Safety Relays

Фирмата ELESTA relays GmbH, основана в Швейцарския град Bad Ragaz, е един от водещите производители в сферата на т. нар. Safety-релета, с подсилени контакти. Многообразната гама от релета, позволява на ELESTA relays, да предложат првилния продукт за почти всички приложения.
Специализирайки в производството на релета с подсилени контакти, ELESTA relays впечатлява своите клиенти и пазарните тенденции с постоянни иновации, които поставят нови върхове в света на Safety-релетата.
The SIR10, series contains powerful, compact 10-pole relays with forcibly guided contacts in accordance with EN 50205 for switching loads up to 10 A. Crown contacts for high switching reliability. Wide coil working ranges.
- Wide coil working ranges
- Contact mounting more than 10 variations
- Switching current range 10 mA to 10 A
- Coil voltage 6 VDC to 110 VDC (non-standard coils available upon request)
- Coil loss power 1.3 W
- Design (LxWxH) 85.5 x 20 x 32 mm
- Approvals: UL, cUL, SEV, TÜV
- Manipulation-protected socket for PCB mounting
Areas of application: lifts, machine tools, construction machinery, transportation, robotics
The SIR8, series contains powerful, compact 8- pole relays with forcibly guided contacts in accordance with EN 50205 for switching loads up to 10 A. Crown contacts for high switching reliability. Wide coil working ranges.
- Wide coil working ranges
- Contact mounting more than 10 variations
- Switching current range 10 mA to 10 A
- Coil voltage 6 VDC to 110 VDC (non-standard coils available upon request)
- Coil loss power 1.3 W
- Design (LxWxH) 85.5 x 20 x 32 mm
- Approvals: UL, cUL, SEV, TÜV
- Manipulation-protected socket for PCB mounting
Areas of application: lifts, machine tools, construction machinery, transportation, robotics
The SIF6 series contains 6-pole relays with forcibly guided contacts according with EN 50205 in an extremely flat design (10.9 mm). This relay series stands out for a large switching current range. Component installation under the relay is possible.
- Contact mounting 4NO / 2NC
- Switching current range 5 mA to 8 A
- Coil voltage 5 VDC to 110 VDC (non-standard coils available upon request)
- Coil power 0.66 W
- Design (LxWxH) 53.6 x 33.5 x 10.9 mm
- Approvals: UL, cUL, SEV, TÜV
Areas of application: process technology, mining, lifting technology, interfaces, remote control
Very compact SIS6, 6-pole relays with forcibly guided contacts in accordance with EN 50205. In addition to their very small dimensions, this relay series stands out thanks to its high shock resistance, large exciting voltage range and low coil loss power, as well as its high switching reliability due to its notched crown contact .
- Contact mounting 4NO / 2NC
- Switching current range 5 mA to 6 A
- Coil voltage 5 VDC to 110 VDC (non-standard coils available upon request)
- Coil power 0.66 W
- Design (LxWxH) 48 x 16.6 x 16.5 mm
- Approvals: UL, cUL, SEV, TÜV
Areas of application: shore applications, interfaces, medical technology, robotics, machine tools, remote control
The SIP6 series contains extremely powerful 6-pole relays with forcibly guided contacts in accordance with EN 50205 for switching loads up to 16 A. Crown contacts for high switching reliability at the two readback contacts and 4 power contacts up to 16A and 60A surge currents. For the highest loads during 3-phase applications and DC loads.
- Contact mounting 4NO as Power Contacts 1NO / 1NC or 2NC Signal contacts
- Switching current range 10 mA to 16 A
- Coil voltage 5 VDC to 220 VDC (non-standard coils available upon request)
- Coil power 1.3 W
- Design (LxWxH) 84.6 x 20 x 32 mm
- Approvals: UL, cUL, SEV, TÜV
Areas of application: Hydraulic/pneumatic controls, Construction equipment, transportation, motion control, door control
The SIR6 SEN, series contains powerful, compact 6-pole relays with forcibly guided contacts in accordance with EN 50205 for switching loads up to 10 A. Crown contacts for high switching reliability.
