BL SERIES

2NO2NC SNAP

BL-series 2NO2NC snap switches feature aluminium die-cast bodies, CE approval, 10A/500V rating, <10mΩ contacts, >200MΩ insulation and −5°C to 85°C operating range; robust compact precision actuator options.

Suitable for Industries:

Industrial safety interlocks and guards

Automated assembly lines

Conveyor & bulk-material handling systems

Key Feature

BL Series

2NO2NC SNAP LIMIT SWITCHES

Model No:

BL400PB

Actuator:

Plunger

Model No:

BL400PBA

Actuator:

Adjustable Plunger

Model No:

BL400R

Actuator:

Roller Plunger

Model No:

BL400PBA

Actuator:

Adjustable Side Plunger

Model No:

BL400SR

Actuator:

Side Roller Plunger

Model No:

BL600BS

Actuator:

Belt Sway

Model No:

BL600L1/2 3

Actuator:

Belt Sway Crank Lever

Model No:

BL600LA

Actuator:

Adjustable Crank Lever

Model No:

BL600LA50R

Actuator:

Adjustable Crank Lever With Rubber Roller

Model No:

BL800CW

Actuator:

Cat Whisker

Model No:

BL800SPR

Actuator:

Spring Rod

Model No:

BL800NR

Actuator:

Offset Polymer Rod

Model No:

BL800SR

Actuator:

Offset Steel Rod

Electrical Specifications

Current Rating

10A

Voltage Rating

500V

Contact Resistance:

< 10 milliohms

Insulation Resistance:

> 200 megaohms at 1000 V DC

General Information

Contact Configuration:

2 Normally Open (NO) + 2 Normally Closed (NC)

Operation:

Snap-action

Certifications:

CE Approved

Operating Temperature

–5°C to +85°C

Material & Build

Material:

Aluminium die-cast

Color:

Blue / Black

Fields

Applications & Industries

Industrial safety interlocks and guards

Automated assembly lines

Conveyor & bulk-material handling systems

Case Study

Real-World Profit Impact

Precision safety switching in high-throughput assembly

Automotive Assembly Line Integration

Reduced unplanned line stoppages by 38%, raised uptime, and strengthened operator safety within ninety days.

Installed BL-series 2NO2NC snap switches on assembly checkpoints; instant, reliable contact switching reduced false trips, simplified diagnostics, cut maintenance time and preserved throughput under high-cycle, harsh automotive production conditions consistently.

Features

Robust Industrial Control

Advantages that matter for your industrial operations

Dual-Circuit Switching Reliability

2NO2NC SNAP configuration delivers precise, redundant contact transitions ensuring dependable control signals during rapid machine operations.

High-Strength Die-Cast Housing

Aluminium body resists vibration, impacts and harsh conditions, maintaining stable performance across demanding industrial environments.

Low-Resistance Contact Efficiency

<10mΩ contact paths reduce heat and loss, supporting consistent electrical performance under frequent switching cycles.

Elevated Insulation Integrity

200MΩ insulation at 1000V enhances safety by preventing leakage and ensuring strong dielectric protection continuously.

Wide Temperature Stability

Operational range of −5°C to +85°C ensures reliable functionality across varied indoor and outdoor industrial settings.

Standards

Certifications & Compliance

ISO Certified

International quality management standards

CE Marking

European conformity certification

RoHS Compliant

Environmentally responsible manufacturing

FAQ

Frequently Asked Questions

What does 2NO2NC SNAP mean on the BL-series switches?

It indicates two normally-open and two normally-closed snap-action contacts (fast, positive changeover) for redundant switching.

Are BL-series 2NO2NC SNAP switches CE certified and suitable for industrial use?

Yes — BL-series lists CE approval and industrial ratings suitable for heavy-duty applications.

What electrical load can a BL-series 2NO2NC SNAP switch handle?

Rated for 10A switching at a 500V voltage rating; suitable for many control and power circuits.

How does <10mΩ contact resistance benefit a BL-series 2NO2NC SNAP switch?

Low contact resistance reduces voltage drop and heating, improving signal integrity and reducing wear.

What does the insulation spec (>200MΩ @ 1000V DC) imply for BL-series switches?

High insulation resistance minimizes leakage and improves safety when exposed to high voltages or contaminants.

Can BL-series 2NO2NC SNAP switches operate in harsh temperatures?

Yes — specified operating range from −5°C to +85°C covers many industrial environments.

Which actuators are compatible with the BL-series 2NO2NC SNAP family?

Wide options: plungers, adjustable plungers, roller plungers, side rollers, crank levers, whiskers, rods and belt-sway actuators.

Are BL-series 2NO2NC SNAP switches serviceable or replaceable on-site?

The robust die-cast design and modular actuators allow on-site replacement of actuators and easier maintenance.

How do BL-series 2NO2NC SNAP switches improve machine safety systems?

Dual contact sets provide redundant signaling for safety interlocks, fast SNAP action reduces ambiguous transition states.

How should I select a BL-series 2NO2NC SNAP model for my application?

Match required actuator type, contact rating (10A/500V), environment (temperature, moisture), and desired contact/insulation specs to application needs.

Ready to Order?

Get in touch with our sales team or download technical documentation