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Brand: Schneider Electric
Schneider Electric ZBE203 Contact Block 2NO
Description
ZBE203: Harmony contact block with 2NO function
The ZBE203 is a Schneider Electric contact block for 22 mm Harmony XB4 and XB5 operators, carrying two normally open contacts in one double block with screw clamp terminals. Seven Star LLC supplies the ZBE203 in Oman and the GCC as an independent supplier in Muscat, mainly to panel shops and maintenance stores that restock the contact side of push-button and selector stations.
The datasheet lists it as a contact block of the ZBE type, sold in packs of 5. Unlike the ZB5AZ bodies, a ZBE block carries no fixing collar of its own, so it is clipped behind the head together with a collar or on a body, and one pack is meant to cover several stations.
What the 2NO contact does
A double block gives two independent make contacts in the space of one stack position, so one press can start two circuits, for instance a PLC input and a hard-wired coil. Positive opening is listed as ‘without’.
The NO contacts change state after 2.6 mm of travel out of 4.3 mm total, and the operating force of 5 N is higher than the 2.3 N of a single block because two contacts are driven together.
Stacking and combination with heads and bodies
A double block combines two contacts in one body. The composition codes on the datasheet allow fewer double blocks per head (C2 up to 3, M2 up to 2) than single blocks (C1 up to 9, M1 up to 6), because each double block takes more room, and the larger operating force listed for this reference shows that it loads the operator more than a single block does. Plan the stack with that in mind.
The datasheet records the electrical composition codes C2 (quantity ≤ 3), C4, C6, C8, C10, C13 and M2, M4, M8, which state how many blocks of this kind fit with each type of head or light block. For ZBE203, check the planned stack against these codes.
ZBE blocks in this lane and where ZBE203 sits
The eight blocks below share the Harmony XB4 and XB5 mounting but differ in contacts, terminals and ratings.
| Part | Contacts | Terminals | Remark from the datasheet |
|---|---|---|---|
| ZBE101 | 1 NO | Screw clamp | Standard, silver alloy |
| ZBE102 | 1 NC | Screw clamp | Positive opening |
| ZBE1013 | 1 NO | Faston | Ui 250 V |
| ZBE1015 | 1 NO | Push-in | Compact, Ui 300 V |
| ZBE1016 | 1 NO | Screw clamp | Gold flashed, low power |
| ZBE203 | 2 NO | Screw clamp | Double block |
| ZBE204 | 2 NC | Screw clamp | Double block, positive opening |
| ZBE205 | 1 NO + 1 NC | Screw clamp | Double block, positive opening |
Terminals and wiring of the ZBE203
Screw clamp terminals take up to two 1.5 mm² conductors with cable ends, or one conductor from 0.22 mm² without ends. The datasheet gives a tightening torque of 0.8 to 1.2 N.m for ZBE203 and screw heads that accept Philips or pozidriv No 1 drivers and flat 4 mm or 5.5 mm blades. Use ferrules on stranded wire so that no strand escapes the clamp.
The IP20 rating in the datasheet applies to the block itself, which sits behind the panel, so the sealing of the station against water and dust is provided by the head and the gasket. Keep insulation clearances in mind between neighbouring blocks, and label each block so that the terminal numbers in the drawing match the wiring.
Technical data of the ZBE203
| Parameter | Specification |
|---|---|
| Manufacturer / part number | Schneider Electric / ZBE203 |
| Range | Harmony XB4 and Harmony XB5 |
| Product type | Contact block |
| Device short name | ZBE |
| Sold in quantities of | 5 pieces |
| Contacts | 2 NO |
| Block type | Double |
| Contact operation | Slow-break |
| Contacts usage | Standard contacts |
| Connections | Screw clamp terminals, ≤ 2 × 1.5 mm² with cable end; ≥ 1 × 0.22 mm² without cable end; 60947-1 |
| Positive opening | Without |
| Operating travel | 2.6 mm (NO changing electrical state), 4.3 mm (total travel) |
| Operating force | 5 N NO changing electrical state |
| Mechanical durability | 10,000,000 cycles |
| Tightening torque | 0.8–1.2 N.m |
| Net weight | 0.02 kg |
| Contact material | Silver alloy (Ag/Ni) |
| Thermal current [Ith] | 10 A |
| Insulation voltage [Ui] | 600 V (pollution degree 3) |
| Impulse withstand [Uimp] | 6 kV |
| Short-circuit protection | 10 A cartridge fuse type gG |
| Mounting | Front mounting |
| IP degree of protection | IP20 |
| Operating / storage temperature | −40 to 70 °C |
| Certifications | GOST, DNV, CSA, UL, LROS (Lloyds register of shipping), CCC, BV |
Typical uses in Oman and the GCC
Contact blocks such as ZBE203 are held as maintenance spares by plants that run many Harmony stations: motor control centres, pump and fan starters, gate controls and packaged skids in oil and gas, power, water and desalination sites. In hot and dusty conditions the contact side is the part most likely to be worn first, so a stocked pack lets an electrician restore a station in minutes.
