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Siemens

3TK2828-1BB40

Siemens Sirius 3TK2828-1BB40 Safety Relay

Siemens

From $187.91In stockSource updated 6/24/2026

Product Description

- Brand: Siemens - Model: 3TK2828-1BB40 - Type: Safety Relay / Safety Monitoring Relay - Part number: 3TK2828-1BB40 - Technical specifications: - Supply voltage: 24 V DC - Inputs: 2-channel - Outputs: 1 NO + 2 NC - Rated operational current: 0.5 A per output (DC-13) - Response time: ≤ 30 ms (typical) - Recovery time: ≤ 100 ms - Safety category: Category 4 (EN ISO 13849-1); Performance Level PL e; SIL 3 (IEC 61508) - Diagnostic coverage: High - Additional features: Cross-circuit detection; short-circuit monitoring; automatic/manual start; LED indicators for supply, channel 1/2 status, output state, and faults; compact design; screw terminals; suitable for safety circuits up to 24 V DC; part of SIRIUS modular safety system - Operating temperature: -25°C to +60°C - Protection: IP20 - Mounting: DIN rail - Standards: IEC 61508, EN ISO 13849-1, EN 62061, IEC 60947-5-1; CE, UL, cULus approvals Weight: 450 g Dimensions: 120 x 45 x 100 mm Country of origin: Germany HS code: 8536.49

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Used

Price: $187.91
Availability: Available to order
Lead time: Quoted after RFQ

Specifications

Brand
Siemens
Model
3TK2828-1BB40
Type
Safety Relay / Safety Monitoring Relay
Part Number
3TK2828-1BB40
Supply voltage
24 V DC
Inputs
2-channel
Outputs
1 NO + 2 NC
Rated operational current
0.5 A per output (DC-13)
Response time
≤ 30 ms (typical)
Recovery time
≤ 100 ms
Safety category
Category 4 (EN ISO 13849-1); Performance Level PL e; SIL 3 (IEC 61508)
Diagnostic coverage
High
Additional features
Cross-circuit detection; short-circuit monitoring; automatic/manual start; LED indicators for supply, channel 1/2 status, output state, and faults; compact design; screw terminals; suitable for safety circuits up to 24 V DC; part of SIRIUS modular safety system
Operating temperature
-25°C to +60°C
Protection
IP20
Mounting
DIN rail
Standards
IEC 61508, EN ISO 13849-1, EN 62061, IEC 60947-5-1; CE, UL, cULus approvals
Weight
450 g
Dimensions
120 x 45 x 100 mm
Country of origin
Germany
HS code
8536.49
Product
Technical specifications:

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We are not an authorized distributor, reseller, or representative of Siemens, Mitsubishi, Omron, or other manufacturers listed on this site. All product names, trademarks, brands, and logos are the property of their respective owners. Products may be used, refurbished, surplus, or sourced from the secondary market unless otherwise stated.

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FAQ

Is 3TK2828-1BB40 discontinued?

3TK2828-1BB40 is commonly available as a spare part. Submit an RFQ for pricing and lead time.

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What condition options are available for 3TK2828-1BB40?

We list Used for 3TK2828-1BB40 (indicative availability and pricing — confirm on RFQ). See our condition policy at https://www.usedautomations.com/condition-codes.