Durable electric strike for day locking in perimeter protection and internal locking
STEP 40 Preload is adapted for doors with normal security requirements, but high demands on operational reliability. It is an electric strike with small dimensions that can withstand heavy loads and frequent use. No matter what challenges await in real-world conditions, you can trust it to perform.
Areas of application include perimeter day locking as well as internal locking in offices, retail spaces, hospitals, industrial facilities, entrances, and shared areas in multi-residential buildings.
Unmatched functionality and operational reliability
STEP 40 Preload is Scandinavia’s most popular electric strike. With experience from hundreds of thousands of units sold, it's optimized with patented HPR® technology that truly maximizes performance:
- Handles up to 250 kg preload pressure
- 1 200 kg breaking strength
- Built-in weather protection
- Built-in protection against tampering and external force
- Factory tested to 1 500 000 cycles
The result speaks for itself: unmatched functionality and operational reliability.
250 kg with patented STEP Preload technology
Modern door environments place high demands on sound insulation and indoor climate. This requires tightly sealed doors, which in turn results in high preload pressure.
Several factors can further increase the strain on the lock, such as unsynchronized door automation, snow or gravel on the threshold, or a slightly warped door.
STEP Preload Technology ensures that STEP 40 Preload can unlock even under preload pressures of up to 250 kg. This patented technology withstands comparison and sets the standard for the entire industry.
High flexibility and easy installation
STEP 40 Preload is available in fail-secure, fail-safe, or adjustable function. The adjustable version makes it easy to change the function on site, which simplifies inventory and reduces installation costs. The strike is reversible and fits both left- and right-handed doors. Available with or without bolt contact.
Wide range of faceplates
With around 600 different variants, we offer a wide range of faceplates. In our Faceplate guide, you can easily filter out the right faceplate for your door environment. All are made of stainless steel and give a stylish impression.
Swedish premium quality
All our products are developed and manufactured by us in Sweden. Maximum functionality and operational reliability are features we never compromise on. By choosing STEP, you not only support Swedish technology and industry – you also choose premium-quality products that ensure long-term reliability.
Electric strike STEP 40 Preload
Scandinavia’s most popular electric strike
STEP 40 Preload is Scandinavia’s most popular electric strike. It’s designed for door environments with standard security requirements but high demands on operational reliability. With Swedish premium quality, flexible installation options, and STEP Preload Technology, it handles high-frequency use and up to 250 kg of preload pressure. This is a long-lasting electric strike built to perform, day after day.
Scandinavia's most popular electric strike. Highest operational reliability with premium quality. Can handle 250 kg preload pressure.
Functional description
- STEP 40 Preload is reversible to fit right- and left hung doors.
- ST40 Fail secure function. The rotating cam is electrically activated via access control system, code lock or similar, and becomes unlocked.
- ST400 Fail secure function and bolt contact. The rotating cam is electrically activated via access control system, code lock or similar, and becomes unlocked. The access control system detects, due to the bolt contact whether the door is closed or open.
- ST41 Fail safe function. The rotating cam is electrically activated via access control system, code lock or similar, and becomes locked.
- ST401 Fail safe function and bolt contact. The rotating cam is electrically activated via access control system, code lock or similar, and becomes locked. The access control system detects, due to the bolt contact whether the door is closed or open.
- ST45 Adjustable function. The rotating cam is electrically activated via access control system, code lock or similar, and becomes locked or unlocked, depending on the setting of the strike plate.
- ST405 Adjustable function and bolt contact. The rotating cam is electrically activated via access control system, code lock or similar, and becomes locked or unlocked, depending on the setting of the strike plate. The access control system detects, due to the bolt contact whether the door is closed or open.
Certificates
- Durability: Grade X per EN 14846.
- Corrosion: Grade M per EN 14846.
- Security: Grade 3 per EN 14846.
- Security electrical manipulation: Grade 1 per EN 14846.
Technical data
- Microswitch unipolar changeover, max. 30 V DC, 1A.
- Built-in protective diode.
- Break resistance 12 kN (≈ 1200 kg).
- Ensures opening despite preload up to 2,5 kN (≈ 250 kg) in fail secure and fail safe function.
- Anti-hammer secured.
- Screw holes for angled screws at rear edge of electric strike.
24 V DC: 85 mAh.
12 V DC: 170 mAh.
Power consumption 0 mA for rotating cam at rest (fail secure = locked, fail safe = unlocked)
For the dimensioning of the power supply, see the installation manual.
Faceplates
In the Faceplate guide, we've gathered our full range of faceplates. Use the search or filters to find the product best suited for your door environment.
Substitute products
E12 - STEP E12 Emergency lock case
Mechanical emergency lock case with lever handle latch bolt
STEP E12 is a mechanical emergency lock case you can truly rely on. With the same high standards for quality, feel and finish, it is now possible to give the entire door environment a consistent level of quality, as the mechanical lock in the door can maintain exactly the same high level as the electric strike plate in the frame. Certified acc. to EN 179.