Information to send with an RFQ for ZBE203
The points below let us confirm the part number against the datasheet and check stock in one reply.
- Part number ZBE203 and the number of packs.
- Contact arrangement required and whether a positive-opening contact is needed.
- Terminal style: screw clamp, faston or push-in.
- The control voltage and current to be switched.
- The head and collar the block will be used with.
- Delivery location and lead time.
A photo of the old block with its label visible helps us to confirm a like-for-like match.
Ratings, durability and environment
The datasheet lists operational currents of 3 A at 240 V, AC-15, A600, 6 A at 120 V, AC-15, A600, 0.1 A at 600 V, DC-13, Q600, 0.27 A at 250 V, DC-13, Q600, with a thermal current of 10 A and a 10 A gG cartridge fuse for short-circuit protection. The insulation voltage is 600 V (pollution degree 3). The datasheet also states an electrical durability of 1,000,000 cycles at the quoted AC-15 and DC-13 conditions, with lower test currents for double blocks than for single ones. Mechanical durability is 10 million cycles for ZBE203, and the operating and storage range runs from -40 to 70 °C.
Vibration resistance is 5 gn (f= 2–500 Hz) and shock resistance reaches 30 gn for 18 ms and 50 gn for 11 ms. The certifications on the datasheet are GOST, DNV, CSA, UL, LROS (Lloyds register of shipping), CCC, BV. These apply to this exact reference only, so match any approval needed by the project against that list for this unit.
Documents and quotation
A copy of the Schneider Electric datasheet for the ZBE203 is attached on this page for your technical file. It holds the electrical, mechanical and environmental values that are summarised above.
To request a quotation, send the part number and the quantity through the enquiry form and we will reply with availability and delivery terms. Seven Star LLC is an independent supplier and does not act for the manufacturer, so please compare the datasheet with your project requirements before you order.
Other Models in the Se Zbe Block Range
Seven Star LLC supplies models from the Se Zbe Block range in Oman and the GCC. Compare the related models below and request a quote for the one that matches your application.
| Model | Category | |
|---|---|---|
| Schneider Electric ZBE101 Contact Block 1NO | Automation Accessories | View details |
| Schneider Electric ZBE203 Contact Block 2NO | Automation Accessories | You are viewing this model |
Datasheets & Documents
- Datasheet Schneider Electric ZBE203 Datasheet Download
Reviews (0)
About brand
Schneider Electric is the French group for energy management and industrial automation: low and medium voltage switchgear and circuit breakers, motor control, drives, PLCs, power monitoring, UPS systems and building management. Its history goes back to 1836, when the brothers Adolphe and Eugène Schneider took over the iron and steel works at Le Creusot in Burgundy. Over the 20th century the company left steel and heavy engineering and became an electrical group through acquisitions such as Merlin Gerin, Télémécanique, Square D and Modicon. Its head office is in Rueil-Malmaison near Paris, and its shares are listed on Euronext Paris.
Schneider Electric company profile
| Origins | 1836, Le Creusot, France: Adolphe and Eugène Schneider take over the Le Creusot foundry |
|---|---|
| Headquarters | Rueil-Malmaison (Paris region), France |
| Ownership | Public company listed on Euronext Paris |
| Key acquisitions | Télémécanique (1988), Square D (1991), Merlin Gerin (1992), Modicon (1997), APC (2007), Invensys (2014); majority owner of AVEVA software |
| Brand names still in use | Acti9, ComPacT and MasterPacT breakers, TeSys motor control, Altivar drives, Altistart soft starters, Modicon PLCs, Harmony control components, PowerLogic and Easergy protection and metering, APC UPS, EcoStruxure software platform |
| Product families | Low voltage distribution, medium voltage switchgear and protection relays, motor control and drives, PLCs and HMIs, power meters, UPS and cooling, enclosures, building automation and energy software |
Milestones
- 1836: The Schneider brothers acquire the Le Creusot works; the business grows in steel, locomotives and heavy engineering.
