Documentation & Downloads
Schneider Electric ZBE302 Harmony XB4/B5 Single NC Monitoring Contact Block, 1 NC, Silver Alloy
- MPN: ZBE302
- PPN: SCH-ZBE302
CAD
$51.26
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Description
This product is part of the Harmony XB4 and XB5 range, an offer of Ø 22mm pushbuttons, switches and pilot lights. It is a single contact block with silver alloy contact. It is only used in combination with an emergency stop pushbutton and is not compatible with other pushbuttons. It comes with 1 NC monitoring contact with slow break operation. The NC contact is opened when the emergency stop is activated. The monitoring feature triggers emergency stop due to improper installation. It comes with CE, CCC, UKCA, EAC, UL and CSA certification. This monitoring contact is compatible for emergency stops in both the XB4 and XB5 range. It connects to control circuits with simple screw-clamp connections. The Harmony XB4 and XB5 range offers innovative features for simple and efficient use.
Features
- Unlike standard auxiliary contacts, this premium Harmony component functions as a 1 NC (Normally Closed) monitoring contact block. It is specifically engineered to detect whether the contact block is correctly attached to the front actuator head assembly. If the contact block accidentally unclips or separates due to severe vibration, improper installation, or a physical hit, the internal monitoring circuit mechanically forces the safety line open, triggering an immediate emergency shutdown rather than leaving the system in a dangerously unmonitored "blind" state.
- This highly specialized element is designed exclusively for use with Harmony XB4 and XB5 series emergency stop push-buttons. It is structurally incompatible with standard selector switches or normal momentary push-buttons, acting as a dedicated hardware-level supervisor for critical life-safety containment zones.
- Built with a certified positive opening mechanism conforming to EN/IEC 60947-5-1 Appendix K, the Normally Closed monitoring path does not rely solely on spring tension to open. When the emergency stop actuator is struck, the internal mechanics apply a direct, continuous force that physically shears apart micro-welds or contact stickiness within 1.5 mm of operating travel, guaranteeing a reliable stop execution.
- Optimized for control-circuit interlocking rather than switching high-power loads, this block features a conventional free-air thermal current of 6 A and a rated insulation voltage of 300V. It operates reliably under AC-15 utilization parameters up to 3 A at 120V or 1.5 A at 240V, interfacing seamlessly with safety controllers and modern dual-channel safety relays.
- Equipped with standard finger-safe IP20 screw clamp terminals, the unit delivers a reliable connection utilizing up to 1.2 N.m of tightening torque.
- Built using heavy-duty silver-nickel (Ag/Ni) contacts housed in a durable plastic chassis, this module delivers a mechanical and electrical durability rating of 300,000 cycles. It features specialized TH protective treatments that permit continuous operation across a wide thermal range from -40°C to 70°C, shielding internal contact elements from moisture and thermal shock.
Documentation & Downloads
Specifications
Key Specifications
- Contacts Usage
- monitoring contact
- Contact Block Type
- single
- Ip Degree Of Protection
- IP20 IEC 60529
- Sale Per Indivisible Quantity
- 5
- Device Short Name
- ZBE
Range Of ProductHarmony XB4 || Harmony XB5
Product Or Component Typecontact block
Connections - Terminalsscrew clamp terminals, <= 2 x 1.5 mm² with cable end IEC 60947-1 || screw clamp terminals, >= 1 x 0.34 mm² without cable end IEC 60947-1
Contact Operationslow-break
Complementary
- Mounting Of Block
- front mounting
- Operating Force
- 5 N NC changing electrical state
- Operating Travel
- 1.5 mm NC changing electrical state) || 4.3 mm total travel)
- Positive Opening
- with IEC 60947-5-1 appendix K
- Net Weight
- 0.013 kg
- Cad Overall Height
- 41 mm
- Electrical Durability
- 300000 cycles, AC-15, 2 A 230 V 3600 cyc/h 0.5 IEC 60947-5-1 appendix C || 300000 cycles, AC-15, 3 A 110 V 3600 cyc/h 0.5 IEC 60947-5-1 appendix C || 300000 cycles, AC-15, 3 A 24 V 3600 cyc/h 0.5 IEC 60947-5-1 appendix C || 300000 cycles, DC-13, 0.3 A 120 V 3600 cyc/h 0.5 IEC 60947-5-1 appendix C || 300000 cycles, DC-13, 1 A 24 V 3600 cyc/h 0.5 IEC 60947-5-1 appendix C
- [Ie] Rated Operational Current
- 1.5 A 240 V, AC-15, B300 IEC 60947-5-1 || 3 A 120 V, AC-15, B300 IEC 60947-5-1 || 0.11 A 250 V, DC-13, R300 IEC 60947-5-1 || 0.22 A 125 V, DC-13, R300 IEC 60947-5-1
- Electrical Reliability
- λ < 10exp(-7) 5 V 1 mA in clean environment IEC 60947-5-4 || λ < 10exp(-8) 17 V 3.4 mA in clean environment IEC 60947-5-4
- Cad Overall Width
- 10 mm
- Shape Of Screw Head
- cross pozidriv No 1 || slotted flat Ø 4 mm || slotted flat Ø 5.5 mm
Contacts Type And Composition1 NC monitoring contact
Short-Circuit Protection6 A cartridge fuse gG IEC 60947-5-1
Contacts Materialsilver alloy (Ag/Ni)
[Ith] Conventional Free Air Thermal Current6 A IEC 60947-5-1
[Uimp] Rated Impulse Withstand Voltage4 kV IEC 60947-1
Device Presentationbasic element
[Ui] Rated Insulation Voltage300 V 3)IEC 60947-1
Mechanical Durability300000 cycles
Tightening Torque0.8-1.2 N.m IEC 60947-1
Cad Overall Depth26 mm
Environment
- Product Certifications
- CSA || EAC || BV || DNV || CE || LROS (Lloyds register of shipping) || CCC || UL listed || CB Scheme || UKCA
- Standards
- IEC 60947-1 || IEC 60947-5-1 || IEC 60947-5-4 || UL 60947-5-1 || CSA C22.2 No 60947-5-1 || JIS C8201-1 || JIS C8201-5-1 || GB/T 14048.5 || BS EN 60947-5-1 || GOST IEC 60947-5-1
- Vibration Resistance
- 5 gn 10-500 Hz)IEC 60068-2-6 || 25 mm peak to peak 2-10 Hz)IEC 60068-2-6
- Protective Treatment
- TH
Ambient Air Temperature For Operation-40-70 °C
Shock Resistance30 gn 18 ms) half sine wave acceleration IEC 60068-2-27 || 50 gn 11 ms) half sine wave acceleration IEC 60068-2-27 || 25 gn 6 ms) 1000 shocks on each axis IEC 60068-2-27
Ambient Air Temperature For Storage-40-70 °C
Contractual warranty
- Warranty
- 18 months
Offer Sustainability
- Rohs Exemption Information
- Yes
- Toxic Heavy Metal Free
- Yes
- Reach Free Of Svhc
- Yes
- Eu Rohs Directive
- Compliant
Mercury FreeYes
Reach RegulationFree of Substances of Very High Concern above the threshold
China Rohs RegulationX
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CAD
$51.26
/ EA
Available to Order
Lead times may vary. For an accurate estimate please contact us.
Company Stock:
0
Looking to buy a large quantity?
To view product inventory
CAD$51.26/ EA
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