BETA Devices
to UL Standard
BETA devices approved
to UL standards
• Miniature circuit
breakers for branch
circuit protection to
UL 489
• Miniature circuit
breakers for
supplementary
protection to UL 1077
• SITOR fuse links to
UL 248-13
• Cylindrical fuse holders
to UL 512
• Class CC fuse links to
UL 248-4
BETA – UL Standard
A comprehensive range
• Class CC fuse holders to
UL 512
For detailed information, please refer to the table on page 2.
• Insta contactors to
UL 508
• Switch disconnectors to
UL 508
• Time switches to UL 917
• Time and pulse counters
to UL 863
• Socket outlets for
distribution board
mounting to UL 498
Links:
http://www.ul.com for general UL information
http://www.ul.com/database for UL-listed devices
http://www.ul-europe.com for UL information in Europe
http://www.siemens.com/beta for information on BETA products
BETA Low-Voltage
Circuit Protection
w w w. s i e m e n s . c o m / b e t a - n e w s
Electrical installation from A to Z
UL standards are used in North America, but also in several other
countries. This is of particular importance to European exporters of
electrical switchgear equipment for machines who export to the
USA, as their products will only be accepted if they meet the relevant
UL standards. UL 508A describes the design of switchgear cabinets
and implementation of integral components with reference to other
pertinent UL standards where applicable. It therefore represents the
basic standard for all electrical systems used in North America.
Countless BETA devices comply with UL standards and are therefore
suitable for implementation worldwide in both IEC/EN and UL
applications within the framework of their specified use.
• LV HRC fuse bases to
UL 512
BETA Low-Voltage Circuit Protection
UL standard
Overview
The following table contains a summary of all available
products/product groups with details of the pertinent
applicable UL standards.
Using the link: http://www.ul.com/database
you can enter the E-No. under "UL File Number"
(e.g. E116386) to view the relevant certificate.
Approvals
Product designation
Type, MLFB
Miniature circuit breakers
5SY4, 5SY6, 5SY7, 5SY8
UL1)
UL 489
UR2)
CSA
UL File No.
UL 1077
CSA C22.2 No. 235
E116386
Miniature circuit breakers
5SJ4 . . .-.HG4.
UL 1077
CSA C22.2 No. 5-02
E243414
Miniature circuit breakers
5SP4
UL 1077
CSA C22.2 No. 235
E116386
Miniature circuit breakers
5SX2
UL 1077
CSA C22.2 No. 235
E116386
Auxiliary switches for miniature circuit breakers
5ST3 0 and 5SX9
UL 1077
CSA C22.2 No. 235
E116386
Digital time switches
7LF4 4
UL 60730/UL 917 CSA C22.2 No. 14 and 177
E301698
Analog time switches
7LF5 3
UL 60730/UL 917 CSA C22.2 No. 14 and 177
E301698
Time and pulse counters
7KT5 8
UL 863
CSA C22.2 No. 6 and 55
E300537
UL socket outlets
5TE6 804
UL 498
CSA C22.2 No. 182.3M
E258598
Switch disconnectors
5TE1
UL 508
E302554
Insta contactors
5TT5 7
UL 508
E303328
SITOR fuse links
3NC3 2
UL 248-13
CSA C22.2 No. 248.13-00
E167357
SITOR fuse links
3NC3 3
UL 248-13
CSA C22.2 No. 248.13-00
E167357
SITOR fuse links
3NC1 0
UL 248-13
CSA C22.2 No. 248.13-00
E167357
SITOR fuse links
3NC1 4
UL 248-13
CSA C22.2 No. 248.13-00
E167357
SITOR fuse links
3NC2 2
UL 248-13
CSA C22.2 No. 248.13-00
E167357
SITOR fuse links
3NC3 2. .-6B
UL 248-13
CSA C22.2 No. 248.13-00
E167357
SITOR fuse links
3NC2 3. .-6B
3NC3 3. .-6B
UL 248-13
CSA C22.2 No. 248.13-00
E167357
E167357
SITOR fuse links
3NE1 . . .-0
UL 248-13
CSA C22.2 No. 248.13-00
SITOR fuse links
3NE1 . . .-1
UL 248-13
CSA C22.2 No. 248.13-00
E167357
SITOR fuse links
3NE1 . . .-2
UL 248-13
CSA C22.2 No. 248.13-00
E167357
SITOR fuse links
3NE3 2. .
UL 248-13
CSA C22.2 No. 248.13-00
E167357
SITOR fuse links
3NE3 3. .
UL 248-13
CSA C22.2 No. 248.13-00
E167357
SITOR fuse links
3NE4 1. .
