (RK5) 5kA / 600V Tightening torque Flexible cable (+ multicore cable end) Door drilling for external handle 9 E Max. short circuit protection Flexible cable Rated conditional short-circuit current Max. fuse size gL(gG) Rated short-time withstand current Icw (1sec.) Mechanical life Connecting capacity Solid or stranded cable Rated voltage Ampere-Rating “General use” DOL-Rating 3-phase Direct switching motors Solid or stranded cable Ith Ithe Ui Uimp Ie Ieff Rated conditional short-circuit current According to VDE 0660, IEC 60947-3, IEC 60947-5-1 Rated thermal current Rated thermal current enclosed Rated insulation voltage Rated impulse withstand voltage AC rated operational current Making capacity Breaking capacity Switching capacity Technical information Connecting capacity Rated thermal current >> Other options also available on request: - Products external mounting fixing ø 22 - Terminal shrou
Open the catalog to page 1
Auxiliary contacts Switch base mounting ø 22 door clutch padlockable handle IP66 main contact NC aux contact NO aux contact main contact NC aux contact NO aux contact Ith Ithe Ui Uimp Ie Ieff Direct switching motors Main & safety switch Rated conditional short-circuit current Max. fuse size gL(gG) Rated short-time withstand current Icw (1sec.) Mechanical life Connecting capacity Solid or stranded cable Size of terminal screw Tightening torque According to UL & cUL FILE NO. E123623 Rated voltage Ampere-Rating “General use” DOL-Rating 3-phase Manual Motor Controller Motor Disconnect Max. short...
Open the catalog to page 2
Switch base mounting ø 22 door clutch padlockable handle IP66 main contact NC aux contact NO aux contact main contact NC aux contact NO aux contact Shaft extensions Auxiliary contacts Auxiliary contacts technical information Technical information Rated insulation voltage Main & safety switch Flexible cable Size of terminal screw Tightening torque According to UL & cUL FILE NO. E123623 Rated voltage Ampere-Rating “General use” DOL-Rating 3-phase Manual Motor Controller Motor Disconnect Fuse size (RK5) 5kA / 600V Tightening torque Max. short circuit protection Flexible cable (+ multicore cable...
Open the catalog to page 3
main contact NC aux contact NO aux contact Auxiliary contacts technical information Rated insulation voltage Fuse size (RK5) 5kA / 600V Tightening torque Size of terminal screw Tightening torque Manual Motor Controller Motor Disconnect Flexible cable (+ multicore cable end) Flexible cable Rated voltage Ampere-Rating “General use” DOL-Rating 3-phase Rated conditional short-circuit current Max. fuse size gL(gG) Rated short-time withstand current Icw (1sec.) Mechanical life Connecting capacity Solid or stranded cable Main & safety switch Max. short circuit protection Direct switching motors Solid...
Open the catalog to page 4All Telergon catalogs and technical brochures
ATS8 Pages
S5M DC3 Pages
S6R DC2 Pages
S6N DC2 Pages
S6 DC4 Pages
S5 DC5 Pages
CIF222 Pages
M21 M21 series3 Pages
series CTR7 Pages
CCF CCP3 Pages
S5F6 Pages
CEC series2 Pages
CIS25 - A - C - D - F6 Pages
S6N AC2 Pages
S5M AC4 Pages
S6 AC2 Pages
S5 AC9 Pages
CITA4 Pages
CITP CTFR3 Pages
TP T TB TF8 Pages
Enclosed solutions3 Pages
Cam switches17 Pages
Enclosed cam switches18 Pages
- Single-pole switch
- Isolator switch
- Multipole switch
- Multipole disconnect switch
- Metal switch
- Plastic switch
- 3-pole switch disconnector
- Bipolar switch
- IP65 switch
- Transfer switch
- AC electric switch
- 4-pole switch disconnector
- Low-voltage main switch
- AC disconnector
- IEC switch
- Door switch
- Automatic transfer switch
- IEC disconnector
- Rotary main switch
- Automatic disconnector