安全继电器

SCR Safety Relais
From Signalling to Evaluation –
Responsable Solutions for Safety ApplicationsThe Rational Solution: Bernstein safety relays for all applications
Bernstein AG offers a complete range of products to suit your particular application,
from the safety switch to the safety relay. Our SCR safety relays (safety gate monitoring
devices) are designed to reliably monitor input signals, e. g. those generated by
Bernstein limit switches, safety-switches, -interlocking switches, -rope pull switches, -
sensors or two-hand controls.
13 23 33 41 13 23 33 41 13 23 33 43 S21 S22 A 2 31 47 48 S21 S22 A 2 31 47 48
A1S34S33S12 A1S34S33S12 A1U1 Y1Y2 A1 S11 S12 32 57 58 A1 S11 S12 32 57 58
Power Power Stop Power Time 1 Power Time 1
Channel 2 Channel 2 Channel 2 Ch. 1 Ch. 1
Channel 1 Channel 1 Channel 1 Ch. 2 Time 2 Ch. 2 Time 2
Ch. 3(t) Ch. 3(t)
Ch. 4(t) Ch. 4(t)
S21S22S11A2 S21S22S11A2 K1K21U22A2 S10 S33 13 14 S10 S33 13 14
14 24 34 42 14 24 34 42 14 24 34 44 S35 S34 23 24 S35 S34 23 24
Des.: SCR 4-W22-3.5-D SCR 4-W22-3.5-SD SCR 4-W22-4.6-DXT SCR 4-W35-4.6-Dta SCR 4-W35-4.6-Dtau
Art. Nr.: 607.5111.009 607.5111.010 607.5111.012 607.5121.013 607.5121.014
• EMERGENCY STOP • EMERGENCY STOP • Expansion module for • EMERGENCY STOP • EMERGENCY STOP
relay/safety gate monitors relay/safety gate monitors safety relays conforming relay/safety gate monitors relay/safety gate monitors
• Up to Control Category 4 • Up to Control Category 4 to VDE 0113 with adjustible time delay-off with adjustible time delay-off
• 3 NO safety outputs • 3 NO safety outputs • Up to Control Category 4 safety outputs safety outputs
(enabling paths) (enabling paths) • 4 NO safety outputs • Up to Control Category 4 • Up to Control Category 4
• 1 NC auxiliary output • 1 NC auxiliary output (enabling paths) • Simultaneous (<_3 s) • No simultaneous operation
(signal output) (signal output) • 1 NC auxiliary output operation of inputs required of inputs required
• No start button monitoring • Start button monitoring (signal output) • 2 NO safety outputs • 2 NO safety outputs
• Cross-wire monitoring • Cross-wire monitoring • Cross-wire monitoring (enabling paths) (enabling paths)
• LED display for output status • LED display for output status • LED display for output status • 2 NO timed delay off safety • 2 NO timed delay off safety
and mains supply and mains supply and mains supply outputs (enabling paths) outputs (enabling paths)
• 24 V AC / DC • 24 V AC / DC • 24 V AC / DC • 1 NC auxiliary output • 1 NC auxiliary output
(electronic fuse) (electronic fuse) (electronic fuse) (signal output) (signal output)
• Dimensions • Dimensions • Dimensions • Timer delay range • Timer delay range
(WxHxD)22,5x114,5x99mm (WxHxD)22,5x114,5x99mm (WxHxD)22,5x114,5x99mm 0.05 s - 600 s adjustable in 0.05 s - 600 s adjustable in
• CE, TÜV, UL, C-UL • CE, TÜV, UL, C-UL • CE, TÜV, UL, C-UL 64 stages 64 stages
• Automatic or manual re-start • Automatic or manual re-start
• Cross-wire monitoring • Cross-wire monitoring
• LED display for output status • LED display for output status
• 24 V AC / DC • 24 V AC / DC
(electronic fuse) (electronic fuse)
• Dimensions • Dimensions
(WxHxD)35x114,5x99mm (WxHxD)35x114,5x99mm
The technical data sheets for all relays can be downloaded • CE, TÜV, UL, C-UL • CE, TÜV, UL, C-UL
from www.bernstein-ag.de under Download products.Bernstein SCR relays are housed in slim-line DIN rail housings, but despite their com-
pact dimensions they have a huge range of applications right through to control
category 4 in accordance with EN 945-1.
As defined by this standard, the SCR relays monitor the correct position and reliable
operation of inputs from the safety sensors or safety switch contacts. Evaluation
of this information is made and the safety outputs controlling the power elements
such as power contactors or frequency converters will either stop the machine
in an emergency or allow re-start when safe to do so. A further check of ‘power
elements’ correct stop function is made via the feedback loop.
