DZ-10GW22-1B

Product information

Product Overview

A special-purpose basic switch with a short roller lever and screw terminals, rated 10 A at 250 VAC. The DZ series is Omron’s high-sensitivity, long-life basic switch for detection and position-sensing duties where a general-purpose microswitch would be working at its limit.

This page is written for buyers and maintenance engineers sourcing DZ-10GW22-1B as a new part or a replacement. Every specification below is taken from Omron’s own published data for this model; no third-party or estimated figures are used, and where Omron publishes two different figures or two variants for the same parameter, both are shown.

Omron catalogue designation: DZ series special-purpose basic switch. Official catalogue code for this model: DZ-10GW22-1B.

Why Buyers Specify This Model

The DZ exists for the duties a general-purpose microswitch cannot take

1,000,000 mechanical operations and 500,000 electrical operations at 10 A, with a permissible operating speed from 0.1 mm/s up to 1 m/s. A standard microswitch is rated for far fewer operations at this current, and it is cam-driven applications — indexing tables, counting shafts, mechanical end stops — where that difference shows up as a maintenance cost every few months.

Screw terminals, and why that is worth specifying

The −1B suffix is the screw-terminal version. On a machine that is serviced on site, a screw terminal is the difference between a five-minute replacement and a soldering iron. If your harness is already crimped with ferrules, this is the version to order.

High OT and the lever geometry

The short roller lever with high OT gives a wider travel window before the switch operates. On a mechanism where the cam position drifts, or where setting the striker exactly right is awkward, the extra travel tolerance is the difference between reliable detection and intermittent faults.

Inrush current is the hidden rating

Omron publishes inrush limits of 30 A for the NC contact and 15 A for the NO contact. Lamp loads and capacitive loads draw far more at switch-on than their steady-state rating suggests, and this is the figure that decides whether the contact survives.

Technical Specifications (Official Omron Data)

Parameter	Official value
Series	DZ special-purpose basic switch
Actuator	Short roller lever (滚珠短摆杆型)
Operating characteristic	High OT
Termination	Screw terminal (−1B suffix)
Rated voltage / current	AC 125 V, 10 A; AC 250 V, 10 A (resistive load)
Motor load rating (DZ-10G)	AC 125 V: 10 A, 1/8 HP; AC 250 V: 10 A, 1/4 HP; AC 480 V: 2 A; DC 125 V: 0.5 A; DC 250 V: 0.25 A
Permissible operating speed	0.1 mm/s to 1 m/s
Permissible operating frequency	Mechanical: 240 operations/min.; Electrical: 20 operations/min.
Insulation resistance	100 MΩ min. (at 500 VDC)
Contact resistance	15 mΩ max. (initial value)
Dielectric strength	AC 1,000 V, 50/60 Hz for 1 min. between non-continuous terminals; AC 1,500 V, 50/60 Hz for 1 min. between current-carrying metal parts and non-current-carrying metal parts, between current-carrying metal parts and ground, and between switches
Vibration resistance	Malfunction: 10 to 55 Hz, double amplitude 1.5 mm
Shock resistance	Destruction: 1,000 m/s² max.; Malfunction: 300 m/s² max.
Durability — mechanical	1,000,000 operations min.
Durability — electrical	500,000 operations min.
Contact material	Silver alloy
Contact gap (standard value)	0.5 mm
Inrush current	NC: 30 A max.; NO: 15 A max.
Degree of protection	IP00
Protection against electric shock	Class I
Tracking resistance (PTI)	175
Ambient operating temperature	−25 to 80 °C (no icing)
Ambient operating humidity	35% to 85% RH
Weight	Approx. 30 to 50 g

Decoded from Omron’s official DZ model lineup: “GW22” identifies the short roller lever actuator with high OT, and the “−1B” suffix identifies the screw-terminal version (the equivalent with solder terminals is −1A). Order the actuator and terminal style you actually need — they are separate catalogue numbers.

Lifecycle and availability

Omron’s China FA site publishes the DZ series as a current product family with a full model lineup and published specifications. Nothing in the official data for DZ-10GW22-1B carries a discontinuation notice.

The DZ series has been in Omron’s range for a long time, which is a benefit for maintenance: machines built decades ago still use it, and the model numbering has stayed stable. Send the quantity, the required date and — where you are replacing one — a photograph of the old switch, and we will confirm the exact actuator and terminal variant before shipping.

Availability, condition of supply and lead time are quoted per enquiry because they depend on quantity and on where the goods are held. We do not publish stock or lead time as fixed figures on this page. Tell us the quantity and the date you need it and we will answer with a firm position rather than a promise.

Official Documentation

The specifications on this page are taken from Omron’s own documents. You can download the source document directly:

• DZ Series Special-purpose Basic Switch — Omron China official product data — https://www.fa.omron.com.cn/products/family/292/specification.html

Full technical detail — wiring diagrams, derating curves, installation requirements and the complete ordering tables — is in that document. If you need a specific figure we do not show here, ask and we will point you to the exact page rather than paraphrase it.

Ordering This Part

Send us the full catalogue number DZ-10GW22-1B (and the model number DZ-10GW22-1B you are replacing), the quantity, your delivery address and the date you need the goods. If it is a replacement, attach a photograph of the existing unit’s nameplate — it removes any doubt about the revision, the output type or the supply voltage, which are the three things that most often cause a wrong part to be shipped.

We do not publish stock, condition or lead time as fixed figures here, because they change: they are quoted per enquiry against the quantity and date you actually need. If a machine is down, say so and give us the required window — that is the information that determines how we source it.

Frequently Asked Questions

−1A or −1B?

−1A is solder terminal, −1B is screw terminal. Everything else in the model number describes the actuator. If you are matching an existing installation, look at how the wires are attached before ordering.

What does the actuator code mean?

Omron’s DZ lineup runs from the plain pin plunger (DZ-10G) through lever types. GW22 is the short roller lever, high OT. The complete lineup in Omron’s official data covers pin plunger, lever, low-OT lever, short roller lever and roller lever variants — tell us the mechanical arrangement and we will confirm the code that matches.

Can it switch a motor directly?

Omron publishes motor-load ratings for the DZ-10G series — 1/8 HP at 125 VAC and 1/4 HP at 250 VAC. Those are the figures to check against, not the 10 A resistive rating.

What accessories are available?

Omron lists insulation plates (AP-A, AP1-A, AP-Z types) and a separator for the Z series. If you need one with the switch, ask and we will quote it together so the switch is not held up waiting for a small part.