Electromagnetic Locks
Proven Fail-Safe Locking from 60 kg to 500 kg Holding Force
Over 40 model variants from our ISO-certified manufacturing partner. No moving parts, instant release, and fail-safe by design. Surface-mount, recessed, concealed, single-door and double-door configurations. Explosion-proof models (Ex ib IIC T6 Gb, IP66) for hazardous environments.
- 60 kg to 500 kg holding force (5 series: DZM01/DZ02/DZ03/DZ04/DZ05)
- LED status indicator (red = locked, green = unlocked)
- Signal feedback output (dry contact) for access control integration
- Adjustable timer delay (0–15 seconds, X-type models)
- Anti-residual magnetism for instant release on power cut
- Explosion-proof models — Ex ib IIC T6 Gb · IP66 · Zone 1 & 2
- Operating temperature: -40°C to +70°C
Product Range
Complete Model Specifications
Model naming: DZ = Electromagnetic Lock · 02=150kg, 03=280kg, 04=350kg, 05=500kg · G=Surface mount, Q=Recessed · C=LED indicator, X=LED + timer + feedback, Y=LED + feedback · S=Double door
| Model | DZM01G | DZ02G DZ02Q |
DZ03GC DZ03QC |
DZ03GX DZ03QX |
DZ03GY DZ03QY |
DZ04GC DZ04QC |
DZ04GX DZ04QX |
DZ04GY DZ04QY |
DZ05GC DZ05QC |
DZ05GX DZ05QX |
DZ05GY DZ05QY |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Voltage | DC12V | DC12V | DC12V | DC12–24V | DC12V | DC12V | DC12V | DC12V | DC12V | DC12–24V | DC12V |
| Current | 120mA | 300mA | 300mA | 300mA | 300mA | 300mA | 300mA | 300mA | 300mA | 300mA | 300mA |
| Power | 1.5W | 3.6W | 3.6W | 3.6W | 3.6W | 3.6W | 3.6W | 3.6W | 3.6W | 3.6W | 3.6W |
| Holding Force | 60kg | 150kg | 280kg | 280kg | 280kg | 350kg | 350kg | 350kg | 500kg | 500kg | 500kg |
| Signal Feedback | — | — | — | Yes | Yes | — | Yes | Yes | — | Yes | Yes |
| Timer Delay | — | — | — | Yes | — | — | Yes | — | — | Yes | — |
Note: Double-door (S) models have the same electrical specs as single-door models (except voltage). Physical dimensions are doubled.
Standard Models
DZ03 — 280 kg
DC12V · 280mA · 3.6W
Body: 241 × 52 × 28 mm
LED + Signal Feedback
Mounting Variants
Concealed Mount (C-Type)
DZ03GC · 280kg
Body: 281 × 47 × 26.5 mm
Armature: 158 × 45 × 13 mm
Clean concealed appearance for premium interiors
Recessed Mount (X-Type)
Timer + LED + Signal Feedback
Flush-mount into door frame
Available in all force ratings
Double Door (S-Type)
DZ03GYS · 280kg × 2
Same electrical specs as single-door
Doubled physical dimensions
Explosion-Proof Models (Ex ib IIC T6 Gb · IP66)
| Model | DZ02FG DZ02FQ | DZ02FGS DZ02FQS | DZ03FG DZ03FQ | DZ03FGS DZ03FQS | DZ04FG DZ04FQ | DZ04FGS DZ04FQS | DZ05FG DZ05FQS | DZ05FGS DZ05FQS |
|---|---|---|---|---|---|---|---|---|
| Voltage | DC12V | DC12V | DC12V | DC12V | DC12V | DC12V | DC12V | DC12V |
| Current | 300mA | 600mA | 300mA | 600mA | 300mA | 600mA | 300mA | 600mA |
| Power | 3.6W | 7.2W | 3.6W | 7.2W | 3.6W | 7.2W | 3.6W | 7.2W |
| Holding Force | 150kg | 150kg×2 | 280kg | 280kg×2 | 350kg | 350kg×2 | 500kg | 500kg×2 |
Explosion-proof marking: Ex ib IIC T6 Gb · Protection class: IP66 · Operating temperature: -20°C to +40°C · Suitable for Zone 1 & Zone 2 hazardous areas (IIA, IIB, IIC gas groups, T1–T6 temperature classes).
Applications: Petrochemical plants, oil rigs, gas stations, steel mills, pharmaceutical plants, military installations.
Key Features
LED Status Indicator
Red = locked, Green = unlocked. Visible from a distance for quick security patrols and system verification.
Signal Feedback Output
Dry contact reports lock status. Confirms armature seating, triggers alarms for held-open or forced doors.
Adjustable Timer Delay
0-15 seconds configurable hold-open time. Eliminates external timer relays and reduces wiring complexity.
Anti-Residual Magnetism
Precision-engineered core ensures door releases immediately when power is cut. Critical for emergency egress compliance.
Fail-Safe Operation
Power on = locked, Power off = unlocked. Automatically releases during power failure or fire alarm activation.
Explosion-Proof Models
Flame-proof enclosure (Ex d), sealed cable glands, corrosion-resistant housing. Zone 1 and Zone 2 certified.