- 1975: First investment in Merlin Gerin, a French maker of electrical distribution equipment.
- 1988–1992: Télémécanique, Square D (USA) and Merlin Gerin join the group, making it an electrical specialist.
- 1997: Modicon, the company behind the first programmable logic controller, joins the group.
- 1999: The group takes the name Schneider Electric.
- 2007 and 2014: APC (UPS and data centre power) and Invensys (process automation) are acquired.
Choosing Schneider Electric breakers and motor control
Circuit breakers are chosen by current and breaking capacity. Acti9 miniature circuit breakers (iC60, C120) protect final circuits up to 125 A. ComPacT NSX molded case breakers cover about 16 to 630 A, and the letter after the frame size sets the breaking capacity: B, F, N, H, S, L from lowest to highest. MasterPacT air circuit breakers are used as main incomers on large switchboards. For motors, a TeSys contactor with an LRD overload relay or a GV2 motor circuit breaker suits direct starting, an Altistart soft starter reduces starting current, and an Altivar drive controls speed. The breaking capacity must always be at least the prospective short-circuit current at the point of installation.
Where Schneider Electric products are used
In Oman and the GCC, Schneider Electric equipment is found in main and sub-main switchboards of commercial and residential buildings, motor control centres in water, oil and gas and industrial plants, substations protected by Sepam and Easergy relays, data centres powered by Galaxy and APC UPS systems, and buildings controlled by EcoStruxure Building Operation.
APC by Schneider Electric: UPS and critical power
Since 2007, APC has been part of Schneider Electric and is now its product brand for uninterruptible power supplies, replacement batteries, battery packs, network management cards and rack power distribution. Our APC catalogue covers Smart-UPS line-interactive and on-line models, Easy UPS On-Line, the modular Symmetra LX, RM and PX ranges, Silcon three-phase systems and their spare part kits, and the RBC cartridges that keep them running. Schneider Electric breakers, drives and PLCs can be quoted together with APC UPS systems in one request.
Schneider Electric products we list
| Family | Examples |
|---|---|
| Circuit breakers | Acti9 iC60N, C120N, NSX100F, NSX250N, NSX630, EasyPact EZC, MasterPacT MTZ1, MasterPacT NW |
| Motor control | TeSys Deca LC1D, TeSys F, LRD overload relay, GV2ME08, Altistart 22, Altistart 480 |
| Drives | Altivar 12, Altivar 320, ATV340, Altivar Process 630, ATV930, Lexium 32 servo |
| PLCs, HMIs and relays | Modicon M221, M241, M580 BMEP582040, Zelio Logic, Magelis HMISTU655 |
| Protection, metering and power | Sepam series 20, Easergy P3U30, MiCOM P139, PM5560, iEM3255, Galaxy VS UPS |
Ordering Schneider Electric products: what we need
Send the commercial reference from the label (for example LC1D18M7 or ATV320U22N4C). For breakers, confirm the rated current, number of poles, breaking capacity and trip unit. For contactors, give the coil voltage. For drives, give the motor power and supply voltage. APC products are listed on their own brand page.
Facts checked against Schneider Electric's published company history, October 2026.
Browse Schneider Electric products by category: Circuit Breaker, Electrical & Power Modules, AC Drives, PLC & I/O Cards, Metering Systems, UPS and Batteries.
FAQ
Questions about the Schneider Electric ZBE203 Contact Block 2NO
Answers from our engineering team on installation, compatibility and integration.
01What contacts does the ZBE203 have?
The datasheet lists two normally open contacts in one double block, with slow-break operation and a double block construction.
02How many pieces are in a pack of ZBE203?
The datasheet gives a sale per indivisible quantity of 5, so the unit of sale is a pack of 5.
03What terminals does the ZBE203 use?
Screw clamp terminals for up to two 1.5 mm² conductors with cable ends, tightened to 0.8 to 1.2 N.m.
04What operating temperature is listed for the ZBE203?
The datasheet lists -40 to 70 °C for both operation and storage, with IP20 protection for the block.
05Does Seven Star LLC supply the ZBE203 in Oman?
Yes. Seven Star LLC is an independent supplier in Muscat serving Oman and the GCC. Send the part number and the quantity and we confirm availability and the documents we can provide.
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