UL 248-13
CSA C22.2 No. 248.13-00
E167357
SITOR fuse links
3NE8 0. .-1
UL 248-13
CSA C22.2 No. 248.13-00
E167357
CSA C22.2 No. 248.13-00
SITOR fuse links
3NE8 7. .-1
UL 248-13
Cylindrical fuse holders for SITOR fuses
3NC1 038
UL 512
Cylindrical fuse holders for SITOR fuses
3NC1 0
UL 512
E220063
Cylindrical fuse holders for SITOR fuses
3NC1 4
UL 512
E220063
Cylindrical fuse holders for SITOR fuses
3NC2 2
Class CC fuse links
3NW1 . . .-0HG
E167357
E220063
UL 512
E220063
UL 248-4
E258218
Class CC fuse links
3NW2 . . .-0HG
UL 248-4
E258218
Class CC fuse links
3NW3 . . .-0HG
UL 248-4
E258218
Class CC fuse holders
3NW7 5.3-0HG
UL 512
CSA C 22.2 No. 39-M
E171267
LV HRC fuse bases
3NH3 030
UL 512
CSA C 22.2 No. 39-M
E171267
LV HRC fuse bases
3NH3 120
UL 512
CSA C 22.2 No. 39-M
E171267
LV HRC fuse bases
3NH3 230
UL 512
CSA C 22.2 No. 39-M
E171267
LV HRC fuse bases
3NH3 330
UL 512
CSA C 22.2 No. 39-M
E171267
LV HRC fuse bases
3NH3 430
UL 512
CSA C 22.2 No. 39-M
E171267
LV HRC fuse bases
3NH4 030
UL 512
CSA C 22.2 No. 39-M
E171267
LV HRC fuse bases
3NH4 230
UL 512
CSA C 22.2 No. 39-M
E171267
1)
UL Listed
2)
UL Recognized
2
Siemens E86060-K8220-E320-A1-7600 02 · 2007
BETA Low-Voltage Circuit Protection
UL standard
Overview of IEC – UL standards
The EN/IEC or UL standards are used worldwide as follows:
Fuse protection systems
Circuit protection systems
IEC e.g.: EN, VDE, BS, NF
VDE
UL/CSA
NF
BS
UL/CSA
other
Information on UL 508A
Low-voltage systems in the USA
The UL 508A "Standard for Industrial Control Panels" is an
authorative description for the use of electrical devices and
components in control cabinets and is also used by UL for the
approval of switchgear.
While a variety of different systems are used in the USA,
3-phase systems with 240 V and 480 V and 3 and 4-wire
systems are the most common, with 208 V and 600 V playing
a considerably smaller role.
Residential buildings are primarily fitted with 120 to 240 V
single-phase systems. A frequency of 60 Hz is standard in
North America.
Industry and commercial
Residential
3 phases, 4 wires
3 phases, 3 wires
1 phase, 3 wires
3-phase wye, 4 wires
3-phase delta, 3 wires, grounded corner
Single-phase, 120 V/240 V, grounded midpoint
Caution:
The PE must not be used for electricity. There is no
PEN conductor => N = "Grounded conductor" (white
or gray), separate wires must be used for PE and N.
480 V Y/277 V1)
240 V
240 V, outer conductor
600 V Y/347 V1)
480 V
120 voltage against ground
240 V Y/131 V1)
600 V
208 V Y/120 V1)
1)
Y describes the "Solidly grounded circuit". The "Y" value specifies the voltage between the phases (e.g. 480 V), the value after the slash specifies the voltage
between the phase and the grounding (e.g. 277 V at 480 V voltage between the phases).
Siemens E86060-K8220-E320-A1-7600 02 · 2007
3
BETA Low-Voltage Circuit Protection
UL standard
Explanation of UL symbols
All symbols and descriptions of UL symbols can be found on
the Internet:
http://www.ul.com/mark/art.htm
General information about UL can be found at:
http://www.ul.com
Symbol
Application
UL symbol
This is the most used UL symbol. If a product has this
mark, it means that the device samples tested by UL
have met the UL safety requirements. These
requirements are largely based on the UL standards
published by UL. This mark can be found on all types
of devices, such as household appliances, computers,
fuses, electrical control cabinets, fire extinguishers,
life belts and thousands of other devices.
c-UL symbol
This mark applies to the Canadian market. Products
bearing this mark have been tested by UL in
accordance with the Canadian safety requirements,
which vary slightly from the US regulations in some
points.
c-UL us symbol
This symbol was introduced at the beginning of 1998.
It means that the device bearing this mark complies
with both UL and Canadian regulations.
UR, c-UR and c-UR us symbol
Recognized Component Mark and Canadian
Recognized Component Mark
These symbols are seldom seen by consumers as they
are affixed to special components that are part of a
larger system or product. These components may
have technical or design restrictions.
The Component Recognition symbol can be on a large
number of products, such as switches, power
supplies, printed boards, switching devices and many
other products. Products for Canada have an
additional "c".
The c-UR us symbol was introduced in 1998 and
means that the marked components meet both the
UL and CSA regulations.
The "UL listed" symbol u is applied to devices that can be
installed universally and without further instructions without
any restriction of their respective applicability, e.g. contactors
to UL 508, miniature circuit breakers to UL 489, ...
The "UL Recognized" symbol U is intended for devices that
may only be installed by experts as components,
e.g. miniature circuit breakers to UL 1077, time switches to
UL 917, SITOR fuses, ...
4
Siemens E86060-K8220-E320-A1-7600 02 · 2007
BETA Low-Voltage Circuit Protection
UL standard
Terms for individual elements modules of a switchgear to UL 508A
1
2
I2_13564
3
Class 1
Control
Circuit
14
16
Class 1
Control
Circuit
4
5
15
17
13
10
6
12
9
11
7
Power Circuit
8
Class 2
Control
Circuit
1
Circuit breakers or miniature circuit
breakers to UL 489, or switch
disconnectors with fuses
2
Motor feeder
3
Feeder protection
4
Starter
5
Internal wiring
6
External wiring
7
Load
8
Class 2 electric circuit
9
Solenoids and other control devices
10 Control circuit, Class 1, direct
11 Terminals
12 Overload relay
13 Contactor
14 Heavy current transformer
15 Control devices and circuits, Class 1
Power Circuit
16 Control transformer, grounding
17 Miniature circuit breakers to UL 1077
as "supplementary protectors"
In the illustrated example, the motor circuit is the "power
circuit" and must be protected with a protective device to
UL 489. The motor control circuit is the control circuit, which
is branched from the load side of the branch protective device
and serves to control the connected motor switching devices.
The branch itself is not regarded as a "branch circuit" and can
be protected with either a UL Listed branch protective device,
such as a miniature circuit breaker to UL 489 or with a
supplementary protective device miniature circuit breaker to
UL 1077.
"Branch circuit protection" is the term for a protective device
that protects a branch against overcurrents and short-circuits.
"Supplementary protection" is the term for protective devices
that are additionally installed downstream of branch
protection.
"Class 2 control circuits" are devices that have been tested by
UL and approved for extra-low voltages. "Class 1 common
control circuits" means that no control transformers are used;
the voltage corresponds to that of the motor or the load.
"Field wiring" means that the wiring can be installed "in the
field" by an electrician without the need for any specially
prepared cables.
"Factory wiring", by contrast, means that the devices can only
be factory-connected, e.g. when soldered or crimped
connections are required.
Siemens E86060-K8220-E320-A1-7600 02 · 2007
5
BETA Low-Voltage Circuit Protection
UL standard
Product descriptions
Class CC fuse links and Class CC fuse holders
5SY4, 5SY6, 5SY7, 5SY8, 5SX, 5SP4 miniature circuit breakers
to UL 1077
Key features of these fuses for industrial applications are their
high switching capacity, high current limitation and ultracompact design.
Miniature circuit breakers serve to protect cables and lines
against overload and short-circuit.
Different tripping characteristics are available for the
applications described here. The standards EN 60898,
DIN VDE 0641-11 and IEC 60898 form the basis for the design
and approval of miniature circuit breakers. The devices are
also approved to UL 1077 for Supplementary Protection.
When used for industrial applications and for system and
plant engineering applications, the miniature circuit breakers
can be supplemented by individually mountable additional
components, such as auxiliary switches, fault signal contacts,
and accessories, such as busbar systems and mounting parts.
5SJ4 . . .-.HG. . miniature circuit breakers to UL 489
Within the sphere of influence of the ANSI (American National
Standards Institute), miniature circuit breakers can be used as
an all-round solution for protection tasks in distribution
boards, control cabinets and control systems to UL 508A as
"branch protectors". In particular, they are also approved for
the protection of electrical circuits in heating, ventilating and
cooling systems (HVAC).
The terminal are suitable for "field wiring". This means that
the devices can be installed not only in factory-finished
distribution boards and control cabinets, but also on-site in a
customer system.
The rated voltage is 240 V AC and 60 or 125 V DC, whereby
the 5SJ4 . . .-.HG40 series is designed for 240/120 V AC
systems, 1-phase with "same polarity" connection (same
potential at the input terminals) and the 5SJ4 . . .-.HG41
series is also designed for 240 V AC systems, 3-phase with
"opposite polarity" connection (different potential at the input
terminals).
This covers a wide range of protection tasks, both in
residential and non-residual buildings, as well as in industry in
electrical circuits to NEC (National Electric Code).
The tripping characteristics B, C and D to EN/IEC 60898 have
been adapted so that they fall in the permissible tripping
range to UL 489, as well as for applications at 25 °C and 40 °C.
This means that the devices are approved for use according to
both standards. The enclosure dimensions of the devices
correspond to DIN format.
This means that both device series are suitable for universal
use worldwide to IEC or UL standards.
6
Siemens E86060-K8220-E320-A1-7600 02 · 2007
In order to prevent confusion with the American Midget fuses
or European fuses, size 10 x 38 mm, the Class CC fuses are
distinguished by a "rejection tip" on the contact cap. This
prevents the use of Midget fuses (with lower switching
capacity) in Class CC fuse holders. Class CC fuses are used for
"branch circuit protection".
The encapsulated fuse holders are tested and designed to the
US National Electrical Code NEC 210.20(A) so that in
continuous operation only 80 % of the rated current is
permitted as operational current. An operational current of
100 % of the rated current (30 A) is only permitted short-time.
The devices are prepared for the inscription labels of the
8WH8 120-7AA15 and 8WH8 120-7XA05 ALPHA FIX terminal
blocks.
There are three different series:
• Slow characteristic for the protection of control
transformers, reactors, inductances, considerably slower
characteristic than the minimum requirements made in the
UL standards on Class CC fuses of 12 s at 2 x In.
• Quick characteristic for a wide range of applications, for the
protection of lighting systems, heating, control systems.
• Slow, current-limiting characteristic in the event of
overload and quick in the event of short-circuit and high
current limitation for the protection of motor circuits.
BETA Low-Voltage Circuit Protection
UL standard
SITOR fuse links
5TE1 . switch disconnectors to UL 508
SITOR fuse links protect converter equipment and the power
semiconductors used in these devices (diodes, thyristors,
GTOs, etc.) against short-circuits.
The 5TE1 switch disconnectors are available from 100 A to
200 A in 3- and 4-pole versions and can be used as main
switches, repair switches, outgoing feeder switches, as well as
emergency system interrupters. The series corresponds to the
requirements of IEC 947-3 and its key features are its compact
and robust design, high short-circuit strength, high DC
switching capacity and comprehensive accessories. Its small
footprint means it is easy to install in all types of enclosures,
distribution boards and control cabinets. The devices are
KEMA certified and approved to UL 508.
There are three operational classes; aR, gR and gS, with the
following special features with regard to overload protection.
When using SITOR fuse links of operational class aR, the
overload protection of converter equipment, up to
approx. 3.5 times the rated current of the fuse link is taken
from conventional protective devices (e.g. thermal-delayed
overload relays) or, in the case of controlled power
converters, from the current limiter, as the tripping
characteristics of the fuse do not cover this current range.
SITOR fuse links of operational class gR protect according to
their characteristics, even against overload.
As semiconductor protection, SITOR fuse links of operational
class gS are also suitable for the overload and short-circuit
protection of cables, lines and busbars.
Fuses allied with LV HRC fuses (with contact pins to
IEC 60269-2 and slotted contact pins with gauge 110 mm to
IEC 60269-4) can be used in 3NH LV HRC fuse bases or in 3KL
and 3KM switch disconnectors with fuses and 3NP fuse switch
disconnectors.
Due to the higher power dissipation of SITOR fuses compared
to standard LV HRC fuses for line protection, it is sometimes
necessary to reduce the rated current of the fuse. Always
ensure compliance with the configuration and derating
information.
SITOR cylindrical fuses (3NC1 0, 3NC1 4, 3NC2 2 cylindrical
fuses) are suitable for a wide range of industrial applications
for semiconductor protection and offer users an extremely
compact and flexible solution. They cover the power range up
to 100 A. This design is used all over the world and
internationally standardized (IEC 60269-3-1).
These SITOR fuse links also have a considerably higher power
dissipation as standard fuse links of operational class gG for
line protection. For this reason, 3NC1 09, 3NC1 49, 3NC2 29
SITOR fuse holders have been specially developed for high
heat tolerance and maximum heat dissipation. These SITOR
fuse holders can also be used as switch disconnectors
according to the utilization category to IEC 60947.
According to UL 508, the products are approved as "manual
motor controllers", assigned to the category "industrial
control equipment" and may be used as switches downstream
of branch protection. These systems are designed for use in
conventional locations as specified in the "National Electrical
Code, NFPA 70" or "Industrial Control Panels Standard,
UL 508A".