E22 - STEP E22 Emergency lock case
Mechanical emergency lock case with double latch bolts
STEP E22 is a mechanical emergency lock case you can truly rely on. With the same high standards for quality, feel and finish, it is now possible to give the entire door environment a consistent level of quality, as the mechanical lock in the door can maintain exactly the same high level as the electric strike plate in the frame. Certified acc. to EN 179.
SE22 - STEP SE22 Emergency lock case
Mechanical emergency lock case with double latch bolts and split function
STEP SE22 is a mechanical emergency lock case you can truly rely on. With the same high standards for quality, feel and finish, it is now possible to give the entire door environment a consistent level of quality, as the mechanical lock in the door can maintain exactly the same high level as the electric strike plate in the frame. Certified acc. to EN 179.
E27 - STEP E27 Emergency lock case
Mechanical emergency lock case with double latch bolts and re-entry function
STEP E27 is a mechanical emergency lock case you can truly rely on. With the same high standards for quality, feel and finish, it is now possible to give the entire door environment a consistent level of quality, as the mechanical lock in the door can maintain exactly the same high level as the electric strike plate in the frame. Certified acc. to EN 179.
SE27 - STEP SE27 Emergency lock case
Mechanical emergency lock case with double latch bolts, split function and re-entry function STEP SE27 is a mechanical emergency lock case you can truly rely on. With the same high standards for quality, feel and finish, it is now possible to give the entire door environment a consistent level of quality, as the mechanical lock in the door can maintain exactly the same high level as the electric strike plate in the frame. Certified acc. to EN 179.
E32 - STEP E32 Emergency lock case
Mechanical emergency lock case with interlocked cylinder latch bolt STEP E32 is a mechanical emergency lock case you can truly rely on. With the same high standards for quality, feel and finish, it is now possible to give the entire door environment a consistent level of quality, as the mechanical lock in the door can maintain exactly the same high level as the electric strike plate in the frame. Certified acc. to EN 179.
SE36 - STEP SE36 Emergency lock case
Mechanical emergency lock case with cylinder latch bolt and split function STEP SE36 is a mechanical emergency lock case you can truly rely on. With the same high standards for quality, feel and finish, it is now possible to give the entire door environment a consistent level of quality, as the mechanical lock in the door can maintain exactly the same high level as the electric strike plate in the frame. Certified acc. to EN 179.
E37 - STEP E37 Emergency lock case
Mechanical emergency lock case with interlocked cylinder latch bolt with re-entry function STEP E37 is a mechanical emergency lock case you can truly rely on. With the same high standards for quality, feel and finish, it is now possible to give the entire door environment a consistent level of quality, as the mechanical lock in the door can maintain exactly the same high level as the electric strike plate in the frame. Certified acc. to EN 179.
SE37 - STEP SE37 Emergency lock case
Mechanical emergency lock case with interlocked cylinder latch bolt, split function and re-entry function STEP SE37 is a mechanical emergency lock case you can truly rely on. With the same high standards for quality, feel and finish, it is now possible to give the entire door environment a consistent level of quality, as the mechanical lock in the door can maintain exactly the same high level as the electric strike plate in the frame. Certified acc. to EN 179.
M12 - STEP M12 Mechanical lock case
Mechanical lock case with double latch locks STEP M22 is a mechanical lock case you can truly rely on. With the same high standards for quality, feel and finish, it is now possible to give the entire door environment a consistent level of quality, as the mechanical lock in the door can maintain exactly the same high level as the electric strike plate in the frame.
M22 - STEP M22 Mechanical lock case
Mechanical lock case with double latch locks STEP M22 is a mechanical lock case you can truly rely on. With the same high standards for quality, feel and finish, it is now possible to give the entire door environment a consistent level of quality, as the mechanical lock in the door can maintain exactly the same high level as the electric strike plate in the frame.
SM22 - STEP SM22 Mechanical lock case
Mechanical lock case with double latch locks and split function STEP SM22 is a mechanical lock case you can truly rely on. With the same high standards for quality, feel and finish, it is now possible to give the entire door environment a consistent level of quality, as the mechanical lock in the door can maintain exactly the same high level as the electric strike plate in the frame.
M33 - STEP M33 Mechanical lock case
Mechanical lock case with cylinder latch bolt STEP M33 is a mechanical lock case you can truly rely on. With the same high standards for quality, feel and finish, it is now possible to give the entire door environment a consistent level of quality, as the mechanical lock in the door can maintain exactly the same high level as the electric strike plate in the frame.
M36 - STEP M36 Mechanical lock case
Mechanical lock case with interlocked cylinder latch bolt STEP M36 is a mechanical lock case you can truly rely on. With the same high standards for quality, feel and finish, it is now possible to give the entire door environment a consistent level of quality, as the mechanical lock in the door can maintain exactly the same high level as the electric strike plate in the frame.
SM36 - STEP SM36 Mechanical lock case
Mechanical lock case with interlocked cylinder latch bolt and split function STEP SM36 is a mechanical lock case you can truly rely on. With the same high standards for quality, feel and finish, it is now possible to give the entire door environment a consistent level of quality, as the mechanical lock in the door can maintain exactly the same high level as the electric strike plate in the frame.