S21 S22 A 2 31 47 48 A1 Y1 13 23 A1 Y1 13 23 A 1 13 23 31 13 23 33BR1
A1 S11 S12 32 57 58 34 Y1 Y2 A1BR2Y1 Y2
Power
Power Power Power Power
Time 1 Channel 2
Ch. 1 Channel 2 Channel 2 Channel 2
Ch. 2 Time 2 Channel 1 Channel 1 Channel 1 Channel 1
Interlock
Ch. 3(t)
Ch. 4(t)
S10 S33 13 14 S11S12S21S22 S11S12S22A2
S35 S34 23 24 14 24 Y2 A2 14 24 Y2 A2 14 24 32 A 2 14 24 34
SCR 4-W35-4.6-Dton SCR 2-W22-2.5 SCR 2-W22-2.5-S SCR 4-W22-2.6-D2H SCR ON4-W22-3.6-S
607.5121.017 607.5111.015 607.5111.016 607.5111.018 607.5111.019
• EMERGENCY STOP • EMERGENCY STOP • EMERGENCY STOP • Two-hand control unit for • Safety emergency stop relay
relay/safety gate monitors relay/safety gate monitors relay/safety gate monitors Type I-III c in accordance with for safety light barriers /
with adjustible time delay-off • Up to Control Category 2 or • Up to Control Category 2 or ZH1 / 456 and DIN EN 574 curtains
safety outputs 3 (depending on mode of 3 (depending on of • Up to Control Category 4 • Up to Control Category 4
• Up to Control Category 4 application) application) • Synchronisation time: 0.5s • 3 NO safety outputs
• No simultaneous operations • 2 NO safety outputs • 2 NO safety outputs • 2 NO safety outputs (enabling paths)
of imputs required (enabling paths) (enabling paths) (enabling paths) • Monitored start by selectable
• 2 NO safety outputs • No start button monitoring • Start button monitoring • 1 NC auxiliary output external jumper lead
(enabling paths) • LED display for output status • LED display for output status (signal output) • LED display for output status
• 2 NO timed delay-on safety and mains supply and mains supply • 1 PLC output and mains supply
outputs (enabling paths) • 24 V AC / DC • 24 V AC / DC • LED display for output status • 24 V AC / DC
• 1 NC auxiliary output (electronic fuse) (electronic fuse). and mains supply (electronic fuse)
(signal output) • Dimensions • Dimensions • 24 V AC / DC • No cross-short safety
• Timer delay range (WxHxD)22,5x114,5x99mm (WxHxD)22,5x114,5x99mm (electronic fuse) • Dimensions
0.05s - 600s adjustable in • CE, (TÜV, UL, C-UL pending) • CE, (TÜV, UL, C-UL pending) • Dimensions (WxHxD)22,5x114,5x99mm
64 stages (WxHxD)22,5x114,5x99mm • CE, TÜV, UL, C-UL
• Automatic or manual re-start • CE, TÜV, UL, C-UL
• Cross-wire monitoring
• LED display for output status
• 24 V AC / DC
(electronic fuse).
• Dimensions
(WxHxD)35x114,5x99mm
• CE, (TÜV, UL, C-UL pending)snoitacifidomottcejbuS·essalhcS·5002.80
257.0000.007
Safety switching devices from Bernstein
Limit switches Safety switches Safety interlocking switches
nMetal and plastic housings, nSlim-line plastic housings, nSlim-line plastic housings
with forced disconnect of with separate actuator with separate actuator,
NC contact spring or magnetic locking
nStandard plastic housings, nMetal housings with separate
with separate actuator actuator, spring or magnetic
locking
Safety rope pull switches

安全继电器是一种专门设计用于确保电气系统和机械设备操作过程中安全性的继电器。它们在工业自动化、过程控制、电梯、机器人技术、汽车电子以及许多其他应用领域中发挥着关键作用。这类继电器通常具有以下特点： 1. 高度可靠性：为了保证人员安全和设备正常运行，安全继电器采用优质的材料和严格的制造工艺，能够在极端条件下稳定工作，如高温、高压、振动等。 2. 短路保护：具备过载和短路保护功能，能在电流超过设定阈值时迅速断开电路，防止设备过热或损坏，并在故障发生后自动复位以准备再次启动。 3. 安全触点：其常闭（NC）和常开（NO）触点设计用于区分正常状态和安全停机状态，当达到预设条件时，触点能够快速切换，切断危险信号回路，避免意外动作。 4. 易于集成：安全继电器通常配备明确的输入/输出端子布局和标准化接口，便于与其他安全设备（如急停按钮、限位开关等）连接，形成完整的安全链。 5. 符合认证标准：符合国际及行业安全标准，如IEC 60947-5-1 (电气安全 - 控制器件 - 继电器) 和EN 60204-1 (电梯 - 安全要求)，确保在整个生命周期内都能有效保障人身与设备的安全。