Detailed Specifications by Model
DZM01G — 60 kg Surface-Mount
| Holding Force | 60 kg |
|---|---|
| Operating Voltage | DC 12V |
| Current Draw | ≤120 mA |
| Body Dimensions | 80 × 37 × 25.5 mm |
| Armature Plate | 70 × 31 × 11 mm |
| Features | Built-in surge absorber |
DZ02 Series — 150 kg
| Holding Force | 150 kg |
|---|---|
| Operating Voltage | DC 12V (GX: DC 12–24V) |
| Current Draw | ≤260 mA |
| Body (Surface G) | 165.8 × 40 × 23.5 mm |
| Body (Recessed Q) | 200.8 × 35 × 23.5 mm |
| Armature Plate | 135 × 31 × 11 mm |
| Operating Temperature | -40°C to +70°C |
Available variants:
- DZ02G / DZ02Q — Basic (no feedback)
- DZ02GS / DZ02QS — Basic double-door
- DZ02GX / DZ02QX — LED + Timer + Signal feedback
DZ03 Series — 280 kg (Most Popular)
| Holding Force | 280 kg (600 lbs) |
|---|---|
| Operating Voltage | DC 12V (GX: DC 12–24V) |
| Current Draw | ≤280 mA |
| Body (Surface GY) | 241 × 52 × 28 mm |
| Body (Concealed GC) | 281 × 47 × 26.5 mm |
| Body (Recessed GX) | 241 × 52 × 28 mm |
| Armature Plate | 158 × 45 × 13 mm |
| LED Indicator | Yes (C/X/Y models) |
| Signal Feedback | Yes (X/Y models) — Dry contact |
| Timer Delay | Yes (X models) — Adjustable |
| Anti-Residual Magnetism | Yes |
Available variants:
- DZ03GC / DZ03QC — LED indicator only
- DZ03GX / DZ03QX — LED + Timer + Signal feedback
- DZ03GY / DZ03QY — LED + Signal feedback
- DZ03GCS / DZ03GYS / DZ03GXS — Double-door versions
Voltage tolerance: ±10% operating range
DZ04 Series — 350 kg
| Holding Force | 350 kg (750 lbs) |
|---|---|
| Operating Voltage | DC 12V |
| Current Draw | ≤290 mA |
| Body (Surface GCS) | 271 × 52 × 26.5 mm |
| Body (Recessed QC) | 311 × 47 × 26.5 mm |
| Armature Plate | 180 × 45 × 13 mm |
| Variants | GC/GX/GY/QC/QX/QY + double-door S versions |
DZ05 Series — 500 kg
| Holding Force | 500 kg (1100 lbs) |
|---|---|
| Operating Voltage | DC 12V (GX: DC 12–24V) |
| Current Draw | ≤300 mA |
| Body (Surface GXS) | 264 × 70 × 38.5 mm |
| Body (Recessed QXS) | 314 × 65 × 36.8 mm |
| Armature Plate | 175 × 62 × 13 mm |
| Features | LED + Timer + Signal feedback (X models) |
| Quality System | ISO 9001:2015 · ISO 14001:2015 · ISO 45001:2018 |
Mounting Options
Surface Mount (Standard)
Lock body on frame, armature on door. Most common installation for commercial and institutional doors.
Shear Lock (Flush Mount)
Recessed into frame and door leaf. Clean, concealed appearance for architectural glass doors and premium interiors.
Z-Bracket & L-Bracket
For inward/outward-opening doors, deep recesses, and non-standard frame profiles. Full bracket kits available.
Brackets & Accessories
| Accessory | Compatible Models | Door Type | Notes |
|---|---|---|---|
| U-Bracket (Glass Door Clamp) | 150kg, 280kg maglocks | Frameless glass doors | Glass thickness: 8–15 mm |
| L & Z Bracket | 150kg, 280kg, 350kg, 500kg | Inward/outward-opening doors | Weight: 0.4–1.4 kg depending on maglock size |
Control Boxes
KZH1A / KZH1B — Keypad Control Box
DC 12–24V · ≤470mA · Password delay: 2, 4, 6, 9 sec · Lock status feedback · Optional IC card reader · For wooden, metal, and fire-rated doors
KZH2 — Compact Control Box
DC 12–24V · ≤500mA · Password delay: 2, 4, 6, 9 sec · Lock status feedback · IC card dedicated · Weight: 0.5 kg · 24 pcs/carton
KZH3 — Embedded Control Box
DC 12V · ≤470mA · Adjustable delay: 5–15 sec · Signal feedback · For access control systems · Push-button & key operation
Applications
Glass Door Installations
Compact 180 kg model suits frameless and framed glass doors. Specialized U-brackets accommodate various glass thicknesses.
Commercial Buildings
280 kg maglocks for office entrances and corridor doors. Signal feedback integration provides real-time monitoring.
Fire Exit Doors
500 kg model with automatic release upon fire alarm activation. Anti-residual magnetism guarantees immediate door opening.
Industrial & Hazardous
Explosion-proof models for petrochemical plants, LNG facilities, and chemical storage. Heavy-duty 500 kg for perimeter gates.
Server Rooms & Data Centers
Signal feedback for monitoring. Timer delay prevents doors remaining unlocked after authorized entry.
Frequently Asked Questions
Electromagnetic locks are fail-safe — they unlock when power is removed. Suitable for emergency exits and fire-rated doors. For fail-secure (locked when power is removed), consider our electric bolt locks.
180 kg for lightweight interior doors, 280 kg for standard commercial doors, 350 kg for heavy doors, and 500 kg for high-security applications. When in doubt, choose the next size up.
Yes. The 180 kg and 280 kg models work on frameless and framed glass doors using specialized U-brackets and glass-door mounting kits.
Yes. Maglocks are passive devices controlled by cutting power. Any access controller, timer, or switch that interrupts 12V/24V DC can operate these locks. No proprietary protocols involved.
No moving parts means minimal maintenance. Periodic cleaning of armature plate contact surface and checking mounting hardware and wiring connections annually is recommended.
Ready to Order?
Tell us the holding force, mounting type, quantity, and whether you need standard or explosion-proof. We respond within 24 hours.