- Wide coil working ranges
- Contact mounting 5NO / 1NC, 4NO / 2NC or 3NO / 3NC
- Switching current range 10 mA to 10 A
- Coil voltage 6 VDC to 110 VDC (non-standard coils available upon request)
- Coil loss power 0.5 W
- Design (LxWxH) 58.9 x 16 x 30.7 mm
- Approvals: UL, cUL, SEV, TÜV
- Manipulation-protected socket for PCB mounting
Areas of application: lifts, machine tools, construction machinery, transportation, robotics
The SIR6, series contains powerful, compact 6-pole relays with forcibly guided contacts in accordance with EN 50205 for switching loads up to 10 A. Crown contacts for high switching reliability.
- Wide coil working ranges
- Contact mounting 5NO / 1NC, 4NO / 2NC or 3NO / 3NC
- Switching current range 10 mA to 10 A
- Coil voltage 6 VDC to 110 VDC (non-standard coils available upon request)
- Coil loss power 0.75 W
- Design (LxWxH) 58.9 x 16 x 30.7 mm
- Approvals: UL, cUL, SEV, TÜV
- Manipulation-protected socket for PCB mounting
Areas of application: lifts, machine tools, construction machinery, transportation, robotics
The SIF4 series contains 4-pole relays with forcibly guided contacts according with EN 50205 in an extremely flat design (10.9 mm). This relay series stands out for a large switching current range. Component installation under the relay is possible.
- Contact mounting 3NO / 1NC
- Switching current range 5 mA to 8 A
- Coil voltage 5 VDC to 110 VDC (non-standard coils available upon request)
- Coil power 0.7 W
- Design (LxWxH) 41 x 29.4 x 10.9 mm
- Approvals: UL, cUL, SEV, TÜV
Areas of application: access control, interfaces, transportation, robotics, machine tools
Very compact SIS4 series, 4-pole relays with forcibly guided contacts in accordance with EN 50205. In addition to their very small dimensions, this relay series stands out thanks to its high shock resistance, large exciting voltage range and low coil loss power, as well as its high switching reliability due to its notched crown contact .
- Contact mounting 2NO / 2NC or 3NO / 1NC
- Switching current range 5 mA to 6 A
- Coil voltage 5 VDC to 110 VDC (non-standard coils available upon request)
- Coil power 0.5 W
- Design (LxWxH) 48 x 16.6 x 16.5 mm
- Approvals: UL, cUL, SEV, TÜV
Areas of application: off-shore applications, interfaces, medical technology, robotics, machine tools, remote control
The SIR4 SEN, series contains powerful, compact 4-pole relays with forcibly guided contacts in accordance with EN 50205 for switching loads up to 10 A. Crown contacts for high switching reliability.
- Wide coil working ranges
- Contact mounting 2NO / 2NC or 3NO / 1NC
- Switching current range 10 mA to 10 A
- Coil voltage 6 VDC to 110 VDC (non-standard coils available upon request)
- Coil loss power 0.36 W
- Design (LxWxH) 46.4 x 16 x 30.7 mm
- Approvals: UL, cUL, SEV, TÜV
- Manipulation-protected socket for PCB mounting
Areas of application: process technology, lifts, machine tools, vehicle construction
The SIR4P contains extremely powerful, compact 4-pole power relays with forcibly guided contacts in accordance with EN 50205 for switching loads up to 12 A. 2 powerful contacts for loads with a high surge current (up to 60A) in the AC and DC range and 2 checkback contacts.
- Contact mounting 2NO / 2NC or 3NO / 1NC
- Switching current range 10 mA to 12 A
- Coil voltage 6 VDC to 110 VDC (non-standard coils available upon request)
- Coil loss power 0.75 W
- Design (LxWxH) 46.4 x 16 x 30.7 mm
- Approvals: UL, cUL, SEV, TÜV
Areas of application: door controls, motion control, transportation, farm machinery
The SIR4, series contains powerful, compact 4-pole relays with forcibly guided contacts in accordance with EN 50205 for switching loads up to 10 A. Crown contacts for high switching reliability.
