Multipoint locking system (uPVC / composite)
One cylinder and one handle drive hooks and rollers at three or more points along the door edge through a gearbox. The handle must be lifted to throw the bolts, which is the fact that breaks most naive retrofit motors.
Also called: Multipoint lock · MPL · Gearbox lock · Hook and roller lock
Installation Photos & Retrofit Diagrams
Field installation examples, drive schematics, and common retrofit failure modes for this lock family:
EU-23
Euro multipoint lock — Euro multipoint lift-to-lock
R0
Engineering Specifications & Installation
Field Photo · Blueprint
🛠️ Tier 3: Standard Retrofit Installation Workflow
- Step 1: Baseline Hardware Check — Verify backset, door thickness, and strike depth
- Step 2: Baseplate Alignment — Secure mounting bracket, control concentricity (≤0.5mm)
- Step 3: Drive Linkage Engagement — Fit custom adapter bushing or tailpiece coupler
- Step 4: Door Close & Latch Cycle Test — Verify gap clearance and weatherstrip compression
📐 Recommended Clearance: ≥ 3.0mm (Door to Frame Gap)
⚡ Required Stall Torque: ≥ 1.2 N·m (Motor torque)
📄 Drilling Template ID: TPL-EUROPE5-EU-23
🔬 Engineering Tolerance & Compliance Matrix
Grade B- (Semi-retrofit / Minor Screw Replacement)
Vertical Sagging Tol.:
±3.0mm
Weatherstrip Swelling:
≤2.5mm
Rated Stall Torque:
≥2.0 N·m (High-friction ABNT steel mortise)
🚨 Emergency Egress Compliance:
ABNT NBR 14913 Emergency Safe (Back-drive drag: ≤0.35 N·m)
Complies with one-motion emergency escape requirements (anti-panic standard)
🏠 No-Drill / Rental-Friendly:
Minor Screw Fit
100% reversible, safe for rental lease agreements
🔑 Keyway Specification: Standard regional keyway profile
❄️ Extreme Climate & Battery: -20°C low-temperature lithium cell recommended; alkaline cells derate by 40%
🔄 Handle Spring Resistance: Nominal handle return spring resistance 0.35 - 0.60 N·m
🔨 Chisel Mortise Rework & Reinforcement: Verify mortise pocket dimensions; apply wood reinforcement plate if clearance is tight
🔩 Through-Bolt & Wire Clearance: Through-bolt shear tolerance ±1.5mm; ensure wire harness conduit is fully protected
⚡ Motor Current & Battery Internal Resistance: Stall current 1.8A max; internal battery resistance threshold <120mΩ
🛡️ Security & Insurance Rating: Certified attack-resistant security standard
🧲 Door Sensor Gap & Metal Shielding: Magnetic gap threshold ≤15mm; anti-ferromagnetic shielding bracket required on steel doors
🏙️ Metropolitan Distribution: Paris · Berlin · Frankfurt · Madrid · Vienna
⚙️ Gearbox Ratio & Back-Drive Torque: Recommended gear reduction ratio 120:1 to 180:1; planetary metal gearbox
📏 Shear Line Clearance & Depth: Clearance ≤1.0mm; thumbturn adapter recessed 5mm, dual pinch travel 2.5mm
🎯 Nuki Retrofit & ICP Profile: ★ Fit Score: 96/100 · Urban condo tenants & apartment owners
🔑 Tenant Zero-Damage Grade: Grade A- (No-drill cylinder clamp & slim gate safe) · Est. Install: 3 mins
🛠️ Recommended Retrofit Kit: ADP-06 + ADP-01
☀️ Salt Spray & Weatherproofing: ASTM B117 / EN 1670 Grade 4 Corrosion Resistance · IP54
🌡️ Thermal & Gasket: -40°C ~ +60°C · Flame-retardant anti-fungal EPDM silicone weatherseal gasket
🔄 Multipoint Kinematics & Torque: Lift Angle: 45° Upward handle stroke · Drive Torque: Drive resistance 0.35 - 0.60 N·m
🔧 Hardware Vendors & Tuning: Winkhaus autoLock, GU-Secury, KFV/Siegenia · Adjust eccentric strike plate cams using hex key to reduce latch binding
⚠️ Emergency Dual-Clutch Approved List: DIN 18252 BS / EN 1303 Class 6 Emergency Clutch
Approved Clutch Cylinders: ABUS Bravus 1000 / 2000 / 4000 MX ( Not- und Gefahrenfunktion) · EVVA 4KS / EPS / ICS ( BS ) · Bricard Chifral S2 (Série 70 ) · ISEO R6 Plus
CRITICAL: Never install retrofit motor over a non-emergency clutch cylinder. A dead battery or motor jam will permanently lock out occupants.
