Low voltage INSTAL-BLOK type switchgears

Introduction

The INSTAL-BLOK indoor cabinet system manufactured by ZPUE S.A. is a state of the art, modular solution based on a framework design with maintenance-free bolt fasteners, which enable simple and flexible installation of low voltage controlgear, switchgear and protection devices and other accessories in order to meet power engineering, industrial automation and other industry needs.

Characteristics

Characteristics

Enclosure made of 1.5 mm thick steel sheet. IK10 mechanical impact resistance,
removable side and back walls, and the possibility of using an enclosure with front panels without a door,
possibility of combining cabinets in sets,
protection rating from IP20 to IP66 with the use of appropriate seals,
possibility of manufacturing of cabinets from stainless steel (solutions for the food industry),
three-point locking system, which assures good fit of the door to the cabinet and adequate tightness. The lock can be equipped with a door lock cylinder or padlock attachment.

Busbar system

INSTAL-BLOK is designed for the installation of busbars from 250 to 1600 A (other currents after agreement with the manufacturer).

Switchgear purpose

INSTAL-BLOK is designed for the use as:

industrial switchgears for demanding conditions of operation (pollution, high IP rating),
switchgear for office buildings, public facilities and others, due to the possibility of front panel installation,
auxiliary switchgear for alternating and direct current,
control cabinets with installed inverters, soft-starters, etc.

Switchgear design

framework
doors
side wall
back wall
roof
front panels
pedestal

Width [mm]:
Value	Designation
400	04
500	05
600	06
700	07
800	08
900	09
1000	10
1100	11
1200	12

Cabinet type is marked with a code for cabinet dimensions:

Height [mm]:
Value	Designation
1000	10
1200	12
1400	14
1600	16
1800	18
2000	20

Depth [mm]:
Value	Designation
400	04
600	06
800	08
1000	10

Note:
At the customer's request it is possible manufacture a cabinet with other dimensions.

Basic technical data

Compliance with standards:
The INSTAL-BLOK type switchgear meets the requirements of the following standards:

PN-EN 61439-1 - „Low-voltage switchgear and controlgear assemblies. General rules”,
PN-EN 60529 - „Degrees of protection provided by enclosures (IP Code)”,
PN-EN 62262 - „Degrees of protection provided by enclosures for electrical equipment against external mechanical impacts (IK code)”.

Electrical data:
Rated insulation voltage	690 V / 1000 V AC¹⁾ up to 1500 V DC
Rated connection voltage	400 V / 500 V / 690 V AC²⁾ up to 1200 V DC
Test impulse withstand voltage	8 kV
Rated frequency	50 Hz
Rated current of the switchgear	from 250 up to 1600 A³⁾
Rated short-time withstand current	up to 30 kA (1s)
Rated peak withstand current	up to 63 kA

¹⁾ Up to 1500 V AC in custom design.
²⁾ Up to 1000 V AC in custom design.
³⁾ Other design technology to be agreed with the manufacturer.

Mechanical data:
Dimensions	Width - from 400 to 1200 mm Height - from 1000 to 2000 mm Depth - from 400 to 1000 mm
IP protection rating	from IP20 to IP66
IK protection rating	up to IK 10
Surface protection	Framework: 1.5 mm Aluzinc or painted steel sheet in special design from stainless steel Covers: 1.5 mm Aluzinc or painted steel sheet in special design from stainless steel - Front panels: plastic
Powder painting	standard - RAL 7035 other colours on request
Plastic components	Halogen-free, self-extinguishing, fire-resistant, CFC-free

Service conditions:
Ambient temperature - Lower limit of ambient temperature - Upper limit of ambient temperature - Average daily temperatures over 24 hours	Ambient temperature -5°C (- 25°C)⁴⁾ +40°C -5°C up to +35°C
Relative humidity	up to 50% (at a temp. 40°C)
Installation altitude	up to 1000 m a.s.l.
Atmosphere at the installation place	free from chemically aggressive and conducting dust, fumes and gases

⁴⁾ Depending on the devices used.

At the customer's request it is possible to design a switchgear adapted to other conditions.

devices that may be installed in the Instal-Blok switchgear bays

Due to the very wide range of possible applications of the INSTAL-BLOK switchgear, the catalogue presents only the most frequently used solution.