- Wide coil working ranges
- Contact mounting 2NO / 2NC or 3NO / 1NC
- Switching current range 10 mA to 10 A
- Coil voltage 6 VDC to 110 VDC (non-standard coils available upon request)
- Coil loss power 0.6 W
- Design (LxWxH) 46.4 x 16 x 30.7 mm
- Approvals: UL, cUL, SEV, TÜV
- Manipulation-protected socket for PCB mounting
Areas of application: process technology, lifts, machine tools, vehicle construction

- PCB relay with forcibly guided contacts
- Protective separation between coil/control contacts and output contacts (> 8mm) as well as protective separation between the output contacts themselves (> 10mm)
- EN 50205 type A
Contact mounting:
SLR312 3NO/1NC
SLR222 2NO/2NC
- Small external dimensions
- Mean coil power 0.6W
- Holding power 0.18W
- For Railway Applications: EN 50155
Standard coils for direct current (other voltages on request)
Nominal voltage VDC |
Min. pick-up voltage at 20°C |
Drop-out voltage at 20 °C |
Nominal current in mA |
Resistance in Ohm at 20 °C |
Tolerance in % |
5 |
3,5 |
> 0,5 |
121,0 |
41 |
± 10 |
6 |
4,2 |
> 0,6 |
100,0 |
60 |
± 10 |
12 |
8,4 |
> 1,2 |
50,0 |
240 |
± 10 |
18 |
12,6 |
> 1,8 |
33,3 |
540 |
± 10 |
24 |
16,8 |
> 2,4 |
25,2 |
950 |
± 10 |
48 |
33,6 |
> 4,8 |
12,6 |
3‘800 |
± 10 |
60 |
42,0 |
> 6,0 |
10,0 |
6‘000 |
± 13 |
110 |
77,0 |
> 11,0 |
5,5 |
20‘000 |
± 15 |
The SIM4 series, include compact 4 pole relays with forcibly guided contacts in accordance with EN 50205, with extrusion-coated coil design which is also suitable for use in the ATEX area. Crown contacts for high switching reliability. Extremely high air gaps and creepage distances.
- Contact mounting 2NO / 2NC or 3NO / 1NC
- Switching current range 10 mA to 8 A
- Coil voltage 5 VDC to 110 VDC (non-standard coils available upon request)
- Coil loss power 1 W
- Design (LxWxH) 36.1 x 12.7 x 25.6 mm
- Approvals: UL, cUL, SEV, TÜV
- Manipulation-protected socket for DIN rail and PCB mounting
Areas of application: process technology, mining, lifting technology, interfaces, remote control
Very compact SIS3 SEN, series 3-pole relays with forcibly guided contacts in accordance with EN 50205. In addition to their very small dimensions, this relay series stands out thanks to its high shock resistance, large exciting voltage range and low coil loss power, as well as its high switching reliability due to its notched crown contact.
- Contact mounting 2NO / 1NC
- Switching current range 5 mA to 6 A
- Coil voltage 5 VDC to 110 VDC (non-standard coils available upon request)
- Coil power 0.4 W
- Design (LxWxH) 29.2 x 16.6 x 16.5 mm
- Approvals: UL, cUL, SEV, TÜV
Areas of application: medical technology, sensors, interfaces, transportation, motion control, door control

The SIM3 series, include compact 3 pole relays with forcibly guided contacts in accordance with EN 50205, with extrusion-coated coil design which is also suitable for use in the ATEX area. Crown contacts for high switching reliability. Extremely high air gaps and creepage distances.
- Contact mounting 2NO / 1NC
- Switching current range 10 mA to 8 A
- Coil voltage 5 VDC to 110VDC (non-standard coils available upon request)
- Coil loss power 0.75 W
- Design (LxWxH) 36.1 x 12.7 x 25.6 mm
- Approvals: UL, cUL, SEV, TÜV
- Manipulation-protected socket for DIN rail and PCB mounting
Areas of application: process technology, mining, lifting technology, interfaces, remote control
The SIM3 series, include compact 3 pole relays with forcibly guided contacts in accordance with EN 50205, with extrusion-coated coil design which is also suitable for use in the ATEX area. Crown contacts for high switching reliability. Extremely high air gaps and creepage distances.
