Reset Button: Temperature Range -25°C to +70°C

Q: What is the purpose of a reset button in a safety relay controller?

It manually resets the safety circuit after a fault, ensuring the machine only restarts when intentionally activated by an operator, preventing automatic restarts that could cause hazards.

Q: Can a reset button be used interchangeably between different safety relay brands?

No, reset buttons are often brand-specific due to electrical ratings, mounting dimensions, and compatibility with the relay's internal logic. Always consult manufacturer specifications.

Q: How often should a reset button be tested for functionality?

Test during regular safety system checks, typically monthly or as per the machine's maintenance schedule, to ensure reliable operation in emergencies.

Component Specifications

Definition

A manually operated push-button component integrated into safety relay controllers, designed to reset the safety circuit after a fault or emergency stop condition has been cleared. It ensures the machine cannot restart automatically, requiring intentional human intervention to restore normal operation, thereby enhancing operator safety.

Working Principle

When pressed, the reset button closes a contact within the safety relay controller, allowing the safety circuit to be re-energized if all safety conditions (e.g., guards closed, sensors clear) are met. It typically features a latching or maintained action to prevent accidental resets and may include visual indicators (e.g., LED) to show status.

Materials

Housing: Polyamide (PA66) or ABS plastic with UL94 V-0 rating for flame resistance; Contacts: Silver alloy or gold-plated for low resistance and durability; Spring: Stainless steel; Actuator: Thermoplastic with IP65/IP67 rating for dust/water resistance.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Mounting	22.5mm or 30.5mm panel cutout
Current Rating	2A-10A
Voltage Rating	24V DC/110-240V AC
Electrical Life	100,000 cycles
Mechanical Life	1,000,000 cycles
Operating Force	3-5N
Protection Rating	IP65
Temperature Range	-25°C to +70°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 13849-1, ISO 12100, IEC 60947-5-1, DIN EN 60204-1

Parent Products

This component is used in the following industrial products

Safety Relay Controller

A specialized electrical device designed to monitor safety-critical functions and ensure safe operation of machinery by controlling safety circuits.

View Product Details

Engineering Analysis

Risks & Mitigation

Accidental reset leading to unexpected machine startup
Wear and tear causing contact failure
Incorrect installation bypassing safety functions

FMEA Triads

Trigger: Mechanical wear or contamination
Failure: Button jams or fails to actuate
Mitigation: Use sealed designs (IP65+) and schedule preventive maintenance

Trigger: Electrical overload
Failure: Contact welding or arcing
Mitigation: Adhere to voltage/current ratings and install protective circuits

Trigger: Human error
Failure: Unauthorized or premature reset
Mitigation: Implement lockout/tagout procedures and training

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.5mm for mounting dimensions; contact resistance <50mΩ after lifecycle tests

Test Method

Functional testing per IEC 60947-5-1, including endurance, dielectric strength, and environmental stress tests

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Reset Button

Manufacturer profiles associated with Reset Button.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the purpose of a reset button in a safety relay controller?