High-Quality HS11F Double Throw Anti-Error Knife Switch Supplier, Company

The HD11F Double Throw Anti-Error Knife Switch delivers secure circuit isolation for industrial power systems, supporting 200A-1500A loads at AC380V/DC220V with 660V insulation. This double-throw anti-error switch features a dual-direction switching mechanism to prevent misoperation, alongside high short-time withstand currents (10-32kA for 1s). With 10,000-cycle mechanical endurance and low operating force (≤450N), the HD11F switch ensures reliable performance in 50Hz distribution networks. Its robust design complies with AC-20 standards, making it ideal for applications requiring fail-safe manual control and durable isolation.

Product Description

Type Designation

HS11F-1000-3P-5
No. Description
1 Isolator
2 Handle-operated type
3 Anti-Error
4 Rated operating current
5 Number of poles: 3 poles
6 8: Front-mounted wiring (or Front wiring)
9: Rear-mounted wiring (or Rear wiring)
7 0: Without auxiliary contact
1: With auxiliary contact

Structural Features

1. Blade Design & Conductivity
Single-blade (200-400A) and double-blade (600-1500A) structures with tin-plated contacts to reduce resistance and enhance electrical performance.
2. Anti-Error Operation Mechanism
Central rotating shaft design prevents misoperation, ensuring accurate blade positioning and safe handling.
3. Mechanical Interlocking Safety
Interlock devices block accidental closure under load, withstand short-circuit forces, and allow manual unlocking for emergency disconnection.
4. Auxiliary Control Integration
Compatible with L198 auxiliary switches for sequential circuit control (auxiliary contacts operate before main contacts), enabling integration with breaker or motor control systems.

Product Display

HS11 Protective Knife Switch Outline and Installation Dimensions

The front wiring of HS11F is as shown below.

HS11F-2
Model Specification 100 200 400
2P 3P 4P 2P 3P 4P 2P 3P 4P
HS11F Protective Front-Connected Knife Transfer Switch A 78140170 200200270 210210300
B 245290300 330330370 450450450
C -4080 7070140 16080160
D 112120120 220220220 260260260
E 405040 1407070 808080
F 165165165 245245245 312312312
H 180190200 240240240 280280300
h 707070 100100100 110110110
M --- 888 888
A 777 777 777

HS11 Front Terminal Rear Exit Central Handle Knife Transfer Switch Outline and Installation Dimensions

HS11F-4
Model Specification 100A, 200A 400A 600A 1000A
1P2P3P4P 1P2P3P4P 1P2P3P4P 1P2P3P4P
HS11 Front Terminal Rear Exit Central Handle Knife Transfer Switch A 100160190265 120200220300 140240270370 160280330450
B 330330330370 395395395455 500500460460 560560520520
C 6012070140 8016080160 100200100200 120240120240
D 220220220220 260260260260 220220220220 220220220220
E -707070 -808080 -100100100 -120120120
F 245245245245 285285285285 354354354354 374374374374
H 240240240240 280280280300 390390370370 450450430430
h 100100100100 110110110110 1001009595 150150145145
I 35353535 26262626 36363636 36363636
J 170170170170 216216216216 320320320320 304304304304
K 20202020 30303030 40404040 50505050
N ---- ---- 30303030 40404040
O ---- ---- ---- 25252525
P ---- ---- ---- 25252525
M 8888 12121212 16161616 12121212
A 7777 7777 9999 9999
Model Specification 1500A 2000A 3000A
1P2P3P4P 1P2P3P4P 1P2P3P4P
HS11 Front Terminal Rear Exit Central Handle Knife Transfer Switch A 170300380510 240400500680 260460600800
B 580580540540 680680680680 710710710710
C 130260130260 180360180360 200400200400
D 260260260260 240240240240 280280280280
E -130130130 t80180180180 200200200200
F 434434434434 480480480480 540540540540
H 470470450450 380380380380 390390390390
h 160160150150 170170170170 180180180180
1 32323232 48484848 50505050
J 340340340340 370370370370 404404404404
K 70707070 100100100100 120120120120
N 46464646 50505050 50505050
O 35353535 40404040 45454545
P 35353535 55555555 68686868
M 12121212 12121212 16161616
A 9999 11111111 13131313

HS11 Rear Terminal Central Handle Knife Transfer Switch Outline and Installation Dimensions

HS11F-7
Model Specification 100A, 200A 400A 600A 1000A
1P2P3P4P 1P2P3P4P 1P2P3P4P 1P2P3P4P
HS11 Rear Terminal Central Handle Knife Transfer Switch A 100170200270 120200220300 140240270370 160280330450
B 330330330370 395395395455 500500460460 560560520520
C 7014070140 8016080160 100200100200 120240120240
D 220220220220 260260260260 300300300300 350350350350
E -707070 -808080 -100100100 -120120120
F 245245245245 285285285285 340340340340 390390390390
H 240240240240 280280280300 330330310310 380380360360
h 120120120120 135135135145 140140125125 175175160160
I 35353535 26262626 36363636 36363636
J 120120120120 140140140140 220220220220 250250250250
K 20202020 30303030 40404040 50505050
N ---- ---- 30303030 40404040
0 ---- ---- ---- 25252525
P ---- ---- ---- 25252525
M 8888 12121212 16161616 12121212
A 7777 7777 9999 9999
Model Specification 1500A 2000A 3000A
1P2P3P4P 1P2P3P4P 1P2P3P4P
HS11 Rear Terminal Central Handle Knife Transfer Switch A 170300380510 240400500680 260460600800
B 580580540540 680680680680 710710710710
C 130260130260 180360180360 200400200400
D 410410410410 240240240240 280280280280
E -130130130 180180180180 200200200200
F 450450450450 420420420420 500500500500
H 390390370370 380380380380 390390390390
h 175175160160 170170170170 180180180180
I 32323232 48484848 50505050
J 285285285285 310310310310 330330330330
K 70707070 100100100100 120120120120
N 46464646 50505050 50505050
O 35353535 40404040 45454545
P 35353535 55555555 68686868
M 12121212 12121212 16161616
A 9999 11111111 13131313

Frequently Asked Questions (FAQ)

What are the main structural features of the HS11 series knife switch?
The HS11 series features a high-conductivity single-blade (200-400A) or double-blade (600-1500A) design with tin-plated contacts, an anti-error operation mechanism, mechanical safety interlocking, and compatibility with L198 auxiliary switches for sequential control.
How does the anti-error operation mechanism improve safety?
It utilizes a central rotating shaft design that prevents accidental misoperation, ensuring the blade is positioned accurately and handled safely during operation.
Can the HS11 knife switch be integrated with other control systems?
Yes, it is compatible with L198 auxiliary switches. The auxiliary contacts are designed to operate before the main contacts, allowing seamless integration with circuit breakers or motor control systems.
What wiring configurations are available for the HS11 series?
The series supports both front-mounted wiring (front wiring) and rear-mounted wiring (rear wiring) options to accommodate different installation and space requirements.
What is the purpose of the mechanical interlocking device?
The mechanical interlock blocks accidental closure under load, withstands short-circuit forces, and permits manual unlocking for safe emergency disconnection.
What rated operating currents are supported by the HS11 series?
The HS11 series supports a wide range of rated operating currents, starting from 100A and scaling up to 3000A, depending on the specific model and configuration.

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