Bays with coupler or power circuit breaker, from 630 to 1600 A

Area of application	Incoming bay Outgoing bay Bus coupler bay
Ingress protection rating	IP20 without doors Up to IP66 with doors
Bay dimensions	Height: from 1800 to 2000 mm Width: from 500 to 1000 mm Depth: from 400 to 800 mm (depending on the device type)
Possibility of installing devices	- stationary or withdrawable power circuit breaker from 630 to 1600 A - stationary or withdrawable compact circuit breaker, with manual or motor drive from 630 to 1600 A - box fuse switch disconnector from 630 to 1600 A - snap action disconnector from 630 to 1600 A
Additional devices	- place for installation of metering panel - drive control automation - surge arrester etc.
Connection	From the top: bus duct / busbar / cable From the bottom: bus duct / busbar / cable
Other	The possibility of installation of small modular devices

Incoming/outgoing bays

Area of application	Power- supply receiving bay
Ingress protection rating	Ip20 without doors Up to IP66 with doors
Bay dimensions	Height: from 1800 to 2000 mm Width: from 500 to 1000 mm Depth: from 400 to 800 mm (depending on the device type)
Possibility of installing devices	Incoming feeders: - stationary or withdrawable compact circuit breaker, with manual or motor drive from 630 to 1600 A - box fuse switch disconnector from 630 to 1600 A - snap action disconnector from 630 to 1600 A Outgoing feeders: - fuse switch disconnectors up to 630 A - compact circuit breakers up to 630 A - modular devices
Additional devices	The possibility of installing of terminal strips in various configurations
Connection	From the top: busbar / cable From the bottom: busbar / cable

Cable duct bays

Area of application	Outgoing bay with cable duct
Ingress protection rating	Ip20 without doors Up to IP66 with doors
Bay dimensions	Height: from 1800 to 2000 mm Width: from 800 to 1200 mm Depth: from 400 to 800 mm (depending on the device type)
Possibility of installing devices	- compact circuit breakers up to 630 A - box fuse switch disconnectors up to 630 A - modular devices - motor blocks (protection, contactor, relay) up to 250 A - reversing motor blocks - star delta motor blocks - frequency converters
Additional devices	Instrumentation & Control devices
Connection	From the top: cable From the bottom: cable

Swing frame bays

Area of application	Bays for the installation of meters or control instrumentation
Ingress protection rating	Ip20 without doors Up to IP66 with doors
Bay dimensions	Height: from 1800 do 2000 mm Width: from 600 do 1000 mm Depth: from 400 do 800 mm (depending on the device type)
Possibility of installing devices	Devices installed on a mounting plate: - fuse switch disconnectors up to 160 A - compact circuit breakers up to 160 A - metering and ordinary terminal strips - programmable controllers Devices installed on a swing frame: - full-size and TH35 rail mounted electricity meters - network analysers - ammeters - voltmeters - other instrumentation and control equipment
Additional devices	The possibility of installing terminal strips in various configurations
Connection	From the top: cable From the bottom: cable
Others	A cable duct can be attached to the bay

Free installation bays

Area of application	Bays for the installation of large-sized equipment structures
Ingress protection rating	IP20 without doors Up to IP66 with doors
Bay dimensions	Height: from 1800 to 2000 mm Width: from 400 to 1000 mm Depth: from 400 to 800 mm (depending on the device type)
Possibility of installing devices	- frequency converters - soft-starts - high-mass transformers - direct current batteries - 19” (rack) devices, after installation of guide bars
Connection	From the top: cable From the bottom: cable
Others	A cable duct can be attached to the bay An air conditioning system may be provided for the bay

Capacitor bank bays

Area of application	A bank for compensation of capacitive reactive power: - capacitor - capacitor and reactor
Ingress protection rating	From IP20 to IP54
Bay dimensions	Height: 2000 mm Width: from 500 to 800 mm Depth: from 400 to 600 mm
Possibility of installing devices	- 3 to 6 capacitor stages with a power of 60 to 200 kvar or capacitor and reactor stages from 60 to 100 kvar - 4 to 12 capacitor stages with a power of 120 to 260 kvar or up to 8 capacitor and reactor stages with a power up to 160 kvar
Connection	From the top: cable From the bottom: cable
Others	Bays with reactors are equipped with fans depending on the power of installed reactors

Note:
- provided dimensions apply only to a protection rating up to IP31
- higher protection ratings require larger enclosure sizes
- more information on capacitor banks can be found in chapter BK, BKD — Capacitor banks

Placement of the switchgear and installation of connections

The INSTAL-BLOK switchgears are designed for indoors installation. They can be placed directly on concrete flooring of the facility. Regardless of the type of foundation, switchgears must be placed exactly horizontally (maximum deviation may not exceed 2 mm over 1 m of base length). The switchgear (single cell) should be fixed to the foundation with 4 M8 bolts in locations shown on Fig. 1. When placing the switchgear appropriate spacing should be maintained between the switchgear and other elements in the room in accordance with the regulations in force.

External connections are made as: