Catalog excerpts
Safety Rope Pull Switches SR, SRM and SRO
Open the catalog to page 1Safety Rope Pull Switches – For more safety on the production line When it comes to maximum safety on the assembly line, in the production line or directly at the machine, Bernstein AG‘s Safety Rope Pull Switches are a reliable and proven solution. The switches can be deployed flexibly, are easy to install and convenient to handle. And most importantly: they offer maximum safety when it is needed. According to the Machinery Directive, machines must be equipped with at least one emergency stop which can stop a dangerous process at any time in order to prevent injury to people, but also...
Open the catalog to page 2PRODUCT CHARACTERISTICS • Easy to install with Quick-Fix quick-release device • Flexible application due to different lengths • Optional integrated emergency stop impact button • A cover over the mechanical parts ensures the switches are tamper-proof • Connection area and mechanical components are separate for additional safety SRM ➞ metal enclosure or plastic enclosure
Open the catalog to page 3Small and compact – SRO BERNSTEIN has now added a particularly small and compact version to the product family of safety rope pull switches. Thanks to its modular design, the new SRO (Safety Rope Pull) is extremely space-saving as well as highly versatile. This modular principle has the advantage of always being able to offer exactly the right product for a specific customer application. Product characteristics • As a metal or thermoplastic variant – or as a combination of both • Compact design for confined spaces • Emergency stop button upon request • Max. rope length of 30 m • Up to 4...
Open the catalog to page 4Switching status indicator Emergency stop button (red) • Emergency stop button directly on the unit, thus a stop is possible directly on the switch • Rope status display for set-up and maintenance • Adjustment indicator for correct setting of the rope tension Reset button (blue) • In the case of concealed installation, an emergency stop on the unit is not permitted; BERNSTEIN offers units with “only” reset buttons for this purpose Flexible contact assembly • A maximum of 4 contacts are available for monitoring of the emergency stop function • An individual assignment of the number and...
Open the catalog to page 5Order data SRO SRO-I73...VT... Article number Contact type without emergency stop 6011811127 Contact type Insulated encapsulated without emergency stop 6012811136 Contact type Contact type Metal encapsulated SRO-I73...VT... Article number with emergency stop Insulated encapsulated SRO-M78...VT... Article number with emergency stop Metal encapsulated
Open the catalog to page 6Order data SRO SRO-M78...HL... Article number Contact type without emergency stop 6012811144 Contact type Metal encapsulated without emergency stop 6012811152 Contact type Metal encapsulated SRO-M78...HL... Article number with emergency stop 6012811148 Contact type Metal encapsulated SRO-M78...HR... Article number with emergency stop 6012811156 Metal encapsulated
Open the catalog to page 7The weather-proof all-rounder – SRM Even under extreme conditions, such as major temperature fluctuations, the SRM rope pull switch continues to work reliably. Product characteristics • Rope pull switch manufactured in accordance with IEC 60947-5-5 and ISO 13850 • Protection class IP67 • Stable and durable metal housing (Aluminium pressure die-casting) • Suitable for outdoor use • Can be deployed at temperatures between –30 °C and +80 °C • Easy to fasten due to hole template patterns common for most rope pull switch models • Flexible handling with three M20 x 1.5 cable entries • Easy...
Open the catalog to page 8Double function of palm button • The BERNSTEIN rope pull switch emergency stop buttons provide emergency stop function and pull release on actuation or in the event of cable breakage Switching status indicator • Highly readable switching status indicator located on the switch • Yellow in the inspection window indicates locking status • Green in the inspection window indicates operational readiness Normal operation Rope actuation by operator – Latch automatically Rope rupture – Latch automati
Open the catalog to page 10Rope status display • Rope status display for set-up and maintenance • Adjustment indicator for correct setting of the rope tension Rope too tight (under influence of cold) Rope too slack (under influence of heat) Teleindication for monitoring the rope tension • Critical rope conditions caused by any change in length of the rope are reported via an integrated sensor. Unnecessary downtime of the machine can be avoided by appropriately readjusting the tension • This signal is not highly safety critical • BERNSTEIN also offers additional indicator lights as optional extras • Rated operating...
Open the catalog to page 11Order data SRM Article number * Contact type Article number * Contact type Quick-Fix QF, remote indicator E Quick-Fix QF, remote indicator E Quick-Fix QF, remote indicator E Quick-Fix QF, remote indicator E Metal encapsulated Metal encapsulated * further articles on request; ** temperature dependent – for more information see page 19 Eye LU, remote indicator E Eye LU, remote indicator E Eye LU, remote indicator E Eye LU, remote indicator E
Open the catalog to page 12Safety when you need it – SR The SR rope pull switch provides safety for your machine. Product characteristics • Rope pull switch manufactured in accordance with IEC 60947-5-5 and ISO 13850 • Protection class IP67 • Stable and durable plastic housing (PA 6 GV) • Can be deployed at temperatures between –25 °C and +70 °C • Flexible handling with three M20 x 1.5 cable entries • Easy installation due to the maximum connection space • Up to four positively driven NC contacts � Technical data • Rated insulation voltage: Ui 250 V AC • Rated operating voltage: Ue 240 V • Utilization category /...
Open the catalog to page 14Rope status display • Rope status display for set-up and maintenance • Adjustment indicator for correct setting of the rope tension Rope too tight (under influence of cold) Rope too slack (under influence of heat) Double function of palm button • The BERNSTEIN rope pull switch emergency stop buttons provide emergency stop function and pull release on actuation or in the event of cable breakage • There are two options to choose from with the SR series: - Pull release - Emergency stop function + pull release (switches with this dual function are marked with “NA” in the designation) Cage clamp...
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