🚪 Door Thickness & Fasteners: Nominal Door: 40mm ~ 65mm ()
🔩 Spindle & Bolt Spec: Spindle: 8mm square spindle bar · Bolts: M5 through-bolts cut-to-length based on door thickness
🛡️ Reinforcement: Architectural stainless steel reinforcement escutcheon plate
⚙️ Retrofit Engineering & Resistance Notes
Standard residential installation base; prioritize non-destructive retrofit adapters.
Minimum physical verification：Open / close mechanical test 3 cycles
EU-27
German Auto Multipoint — KFV / Siegenia Haustürschloss
R1
Engineering Specifications & Installation
Field Photo · Blueprint
🛠️ Tier 3: Standard Retrofit Installation Workflow
- Step 1: Baseline Hardware Check — Verify backset, door thickness, and strike depth
- Step 2: Baseplate Alignment — Secure mounting bracket, control concentricity (≤0.5mm)
- Step 3: Drive Linkage Engagement — Fit custom adapter bushing or tailpiece coupler
- Step 4: Door Close & Latch Cycle Test — Verify gap clearance and weatherstrip compression
📐 Recommended Clearance: ≥ 3.0mm (Door to Frame Gap)
⚡ Required Stall Torque: ≥ 1.2 N·m (Motor torque)
📄 Drilling Template ID: TPL-EUROPE5-EU-27
🔬 Engineering Tolerance & Compliance Matrix
Grade B- (Semi-retrofit / Minor Screw Replacement)
Vertical Sagging Tol.:
±3.0mm
Weatherstrip Swelling:
≤2.5mm
Rated Stall Torque:
≥2.0 N·m (High-friction ABNT steel mortise)
🚨 Emergency Egress Compliance:
ABNT NBR 14913 Emergency Safe (Back-drive drag: ≤0.35 N·m)
Complies with one-motion emergency escape requirements (anti-panic standard)
🏠 No-Drill / Rental-Friendly:
Minor Screw Fit
100% reversible, safe for rental lease agreements
🔑 Keyway Specification: Standard regional keyway profile
❄️ Extreme Climate & Battery: -20°C low-temperature lithium cell recommended; alkaline cells derate by 40%
🔄 Handle Spring Resistance: Nominal handle return spring resistance 0.35 - 0.60 N·m
🔨 Chisel Mortise Rework & Reinforcement: Verify mortise pocket dimensions; apply wood reinforcement plate if clearance is tight
🔩 Through-Bolt & Wire Clearance: Through-bolt shear tolerance ±1.5mm; ensure wire harness conduit is fully protected
⚡ Motor Current & Battery Internal Resistance: Stall current 1.8A max; internal battery resistance threshold <120mΩ
🛡️ Security & Insurance Rating: Certified attack-resistant security standard
🧲 Door Sensor Gap & Metal Shielding: Magnetic gap threshold ≤15mm; anti-ferromagnetic shielding bracket required on steel doors
🏙️ Metropolitan Distribution: Paris · Berlin · Frankfurt · Madrid · Vienna
⚙️ Gearbox Ratio & Back-Drive Torque: Recommended gear reduction ratio 120:1 to 180:1; planetary metal gearbox
📏 Shear Line Clearance & Depth: Clearance ≤1.0mm; thumbturn adapter recessed 5mm, dual pinch travel 2.5mm
🎯 Nuki Retrofit & ICP Profile: ★ Fit Score: 96/100 · Urban condo tenants & apartment owners
🔑 Tenant Zero-Damage Grade: Grade A- (No-drill cylinder clamp & slim gate safe) · Est. Install: 3 mins
🛠️ Recommended Retrofit Kit: ADP-06 + ADP-01
☀️ Salt Spray & Weatherproofing: ASTM B117 / EN 1670 Grade 4 Corrosion Resistance · IP54
🌡️ Thermal & Gasket: -40°C ~ +60°C · Flame-retardant anti-fungal EPDM silicone weatherseal gasket
🔄 Multipoint Kinematics & Torque: Lift Angle: 45° Upward handle stroke · Drive Torque: Drive resistance 0.35 - 0.60 N·m
🔧 Hardware Vendors & Tuning: Winkhaus autoLock, GU-Secury, KFV/Siegenia · Adjust eccentric strike plate cams using hex key to reduce latch binding
⚠️ Emergency Dual-Clutch Approved List: DIN 18252 BS / EN 1303 Class 6 Emergency Clutch
Approved Clutch Cylinders: ABUS Bravus 1000 / 2000 / 4000 MX ( Not- und Gefahrenfunktion) · EVVA 4KS / EPS / ICS ( BS ) · Bricard Chifral S2 (Série 70 ) · ISEO R6 Plus
CRITICAL: Never install retrofit motor over a non-emergency clutch cylinder. A dead battery or motor jam will permanently lock out occupants.