- Contact mounting 2NO / 1NC
- Switching current range 10 mA to 8 A
- Coil voltage 5 VDC to 110VDC (non-standard coils available upon request)
- Coil loss power 0.75 W
- Design (LxWxH) 36.1 x 12.7 x 25.6 mm
- Approvals: UL, cUL, SEV, TÜV
- Manipulation-protected socket for DIN rail and PCB mounting
Areas of application: process technology, mining, lifting technology, interfaces, remote control
Very compact SIS2 series, 2-pole relays with forcibly guided contacts in accordance with EN 50205. In addition to their very small dimensions, this relay series stands out thanks to its high shock resistance, large exciting voltage range and low coil loss power, as well as its high switching reliability due to its notched crown contact.
- Contact mounting 1NO / 1NC
- Switching current range 5 mA to 6 A
- Coil voltage 5 VDC to 60 VDC (non-standard coils available upon request)
- Coil power 0.27W
- Design (LxWxH) 29.2 x 16.6 x 16.5 mm
- Approvals: UL, cUL, SEV, TÜV
Areas of application: medical technology, sensors, interfaces, transportation, motion control, door control
The SIM2, series include compact 2 pole relays with forcibly guided contacts in accordance with EN 50205, with extrusion-coated coil design which is also suitable for use in the ATEX area. Crown contacts for high switching reliability. Extremely high air gaps and creepage distances.
- Contact mounting 1NO / 1NC,
- Switching current range 10 mA to 8 A
- Coil voltage 5 VDC to 110VDC (non-standard coils available upon request)
- Coil loss power 0.5 W
- Design (LxWxH) 24.7 x 12.7 x 25.6 mm
- Approvals: UL, cUL, SEV, TÜV
Areas of application: process technology, mining, lifting technology, interfaces, remote control
The SIR282 SEN, series include classic 2-pole relays with forcibly guided contacts in accordance with EN 50205 in change-over contact design and a 5.08 mm grid. Extrusion-coated coil design also suitable for use in ATEX areas.
- Contact mounting 2CO
- Switching current range 10 mA to 8 A
- Coil voltage 5 VDC to 110 VDC (non-standard coils available upon request)
- Coil loss power 0.7 W, sensitive design
- Design (LxWxH) 30.2 x 12.7 x 25.6 mm
- Approvals: UL, cUL, SEV, TÜV
- DIN rail socket with modules, PCB socket
Areas of application: process technology, mining, sensors, interfaces
The SIR282, series include classic 2-pole relays with forcibly guided contacts in accordance with EN 50205 in change-over contact design and a 5.08 mm grid. Extrusion-coated coil design also suitable for use in ATEX areas.
- Contact mounting 2CO
- Switching current range 10 mA to 8 A
- Coil voltage 5 VDC to 110 VDC (non-standard coils available upon request)
- Coil power 1 W
- Design (LxWxH) 30.2 x 12.7 x 25.6 mm
- Approvals: UL, cUL, SEV, TÜV
- Manipulation-protected socket for DIN rail and PCB mounting
Areas of application: process technology, mining, lifting technology, interfaces, remote control
The SGR282 Z series include classic 2-pole relays with forcibly guided contacts in accordance with EN 50205 in change-over contact design and a 5.04 mm grid. Extrusion-coated coil design also suitable for use in ATEX areas.
- Contact Mounting 2CO
- Switing current range10 mA to 6 A
- Coil-Voltage 5 VDC to 110 VDC (non-standard coils available upon request)
- Coil Power 1 W
- Design(LxWxH) 30.2 x 12.7 x 25.6 mm
- ApprovalsUL, cUL, SEV, TÜV
- DIN rail socket with modules, PCB socket
Areas of Application: Verfahrenstechnik, Bergbau, Sensorik, Interface
The SGR282 Z series include classic 2-pole relays with forcibly guided contacts in accordance with EN 50205 in change-over contact design and a 5.04 mm grid. Extrusion-coated coil design also suitable for use in ATEX areas.
- Contact Mounting 2CO
- Switing current range10 mA to 6 A
- Coil-Voltage 5 VDC to 110 VDC (non-standard coils available upon request)
- Coil Power 1 W
- Design(LxWxH) 30.2 x 12.7 x 25.6 mm
- ApprovalsUL, cUL, SEV, TÜV
- DIN rail socket with modules, PCB socket
Areas of Application: Verfahrenstechnik, Bergbau, Sensorik, Interface