Industrial Control Expansion Solution – DOLD BN3081 | Extension Module
Where This Product Is Used
The DOLD BN3081 Extension Module is deployed wherever a base timing or monitoring relay requires additional output contacts to drive parallel loads, indicator circuits, or downstream control logic. Typical installation environments include:
- Machine tool control panels – expanding relay outputs to simultaneously trigger spindle brakes, coolant valves, and status lamps from a single timing command.
- Conveyor and material-handling systems – adding auxiliary contacts to sequence belt drives, diverters, and zone sensors without adding a separate relay module.
- Motor starter and soft-starter panels – providing additional N/O and N/C contacts for interlocking, feedback confirmation, and remote monitoring circuits.
- Safety and emergency-stop circuits – supplementing primary safety relays with monitored output contacts that feed PLC digital inputs or safety controllers.
- HVAC and building automation panels – extending control relay capacity for damper actuators, fan starters, and alarm annunciators in BMS cabinets.
- Process industry control rooms – adding output contacts to monitoring relays in pump, compressor, and agitator control loops.
Technical Specifications
| Manufacturer | DOLD (distributed via GEMS / Konmask) |
| Part Number | BN3081 |
| Module Type | Extension / Expansion Module for DOLD relay base units |
| Output Contacts | Additional relay output contacts (N/O + N/C configuration – confirm with datasheet for exact count) |
| Mounting | Direct plug-in to compatible DOLD base relay (DIN-rail mounted system) |
| Operating Voltage | Matched to host relay supply (24 V DC / 24–240 V AC – verify with base unit) |
| Contact Rating | Typically 250 V AC / 6 A (resistive) – refer to official DOLD BN3081 datasheet |
| Enclosure / Protection | IP20 (panel-mount, finger-safe terminals) |
| Operating Temperature | -20 °C to +55 °C |
| Dimensions | Refer to DOLD BN3081 dimensional drawing |
| Weight | TBC per unit |
| Certifications | CE, UL (verify current listing on DOLD official documentation) |
Note: Always cross-reference the official DOLD BN3081 datasheet for the most current electrical ratings before panel design.
Why Engineers Specify This Model
- Plug-and-play expansion – snaps directly onto compatible DOLD base relays with no additional wiring harness, reducing panel assembly time.
- Contact multiplication without extra DIN-rail space – adds output capacity within the existing relay footprint, critical in space-constrained enclosures.
- Consistent switching characteristics – output contacts are electrically matched to the DOLD base unit, ensuring uniform timing and load-switching performance across the system.
- Simplified BOM – one extension module replaces an additional standalone relay, terminal blocks, and interconnecting wiring, lowering total installed cost.
- DOLD ecosystem compatibility – designed and tested within the DOLD relay family, eliminating compatibility risk that arises from mixing third-party expansion modules.
Complete System Bill of Materials
A typical panel using the BN3081 extension module may include the following components (all available at Konmask.com):
- DOLD base timing or monitoring relay (compatible host unit – specify series when ordering)
- DOLD BN3081 Extension Module (this item)
- DIN-rail (35 mm TS35) and end stops
- Terminal blocks (4 mm² rated, matched to contact current)
- 24 V DC or AC/DC power supply (matched to relay coil voltage)
- Miniature circuit breaker (MCB) for control circuit protection
- Indicator lamps / pilot lights for output status feedback
- PLC digital input module (for feedback monitoring, if applicable)
Compliance & Industry Standards
- CE Marking – compliant with EU Low Voltage Directive and EMC Directive.
- IEC 61810 – electromechanical elementary relays standard.
- EN 60947-5-1 – low-voltage switchgear and controlgear, control circuit devices.
- UL Listing – verify current UL file number on DOLD’s official documentation for North American installations.
- RoHS Compliant – restriction of hazardous substances in electrical and electronic equipment.
Quality Assurance & Sourcing
Konmask.com sources the DOLD BN3081 through verified industrial distribution channels. Every unit is:
- Inspected for original manufacturer packaging and label integrity upon receipt.
- Stored in ESD-safe, climate-controlled warehouse conditions.
- Shipped with original manufacturer documentation where available.
- Traceable to batch/lot records for quality audit purposes.
We do not supply grey-market, refurbished, or counterfeit components. If you require a Certificate of Conformance (CoC) or test report, please contact us before ordering.
How to Source This Part
- Confirm compatibility – verify your DOLD base relay model accepts the BN3081 extension module (check DOLD compatibility matrix or contact our technical team).
- Add to cart – select quantity and proceed to checkout. Volume pricing available for orders of 5+ units.
- Request a quote – for project quantities (>10 units) or urgent delivery, email support@konmask.com or call +0086 19859288691.
- Lead time – in-stock units ship within 1–3 business days. Out-of-stock items: contact us for ETA from DOLD distribution.
- Export & cross-border orders – we support international shipping with proper commercial invoice and HS code documentation.
Application-Specific FAQ
Q: Which DOLD base relay models is the BN3081 compatible with?
A: The BN3081 is designed for specific DOLD relay series. Please provide your base relay model number to our team and we will confirm compatibility before you order.
Q: Can the BN3081 be used as a standalone relay?
A: No. The BN3081 is an extension module only and requires a compatible DOLD base relay to function. It has no independent coil or timing circuit.
Q: What is the maximum switching current for the extension contacts?
A: Typically 6 A at 250 V AC (resistive load). Always verify against the official DOLD BN3081 datasheet for your specific application and load type.
Q: Is the BN3081 suitable for safety relay applications (SIL/PLe)?
A: The BN3081 is a standard extension module and is not independently rated for functional safety (SIL/PLe). For safety-rated applications, consult DOLD’s safety relay product line and confirm system-level SIL/PL assessment with your safety engineer.
Q: Do you provide datasheets and wiring diagrams?
A: Yes. Contact support@konmask.com and we will provide the official DOLD BN3081 datasheet and wiring diagram.
Q: Can I order a sample unit before committing to a project quantity?
A: Yes. Single-unit orders are accepted. Contact us for project pricing on larger quantities.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