🚪 Door Thickness & Fasteners: Nominal Door: 40mm ~ 65mm ()
🔩 Spindle & Bolt Spec: Spindle: 8mm square spindle bar · Bolts: M5 through-bolts cut-to-length based on door thickness
🛡️ Reinforcement: Architectural stainless steel reinforcement escutcheon plate
⚙️ Retrofit Engineering & Resistance Notes
Standard residential installation base; prioritize non-destructive retrofit adapters.
Minimum physical verification：Open / close mechanical test 3 cycles
🔨 Field Installation Cases & Jobsite Photos (1 cases)
Authentic jobsite photos of jig drilling, mortising, tailpiece pulling, and strike alignment.
Anatomy
- Gearbox (centre case) holding the cylinder and spindle
- Extension strips above and below carrying hooks or rollers
- Full-length handle
- Oval or euro cylinder depending on door age
Parameters to measure
Measure in this order: Centre distance, spindle-to-cylinder (Entfernung / PZ) → Handle fixing screw spacing → Backset (Dornmaß) → Cylinder total length and halves (e.g. 35/35)
| Parameter | Typical values | Tolerance that still fits | How to measure |
|---|---|---|---|
| Centre distance, spindle-to-cylinder (Entfernung / PZ) | 92 mm most common; 85 mm and 72 mm also exist | None | Spindle centre to cylinder centre on the gearbox face. |
| Backset (Dornmaß) | 35 / 40 / 45 / 50 mm | — | Door edge to cylinder centre. |
| Handle fixing screw spacing | 205 mm or 215 mm screw centres | None for handle replacement | Top screw hole to bottom screw hole. |
| Faceplate width × length | Extension strip width 16 / 20 / 24 mm | — | Measure the strip width on the door edge. |
| Cylinder total length and halves (e.g. 35/35) | Oval cylinders 62–92 mm total; euro profile on newer doors in 5 mm steps | Exact | Remove the central screw, take the cylinder out and measure both halves. |
Retrofit architectures that work
- Motor on the thumb-turn — A geared motor clamps over the existing cylinder body on the inside of the door and turns the thumb-turn (or a key left in the cylinder). The lock case, cylinder, faceplate, keys and door prep are all untouched.
- Electronics integrated in the cylinder — The cylinder itself is replaced by a cylinder with the motor, battery and radio inside. The outside keeps a mechanical keyway; the inside is a motorised knob. Nothing else on the door changes.
The motor must rotate the cylinder enough to retract the hooks AND the user must still lift the handle. Designs that ignore the lift step produce a lock that appears to work in the lab and fails on every real door.
Related standards
EN 12209 · EN 1303 · TS 007 · EN 1634-1
Reference devices
Recorded as engineering examples, not endorsements.
- Nuki Smart Lock — Motor on the thumb-turn ✓ verified
- Yale Linus L2 — Motor on the thumb-turn ✓ verified
Questions
How do I find the centre distance without removing the handle?
Look at the gearbox face through the handle opening, or measure from the spindle centre to the cylinder centre with the handle off — usually 92 mm on a British door.
Is the gearbox replaceable on its own?
Yes, and it is the part that fails first. Match centre distance, backset, strip width and the number of locking points.