Fermax Electric Strike 540Aa Max

Fermax 1780 Electric Strike 540Aa Max (12Vac Auto Fail Secure + Override)

The Fermax 1780 is the Body component of an Electric Lock Release designed for 12V AC systems, featuring automatic re-Locking, Fail-Secure operation, a manual override Lever, and an Adjustable Latch. The designation 540Aa MAX signifies: 540 Standard Body series, Aa operation (Automatic Fail Secure AC with Manual Override), and MAX Adjustable Latch. A separate shield/Faceplate is needed to complete the assembly.

Key characteristics: The 540 Standard Body size fits typical frame preparations. The Aa operation offers enhanced functionality: it is Fail Secure (Locked without power), unLocks on a 12V AC pulse, automatically re-Locks mechanically after the Door cycles open/closed, and includes a manual override Lever (a) allowing the Strike to be temporarily set to an Unlocked state for free passage. The MAX Adjustable jaw (±4mm) aids installation by allowing precise alignment with the Door Latch.

This Strike Body is ideal for 12V AC Fermax systems where the combination of automatic re-Locking security, Fail-Secure reliability, and the convenience of a manual override is required. The Adjustable Latch further simplifies installation. Choose this Body and pair it with a compatible Fermax shield (e.g., S-type) for a versatile AC Lock Release solution.

Features

• Standard Duty Electric Lock Release Body
• Model Type: 540Aa MAX
• Operation: Aa - Automatic Fail Secure AC with Manual Override Lever
• Voltage: 12V AC
• Latch: MAX Adjustable Jaw (+/- 4mm adjustment)
• Includes Manual Override Lever (pestillo) capability
• Automatic re-Locking function after Door cycle
• Fail Secure operation (Locked on power Failure)
• Reversible design (Left/Right DIN)
• Symmetrical Body
• Suitable for Standard timber and metal frames
• Requires separate compatible shield/Faceplate

Technical Specifications

• Manufacturer: Fermax
• Model Reference: 1780 (Body Type 540Aa MAX)
• Operation Mode: Automatic Fail Secure AC with Manual Override
• Input Voltage: 12V AC
• Body Series: 540 (Standard)
• Latch: MAX Adjustable

Dimensions

• Body Dimensions (540 approx): 75mm x 21mm (height x width) - depth varies.