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3SK1211-1BB40 — Safety Relay Output Expansion Module
relayPart number: 3SK1211-1BB40
3SK1211-1BB40 — Safety Relay Output Expansion Module — Siemens part reference 3SK1211-1BB40. Request a destination-specific quotation with shipping included. Confirm equipment model, serial number, quantity and any required certificates; availability, exact supply specification and warranty terms are checked before ordering.
Looking for Siemens 3SK1211-1BB40? This catalogue reference is listed under relay. Send the part number and your equipment details so we can confirm the specification, availability and a quotation including shipping.
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Technical specifications
| Manufacturer | Siemens |
|---|---|
| Part number | 3SK1211-1BB40 |
| Category | Sensors & automation |
| Item Type Name | Safety Relay Output Expansion Module |
| Product Family / Series | SIRIUS 3SK1 |
| Design | Expansion unit |
| Function | Output Expansion with Relay Enabling Circuits |
| Contact Configuration | 4 N/O (safety-related instantaneous switching) + 1 N/C (feedback loop) |
| control_supply_voltage | 24 V DC |
| output_contacts_undelayed | 4 Make Contacts (NO) |
| feedback_contact | 1 N/C |
| thermal_current_max | 5 A |
| operating_current_at_17V_min | 5 mA |
| switching_capacity_AC | 5 A at 24/115/230 V AC |
| switching_capacity_DC | 0.1/5 A at 24/230 V DC |
| make_time_typical | 15 ms |
| make_time_max_DC | 30 ms |
| backslide_delay_on_power_failure_typical | 10 ms |
| recovery_time_after_power_failure | 0.015 s |
| mechanical_service_life | 10 million cycles |
| electrical_service_life | 0.25 million cycles |
| termination_type | Screw terminal |
| mounting | 35 mm DIN top-hat rail / snap-on |
| protection_rating | IP20 |
| operating_temperature | -25 to 60 °C |
| overvoltage_category | Installation category III |
| degree_of_pollution | 3 |
| short_circuit_protection | gL/gG 6 A, or MCB type A 3 A / type B 2 A / type C 1 A |
| Safety Integrity Level | SIL 3 acc. to IEC 61508 |
| Performance Level | PL e acc. to EN ISO 13849-1 |
| Safety Category | Category 4 acc. to EN ISO 13849-1 |
| Pfhd | 1.7 x 10^-9 1/h acc. to EN 62061 |
| Proof Test Interval T1 | 20 years acc. to IEC 61508 |
| Emc Environment | Class B (suitable for domestic environments) |
| Dimensions | 22.5 x 100 x 121.6 mm (W x H x D) |
| Reference status | Published catalogue reference; confirm specification and fitment before ordering |
| Availability | On request |
Catalogue information may contain errors or be out of date. Full specifications and verified details are available on request. Confirm the part number and equipment fitment with us before ordering.
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