
Compact electric strike for reliable door environments
STEP 30 Preload is a compact electric strike with minimal dimensions, STEP Preload technology, and flexible installation options. It is developed to create a reliable door environment in both new and existing door frames and cutouts.
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 30 Preload can unlock even under preload pressures of up to 40 kg. This patented technology withstands comparison and sets the standard for the entire industry.
High flexibility and easy installation
STEP 30 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 30 Preload
Minimal electric strike with STEP Preload technology
STEP 30 Preload is a compact electric strike equipped with patented STEP Preload technology. Swedish premium quality, flexible installation options, and a wide range of faceplates ensure high operational reliability and easy installation.
A compact electric strike suitable for already existing cut-outs. Ensures a reliable door operation in both new and older door environments.






Functional description
- STEP 30 Preload is reversible to fit right- and left hung doors.
- ST30 Fail secure function. The rotating cam is electrically activated via access control system, code lock or similar, and becomes unlocked.
- ST300 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.
- ST31 Fail safe function. The rotating cam is electrically activated via access control system, code lock or similar, and becomes locked.
- ST301 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.
- ST35 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.
- ST305 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.
Technical data
- Microswitch unipolar changeover, max. 30 V DC, 1A.
- Built-in protective diode.
- Break resistance 6 kN (≈ 600 kg).
- Ensures opening despite preload up to 0,4 kN (≈ 40 kg) in fail secure and fail safe function.
- Anti-hammer secured.
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.



















