User Manual for Finder 11 Series 11.31 Light-Sensitive Relay

Quick guide from the manual

The Finder 11.31 is a light-sensitive relay designed for automatic lighting control based on ambient light levels. It features a 16A contact rating, 17.5mm width, and is designed for 35mm DIN rail mounting. This device is suitable for applications such as external lighting control, cockpit control panels, and internal lighting management.

Product Description

The 11.31 series relay includes a separate light sensor. Key features include:

• Adjustable sensitivity range: 1 to 100 lux.
• Low power consumption.
• LED status indication.
• SELV isolation between contacts and power circuit.
• Double insulation between power supply and light sensor.
• Time delay: 1s ON, 6s OFF to prevent flickering.
• Cadmium-free contacts and sensor.

Technical Specifications

Contact Specifications

• Configuration: 1 NO (SPST-NO)
• Rated current/Maximum peak current: 16/30 A
• Rated voltage/Maximum switching voltage: 250/400 V AC
• Rated load AC1: 4000 VA
• Rated load AC15 (230 V AC): 750 VA
• Minimum switching load: 1000 mW (10/10 mA)

Power Supply Specifications

• Nominal voltage (UN): 12...24 V AC (50/60 Hz) / DC
• Operating range: 10.2...28.8 V AC / 10.2...32 V DC
• Rated power: 2.5 VA / 0.9 W

Environmental & Protection

• Ambient temperature range: -25 to +55°C
• Protection rating: IP20 (relay) / IP54 (sensor)

Installation and Wiring

The device is designed for 35mm rail (EN 60715) mounting. Ensure the wiring follows the provided diagram, connecting the L/+ and N/- power lines to the relay and the light sensor to terminals B1 and B2.

Wiring Requirements

• Maximum wire size (solid): 1 x 6 / 2 x 4 mm²
• Maximum wire size (stranded): 1 x 4 / 2 x 2.5 mm²
• Stripping length: 9 mm
• Maximum cable length from relay to sensor: 50 m (2 x 1.5 mm²)

LED Status

The LED provides visual feedback on the relay state:

• LED OFF: Power OFF, Output Contact OPEN.
• LED ON (Blinking): Power ON, Output Contact OPEN.
• LED ON (Solid): Power ON, Output Contact CLOSED.

Accessories

The following accessories are compatible with the 11.31 series:

• 011.02: Standard light sensor (included).
• 011.03: Flush-mount light sensor.
• 060.48: Label tags (48 labels, 6 x 12 mm).

Note: Sensors 011.02 and 011.03 are not compatible with model 11.71.0.024.1001.