Panasonic SF2C-H24-N Type 2 Ultra-slim Safety Light Curtain

Technical Overview

Type 2 Ultra-slim Safety Light Curtain with 24 beams, 480mm protective height, Ø25mm MDO, 24VDC NPN output, PLc/SIL1 certified.

Key Features

Ultra-slim design, only 13.2mm deep, for installation in confined spaces.
Type 2 safety light curtain certified to PLc (ISO 13849-1) and SIL 1 (IEC 61508).
Hand protection type with 24 beam channels, 20mm beam pitch, and Ø25mm minimum detectable object.
480mm protective height for safeguarding specific access points.
Easy installation and reduced wiring through optical synchronization and 5-wire connection.
Integrated large, bright multi-purpose LED indicators for operational status, eliminating the need for separate indicators.
Easy beam axis alignment with an effective aperture angle of ±5° or less.
NPN safety rated control output.
Wide operating range of 0.1 to 3 meters.
OFF response time of 20ms or less for rapid machine shutdown.

Technical Specification Matrix

Parameter	Value
Part Number	SF2C-H24-N
Product Type	Ultra-slim Light Curtain [Type 2 PLc SIL1]
Number of Beam Channels	24
Protective Height	480 mm (18.898 in)
Minimum Detectable Object (MDO)	Ø25 mm (0.984 in) (20 mm / 0.787 in beam pitch)
Operating Range	0.1 to 3 meters (9.843 ft)
Supply Voltage	24VDC ±20% Ripple P-P 10% or less
Current Consumption (Emitter, indicators off)	35 mA or less
Current Consumption (Receiver, indicators off)	35 mA or less
Current Consumption (Emitter, indicators up)	45 mA or less
Current Consumption (Receiver, indicators up)	40 mA or less
Safety Rated Control Outputs	NPN x 1 (Control output OSSD, Lockout output SSD)
Safety Control Output OFF Response Time	20 ms or less
Safety Control Output ON Response Time	80 to 100 ms
Probability of Dangerous Failure per Hour (PFHD)	3.99 × 10^-9
Mean Time to Dangerous Failure (MTTFD)	100 years or more
Applicable Standards (International)	IEC 61496-1/2 (Type 2), ISO 13849-1: 2015 (Category 2, PLc), IEC 61508-1 to 3 (SIL 1)
Effective Aperture Angle	±5° or less
Net Weight (Emitter and Receiver total)	520 g approx.
Physical Weight (kg)	0.52
Dimensions L x W x H (cm)	48 x 4.3 x 1.32

Industrial Applications

1. Robotic Workcell Hand Protection

The SF2C-H24-N light curtain provides robust hand protection at the entry/exit points of robotic workcells and automated assembly lines where operators interact with machinery. Its 480mm protective height is ideal for safeguarding typical hand and forearm access zones.

Problem Solved

Prevents accidental injury to operators' hands and forearms by detecting intrusion into dangerous zones, thereby stopping robotic motion or machine operation before contact. The Ø25mm minimum detectable object ensures even small parts of a hand are detected.

Robotic safetyHand protectionMachine guardingAutomated assembly480mm protective heightØ25mm MDOPLcSIL 124VDC

2. Safeguarding Small Press and Forming Machines

This ultra-slim light curtain is perfectly suited for point-of-operation guarding on compact presses, bending machines, or other forming equipment. Its 13.2mm depth allows for integration into tight spaces around the machine's tooling.

Problem Solved

Mitigates the risk of crushing injuries by instantly stopping machine cycles if an operator's hand or fingers enter the hazardous area during material feeding or component placement. The fast 20ms OFF response time is critical for immediate machine shutdown.

Press safetyPoint-of-operation guardingForming machineryCrushing hazard20ms response timeUltra-slim designNPN output

3. Access Monitoring for Packaging and Material Handling Equipment

The SF2C-H24-N can be deployed at manual loading, unloading, or inspection stations on packaging lines, conveyor systems, and other material handling equipment to ensure operator safety during intervention.

Problem Solved

Ensures that automated sections of packaging and material handling machinery do not operate while an operator's hand is present, protecting against entanglement, pinching, or impact injuries. The ±5° effective aperture angle simplifies setup and alignment, even in dynamic production environments.

Packaging line safetyMaterial handlingAccess controlConveyor safetyEasy alignment0.1-3m operating range24VDC