Barrier

Product details



Switch amplifier - 12.5mm

This isolated barrier is used for intrinsic safety applications. It transfers digital signals (NAMUR sensors/mechanical contacts) from a hazardous area to a safe area.

The proximity sensor or switch controls a form A normally open relay contact for the safe area load. The normal output state can be reversed using switches S1 and S2. Switch S3 is used to enable or disable line fault detection of the field circuit.

During an error condition, relays revert to their de-energized state and LEDs indicate the fault according to NAMUR NE44.

A unique collective error messaging feature is available when used with the Power Rail system.

Due to its compact housing design and low heat dissipation, this device is useful for detecting positions, end stops, and switching states in space-critical applications.

Technical specification
Supply voltage:	19-30V d.c.
Power consumption:	≤600mW
No. of channels:	2
Input/output:	Digital input
Output:
Miniumum switch current:	2mA/24V d.c.
Energized/de-energized delay:	≤20ms/≤20ms
Mechanical life:	10⁷ switching cycles
Output I:	Signal, relay
Output II:	Signal, relay
Input:
Rated values:	acc. to EN 60947-5-6 (NAMUR)
Open circuit voltage:	Approx. 10V d.c.
Short circuit voltage:	Approx. 8mA
Switching point:	1.2-2.1mA
Switching hysteresis:	Approx. 0.2mA
Line fault detection:	Breakage I ≤0.1mA
	Short-circuit I ≥6.5mA
Pulse/pause ratio:	≥20ms/≥20ms
Ambient temperature:	-20 to +60°C
Protection rating:	IP20
Mounting:	35mm DIN rail or panel mount
Dimensions:	w12.5 x h114 x d119mm

Features:

12.5mm slimline housing

3 port galvanic isolation

2-channel isolated barrier

24V d.c. supply (power rail)

Dry contact or NAMUR inputs

Relay contact output

Line fault detection (LFD)

Up to SIL2 acc. to IEC 61508

DIN rail/power rail solutions

Removable terminals reduce maintenance time

Fault detection and local indication