5TT5 7 Insta contactors to UL 508
Insta contactors are standard devices in installation
technology and belong to the BETA switching device range.
Insta contactors are particularly suitable for switching
heating, lighting and motors. Insta contactors are increasingly
used in industry for motors where distribution technology
plays a major role, e.g. in auxiliary installations for heat
pumps and air conditioning technology. In addition to their
basic function, they can also be used to switch single-phase
and three-phase electrical motors on and off.
5TT5 7 Insta contactors are approved to UL 508 as "magnetic
motor controllers" and are assigned to the category "industrial
control equipment". This includes industrial control devices
and accessories for starting, braking, controlling or protecting
electrical motors, etc. also industrial control devices or
systems that store or process information.
5TE6 804 socket outlets for distribution board mounting to
UL 498
The socket outlets for mounting in distribution boards to
DIN 43880 and on standard mounting rails to DIN 50022 have
since become standard in modern switchgear/distribution
boards. They are used for tasks such as the connection of
plug-in communication devices in communication
distribution boards, in switchgear for maintenance purposes
or in private plants for the occasional use of devices with
heavy starting and separate fusing
To make installation easier, the touch-protected terminals L, N
and PE are located on the side of the socket outlet.
The 5TE6 804 socket outlet is approved to UL 498 as a
"receptacle for plugs and attachment plugs - component".
Siemens E86060-K8220-E320-A1-7600 02 · 2007
7
BETA Low-Voltage Circuit Protection
UL standard
7KT58 time and pulse counters to UL 863
Time and pulse counters are used for the reliable monitoring
of production and service times, which enables the exact
planning and monitoring of production sequences,
maintenance cycles and warranty times. As well as the proven
electromechanical time and pulse counters for mounting in
distribution boards, we also supply digital time and pulse
counters. The fields of application for both counter types are
very diverse, such as the recording of operating hours of
machines, systems or building management systems, as well
as pulse counting for general volume flow counting,
registration of starting frequencies, starting cycles or
production quantities in systems and machines. As well as a
modern design, the electronic counter has a 7-digit LCD,
which can be reset electrically or manually. What is
particularly interesting is that a single device can cover a
universal voltage of 12 ... 150 V DC and 24 ... 240 V AC. Both
counter versions - with drum-type counter mechanism or LCD
- comply with VDE 0435-301 or EN 60255-6 and are approved
according to UL 863 and CSA C22.2 No.6.
Time and pulse counters are assigned to "time-indicating and
-recording appliances" according to UL 863. The UL 863
includes electrically operating timers that are designed
primarily for industrial installations.
7LF4 4 digital time switches and 7LF5 3 analog time switches
according to UL 917
These days, energy saving through time switching has
become a matter of course. In fact, it is now hard to imagine
many process sequences without time switching. The new
generation of digital time switches have a much more diverse
range of functions than earlier devices and, thanks to better
solutions, are simpler to operate. They can be used for
switching systems or system components, or for functions,
such as:
• Irrigation systems
• Greenhouses
• Public gardens
• Swimming pools
• Filtering installations
• Canopy controls
• School bells
• Church bells
• Shop window lighting
• Advertising lighting
• Gym lighting
• Street lighting
• Street lighting
• Office lighting
• Lighting of stairwells and entrances
• Preheating of industrial furnaces and spraying machines
• Heating and air-conditioning systems
• Fans and ventilation systems
• Heating and circulation pumps or
• Sauna systems.
All devices have the VDE mark and approval to UL 917 and
CSA-C22.2 No. 14. Devices with voltage variations from
120 V AC are also available especially for use according to UL.
The requirements specified in the UL 917 "Standard for safety
for clock-operated switches" cover time-controlled clocks with
a rated voltage of 600 V, which are designed for switching
loads at specific intervals and are intended for use in
accordance with National Electrical Code, ANSI/NFPA 70.
Siemens AG
Automation and Drives
Electrical Installation Technology
Postfach 10 09 53
93009 REGENSBURG
GERMANY
Subject to change without notice 02/07
The information provided in this brochure only contains
general descriptions or characteristics of performance,
which may vary depending on the application or may
change due to the further development of the product. An
obligation to provide the respective characteristics shall
only exist if expressly agreed in the terms of contract.
All product designations may be registered trade-marks or
product names of Siemens AG or other supplying
companies. Third parties using these trademarks or
product names for their own purposes might infringe upon
the rights of the trademark owners.
Order No. E86060-K8220-E320-A1-7600
DISPO 18301 | PI 0207 En/ 703097 | © Siemens AG 2007