1/4 turn ACTELEC LEA and LEB

Product catalog summary

Overview: The document provides technical specifications and features of the ACTELEC LEA and LEB 1/4 turn electric actuators by BERNARD, designed for applications such as heating, air-conditioning, and irrigation. These actuators offer output torques up to 100 Nm and comply with ISO 5211 and CE/CFA standards.

Specifications:

Output Torque: Up to 100 Nm.
Mounting Interface: ISO 5211 standard.
Materials: LEA features a reinforced polyamide body, while LEB has an aluminum body with epoxy painting. Both have polycarbonate covers.
Environment: Operating temperature ranges from -10°C to +50°C with a protection level of IP 65.

Construction and Features:

Designed for on-off function with intermittent duty S4 - 30%.
Equipped with electric motor protection, including a torque limit system for LEA and a thermoruptor for LEB.
Includes manual emergency control, position visual indicator, and mechanical adjustable end stops.

Power Supply:

Standard Version: 1-phase 230 VAC 50 Hz - 60 Hz.

Models and Performance:

LEA-2: 25 Nm, 20 sec/90°, 35 W, 0.8 A nominal intensity.
LEA-3: 35 Nm, 20 sec/90°, 45 W, 0.6 A nominal intensity.
LEB-4: 45 Nm, 6 sec/90°, 30 W, 1.2 A nominal intensity.
LEB-10: 100 Nm, 35 sec/90°, 15 W, 0.6 A nominal intensity.

Wiring and Connections:

LEA model uses connectors for wiring, while LEB uses packing glands.
Wiring diagrams provided for both models, detailing connections for power supply and signals.

Dimensions and Weight:

LEA-2 and LEA-3: Dimensions include A=118 mm, B=65 mm, C=77 mm, D=41 mm, with a weight of 1.6 kg.
LEB-4 and LEB-10: Dimensions include A=148 mm, B=90 mm, C=140 mm, D=65 mm, with weights of 5.0 kg and 5.5 kg respectively.

Catalog excerpts

Type series booklet 8521.16/1-10 1/4 turn ACTELEC LEA and LEB (BERNARD)Direct 1/4 turn electric actuators ACTELEC BERNARD LEA and LEB Output torques up to 100 Nm Applications • Building services. General feature • The range series direct 1/4 turn electric actuators ACTELEC LEA and LEB covers output values up to 100 Nm. • These actuators have been designed for the following applications: heating, air -conditioning, ventilation, greenhouses, irrigations, swimming pools and for the operation of any type % turn valves. • The mounting interface is in accordance with ISO 5211 standard. • Equipped with an interchangeable insert, they can be easily fitted on different valve shaft (square end or flat end)). • The actuator is mounted directly or by means of an adaptador onto the valve mounting plate. • Irreversible kinematic in any position. • In accordance with CE/CFA standard. Construction • In standard version, ACTELEC LEA and LEB actuators are designed to ensure the on -off function, intermittent duty S4 - 30%. • Electric remote control. Equipements • Electric motor protection by: -- Torque limit system for LEA. - Thermoruptor for LEB, - 2 travel limit microswitches (1 microswitch on opening position and 1 on closing position). • Heating resistance anti -condensation (LEB). • Manual emergency control by handwheel. • Position visual indicator. • Mechanical adjustable end stop(s). • No option. Power supply • Standard version: - 1 -phase 230 VAC 50 Hz - 60 Hz. Materials • Reinforced Polyamid body: LEA • Aluminium body + epoxy painting: LEB • Polycarbonate cover: LEA and LEB Environment • Working temperature: from -10° C up to +50° C • Protection level: IP 65

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amii 1/4 turn ACTELEC LEA and LEB (BERNARD) ACTELEC LEA and LEB electric actuators are based on a direct % turn servomotor with a mounting interface in accordance with ISO 5211.

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1/4 turn ACTELEC LEA and LEB (BERNARD) On/off function: Wiring diagram for LEA model: connection by connectors Wiring diagram for LEB model: connection by packing gland Actuator wiring Customer wiring Thermal motor protection 3 Power supply Travel limit switches Closed Open / Closed signalling Open Heater resistance Power supply

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